[HN Gopher] macOS Sonoma Boot Failures
       ___________________________________________________________________
        
       macOS Sonoma Boot Failures
        
       Author : ColoursofOSINT
       Score  : 277 points
       Date   : 2023-10-31 18:33 UTC (4 hours ago)
        
 (HTM) web link (github.com)
 (TXT) w3m dump (github.com)
        
       | gcr wrote:
       | TL;DR: Recent macOS Sonoma and 13.6 Ventura have upgrade bugs
       | that brick some macs and make recoveryOS unusable, causing a
       | black screen that requires a DFU revive.
       | 
       | Issues on Sonoma appear most often on dual-booting macs:
       | https://support.apple.com/en-us/HT208891
       | 
       | Ventura upgrades can also bite you if your display refresh rate
       | is set to anything other than ProMotion, for unclear reasons.
       | 
       | The doc is on the Asahi Linux wiki because their developers
       | discovered this issue, but it's not unique to Asahi. In fact,
       | _running the Asahi Linux installer_ can detect whether your mac
       | will be affected by this issue, even if you ultimately choose not
       | to install Asahi Linux. See the article for details.
        
       | neilalexander wrote:
       | Interestingly I ran into this exact problem with my work MacBook
       | Pro M1 upgrading to Ventura 13.6 and assumed it was a totally
       | isolated incident. I don't have a dual-boot setup either, just a
       | single macOS install.
       | 
       | The computer was connected to a Thunderbolt Display during the
       | update which I assume had the same effect of changing the refresh
       | rate to something other-than-ProMotion that the linked article
       | mentions. I had to do a DFU restore from another Mac and then run
       | the macOS Sonoma installer from USB, which thankfully detected
       | the existing install and did an in-place upgrade, preserving all
       | of my data. Nothing else worked.
       | 
       | I also wasted far too much time trying to get the DFU restore to
       | work before discovering that you cannot use a Thunderbolt cable
       | -- it has to be done using a plain USB-C cable, otherwise the
       | Apple Configurator simply won't detect the other Mac.
        
         | alsetmusic wrote:
         | > I also wasted far too much time trying to get the DFU restore
         | to work before discovering that you cannot use a Thunderbolt
         | cable -- it has to be done using a plain USB-C cable, otherwise
         | the Apple Configurator simply won't detect the other Mac.
         | 
         | I would have expected a Thunderbolt cable to be required, if
         | either was. This is quite surprising to me. Usually, the more
         | capable (higher bandwidth) cable works if one isn't supported.
         | I'll hope to remember this is I ever find myself reviving a
         | bricked Mac in the future.
        
           | vbezhenar wrote:
           | I restored my Macbook just one hour ago with crappy USB-C
           | USB-A cable, god bless the libimobiledevice creator.
        
           | spacedcowboy wrote:
           | I am currently restoring an MBP using Configurator and a
           | thunderbolt cable. You definitely can use one, perhaps your
           | TB cable is buggered ?
        
           | brigade wrote:
           | It's done over USB 2.0 largely because that's simpler than
           | involving newer and faster specs, and partly because that's
           | how the original iPhone did it.
           | 
           | My understanding is that all complaint _USB_ USB-C cables
           | should work for USB 2.0, even USB4 /TB4 cables, but active
           | TB3 cables might not hook up the USB 2.0 pins.
        
           | phillco wrote:
           | I've used a Thunderbolt cable as well successfully, but one
           | note is that they're very picky about which port you use. On
           | my Mac mini, I had to use the exact port outlined here or it
           | did not show up: https://support.apple.com/guide/apple-
           | configurator-mac/reviv...
        
         | JohnMakin wrote:
         | Exact same thing happened to me.
        
           | tpmx wrote:
           | What kind of HW?
        
         | tpmx wrote:
         | This is depressing. They clearly have they ability ($$$) to do
         | the required amount of manual QA, but don't. Or there was QA
         | and someone decided that your case still wasn't enough to hold
         | up the release.
         | 
         | In my mind, when we pay that ridiculous Apple premium on RAM
         | and storage, we pay for excellent quality in SW/HW. They also
         | need to deliver that quality.
        
           | mort96 wrote:
           | Or they did QA but just happened to miss this issue. Most
           | companies would consider "the upgrade sometimes bricks the
           | device" to be a release-stopping bug, I'm betting Apple is
           | among them.
        
             | tpmx wrote:
             | That would be: not delivering while still charging a
             | premium.
        
             | krackers wrote:
             | Apple still hasn't put up any official page about the issue
             | though, nor does it appear they've pulled the update. Even
             | if it missed QA, why haven't they made any official
             | comment?
        
               | FirmwareBurner wrote:
               | You clearly don't know Apple as a company. Last most big
               | companies, they never EVER publicly admit any faults or
               | mistakes with their products (unless forced to by large
               | scale fiascos) because that would damage their perfect
               | brand image. It's why they have comments disabled on all
               | their social media accounts.
        
               | JumpCrisscross wrote:
               | > _they never EVER publicly admit any faults or mistakes
               | with their products_
               | 
               | Of course they do. They're just secretive in general, and
               | keep communications edited. Compared to the word salad of
               | modern companies on social media, I find it refreshing.
               | Just fix the problem, issue replacements for those
               | affected and move on quietly.
        
               | FirmwareBurner wrote:
               | _> Of course they do. _
               | 
               | Where? Do you have any examples?
        
             | codr7 wrote:
             | Used to be, while Jobs was still around.
             | 
             | These days it's just a bunch of wannabes trying too hard to
             | be him.
        
           | pb7 wrote:
           | It's a bug...
        
             | tpmx wrote:
             | It's a _device bricking_ bug. For a $2.5-10k device.
        
         | user9163 wrote:
         | ya - I cant update my m1 macbook air without going into DFU
         | mode and using configurator to "revive" my macbook. Otherwise
         | it just tells me "Failed to personalize the software update".
         | Made the mistake of going to the Apple Store where they
         | promptly restored my machine deleting all my data - only to
         | encounter the exact same issue when the next update is shipped.
         | This way you cant even show them that their fix did not
         | actually fixed it permanently.
        
         | atregir wrote:
         | Also what's with the magic trick of entering DFU mode by
         | pressing the buttons at a very specific time for a very
         | specific number of seconds? Felt like singing a song to some
         | fictional Mac OS gods and hoping for the stars to align for the
         | laptop to show up in the second Mac. Ah, also the port you use
         | for the USB-C cable matters!! Has to be the first from the
         | left? But why?
         | 
         | Anw, I followed a video by Mr. Macintosh and managed to get
         | mine up and running, whew.
        
       | racl101 wrote:
       | I am so terrified of this upgrade that I think I'll wait a whole
       | year. That's not a good thing.
        
         | hbn wrote:
         | I pretty much always wait 6 months or so for Mac upgrades on
         | whatever machine is important to me. There seems to pretty
         | consistently be regular bugfix updates for the few months
         | following a release.
        
         | cramjabsyn wrote:
         | Its realistically what you should be doing unless your machine
         | is a test host itself.
        
         | teaearlgraycold wrote:
         | Unless you aren't doing anything important on your Mac that's
         | always good advice.
        
         | rangestransform wrote:
         | this happened to my work macbook while I was trying to upgrade
         | to ventura, a 1 year old macos version
        
         | shever73 wrote:
         | That's probably wise. I wish I had waited. Since upgrading to
         | Sonoma, I have recurring issues with the system file dialog.
         | Sometimes the dialog will open, but not allow me to save, other
         | times it will just fail to open altogether.
         | 
         | Any time I start a new video project now, I save it instantly
         | because Command+S still works, but if it opens the Save As
         | dialog then it frequently won't.
        
       | krackers wrote:
       | See also his twitter for some speculation as to how on earth
       | simply changing refresh rate would cause boot corruption:
       | https://social.treehouse.systems/@marcan/111329614147717090
       | 
       | >Why? I can tell you why: because Apple _hates_ display modeset
       | flicker, and switching modes between ProMotion on /off causes a
       | modeset flicker, so of _course_ they made it so that is stored in
       | nvram somewhere and applied when the screen is turned on during
       | early boot, so when macOS boots it doesn 't have to flicker
       | again.
       | 
       | >And they didn't test it with older OS bootloaders, so display
       | handoff/init just fails catastrophically with those when this
       | mode is enabled.
        
         | NavinF wrote:
         | Interesting. I wonder why anyone would turn ProMotion off
         | considering that 120Hz massively improves responsiveness. I've
         | only encountered one app that doesn't work with variable
         | refresh rate and that's Genshin on Windows. Even that's
         | probably not an issue with newer monitors that can handle VRR
         | down to 60Hz without my monitor's frame-doubling flicker as it
         | keeps switching been 60Hz and 120Hz
        
           | Wowfunhappy wrote:
           | > I wonder why anyone would turn ProMotion off considering
           | that 120Hz massively improves responsiveness.
           | 
           | The first reason that comes to mind is battery life. That's
           | probably the most broadly applicable use case.
           | 
           | But also, if I was still doing e.g. frontend web development,
           | I would want to confirm that my css animations looked nice at
           | 60 hz.
           | 
           | Edit: My first use case is likely wrong, thank you to replies
           | for reminding me Apple uses adaptive refresh down to 1 hz.
        
             | vvillena wrote:
             | Isn't battery life a reason to keep it on? The refresh rate
             | will be down to 24hz most of the time.
        
             | jwells89 wrote:
             | macOS is very good at adaptively reducing refresh rate when
             | nothing is happening on screen, with the panel reportedly
             | supporting the full range of 1-120hz so barring badly
             | engineered apps that are permanently pinned at max refresh,
             | the battery impact of keeping ProMotion on is minimal for
             | most use cases.
        
               | Wowfunhappy wrote:
               | Oops, thank you, I completely forgot they were doing the
               | adaptive refresh thing!
        
               | londons_explore wrote:
               | Which raises the question even more why the refresh rate
               | matters during early bootup - surely you could just start
               | with an apple logo and a 1 Hz refresh rate, and then up
               | the rate later during boot when it's time to do some
               | animation...
        
             | beebeepka wrote:
             | Why would 60 FPS CSS animations look bad on high refresh
             | displays?
        
               | Wowfunhappy wrote:
               | Well the CSS transition wouldn't run at 60 fps, it would
               | run at 120 fps, no?
               | 
               | An animation that looks slick at 120 fps might look too
               | fast/slow/complex/whatever on a common 60 hz screen. So
               | if I was still doing this sort of development, I'd prefer
               | to be working on a 60 hz monitor.
        
               | beebeepka wrote:
               | Aren't CSS animations capped at 60, same as
               | requestAnimationFrame?
               | 
               | I've been advocating (and using) high refresh displays
               | for over two decades and I find your reasoning
               | preposterous. Downgrading to crappy 60 Hz monitor for
               | nothing.
        
               | Wowfunhappy wrote:
               | > Aren't CSS animations capped at 60, same as
               | requestAnimationFrame?
               | 
               | Did some quick Googling to make sure I wasn't just out of
               | the loop on this, as far as I can tell they are not the
               | same: https://github.com/whatwg/html/issues/5025
        
               | beebeepka wrote:
               | Can you point me to the part confirming your claim? If
               | anything, it's confirming mine that they both are stuck
               | at 60 Hz.
        
               | Wowfunhappy wrote:
               | The link says:
               | 
               | > As such, on their 120hz devices, requestAnimationFrame
               | is throttled to 60hz, whereas CSS animations run at
               | 120hz.
               | 
               | Please let me know if I am misunderstanding, it has been
               | a few years since I've done this type of work.
        
               | c-hendricks wrote:
               | I'm not even sure CSS animations can go above 60fps, and
               | am unsure why you'd think it would be faster / slower on
               | a different refresh rate screen: CSS transitions are
               | defined by time, not frames.
        
               | Wowfunhappy wrote:
               | Sorry, I meant the animation might _look_ too fast,
               | psychologically. The frame rate changes how we perceive
               | movement.
        
           | MagerValp wrote:
           | To run x64sc at a buttery smooth 50 fps.
           | 
           | Admittedly rather niche use case.
        
           | zippergz wrote:
           | I turn it off because I can't tell the difference and if it
           | doesn't improve anything for me, I might as well not have the
           | system wasting battery and other resources on it.
        
             | pb7 wrote:
             | It does the opposite: it goes well below 60Hz when there is
             | no motion on screen.
        
           | userbinator wrote:
           | _I wonder why anyone would turn ProMotion off considering
           | that 120Hz massively improves responsiveness._
           | 
           | ...and I bet that 's exactly the attitude Apple had when
           | implementing things, which lead to this mess.
        
         | jwells89 wrote:
         | The messiness of resolutions during boot always annoyed me on
         | PCs. It was understandable back in the days of BIOS, but ith
         | the advent of UEFI it seems like it should be possible to run
         | EFI config screens and the like at monitor native rez (or at
         | minimum, native aspect ratio) but I've never seen this... it's
         | always 1024x768 or somesuch stretched to fit a 16:9 monitor
         | which looks awful.
        
           | wmf wrote:
           | Good UEFI like Surface devices is native resolution so you
           | can have flicker-free boot. My Gigabyte motherboard recently
           | got native resolution with a UEFI update.
        
             | jwells89 wrote:
             | Nice to hear that good implementations exist somewhere out
             | in the wild. I hope my AM4 and LGA1700 boards by Asus get
             | similar updates at some point.
        
             | ddalex wrote:
             | I don't understand why modeset causes flicker - fade to
             | black, turn off screen, change resolution, turn on screen,
             | fade to image.
        
               | beebeepka wrote:
               | Fancy fade in/out effects this early?
        
               | mjg59 wrote:
               | "Fade to black, turn off screen, turn on screen, fade to
               | image" is just slower flicker.
        
               | WesolyKubeczek wrote:
               | This summer I went into an apple store, and there was
               | this 2019 Intel Mac Pro tower hooked up to the shiny 6k
               | XDR display. I brought up the System Settings, and set
               | the resolution one notch towards "More Space". It faded
               | to black and never came back.
        
           | wannacboatmovie wrote:
           | EFI config screens should be text mode only, full-stop. So
           | they can easily be used over serial console redirection.
           | 
           | Ran into one recently that was high-rez graphical. It needed
           | a USB mouse to change critical settings because the tab order
           | for the onscreen widgets didn't work.
           | 
           | Anyone responsible for creating graphical EFI config screens
           | should stop writing software for the good of humanity.
        
             | jwells89 wrote:
             | Even for text-only I'd prefer native rez if possible to
             | reduce scrolling, label truncation, etc.
             | 
             | That said yes, there's no reason why there shouldn't be a
             | low rez textual fallback.
        
               | secondcoming wrote:
               | Then you'd need scaling and all that. Seems a bit
               | overkill for something people rarely use.
        
             | userbinator wrote:
             | Text-only BIOS setup was the norm for a long time before
             | the stupidly bloated EFI graphical stuff became common.
             | Even then, there were the better full-featured TUIs:
             | 
             | https://upload.wikimedia.org/wikipedia/commons/0/05/Award_B
             | I...
             | 
             | https://liveusb.files.wordpress.com/2010/05/awardbios-
             | firstb...
             | 
             | And the simplified crap with tabs that often came with
             | prebuilt PCs but later seems to have spread to others too:
             | 
             | https://cdn.staticneo.com/a/Intel_Sandy_Bridge_Z68_P67/S%20
             | B...
        
           | tripdout wrote:
           | My old AM3+ motherboard has an option for full screen boot
           | logo, and it starts in full HD, continuing with systemd boot,
           | all in 1080p.
           | 
           | I thought this wasn't really a problem anymore.
        
             | JasonSage wrote:
             | This is fine if you have a 1080p monitor. I was impressed
             | when this first happened to me, now on an ultrawide monitor
             | it's back to being not great.
             | 
             | I do recall my last motherboard had an option for a splash
             | which was centered in a black screen, so you could
             | basically display it at native resolution with no
             | stretching and it would look great and seamless. I wish
             | every motherboard had that splash option now.
        
             | vondur wrote:
             | Ha, back in the day when I was a student assistant in a
             | campus computer lab, we flashed the BIOS boot screen with a
             | full screen image of Darth Maul. The staff person who
             | oversaw us was not amused. (This was in the Pentium 3 era
             | IIRC)
        
           | AshamedCaptain wrote:
           | By the time my Dell monitor finally wakes from sleep,
           | finishes negotiating whatever crap DisplayPort has to
           | negotiate these days, and starts actually displaying frames,
           | the computer has long since finished booting and is already
           | idling at the desktop.
        
           | dm319 wrote:
           | My Amiga in the 1990s seemed to do a pretty good job at boot.
        
           | tomxor wrote:
           | At least it works. I find low-res bios screens reassuring...
           | something I can depend on.
        
       | mattchamb wrote:
       | Not sure if related, but my 2020 M1 macbook air bricked a week or
       | so after upgrading to Sonoma. I was suspicious if this was
       | related to the update. Luckily the logic board was replaced for
       | free under warranty laws here, though it put me off switching to
       | iphone which I was a day away from doing.
        
         | bscphil wrote:
         | Upgrades bricking hardware seems to be a common failure mode
         | for macOS. For example Big Sur bricked a bunch of 2013 and 2014
         | MBPs: https://www.macrumors.com/2020/11/15/macos-big-sur-
         | update-br...
         | 
         | I was affected by this and like many users the problem was
         | fixed after replacing the I/O board. In my case, I did it
         | myself using a $10 part from Ebay since the machine was well
         | out of warranty at that point.
        
           | miles wrote:
           | From comments #736 and #747 attached to the forum post you
           | kindly shared, it sounds like simply disconnecting and
           | reconnecting the I/O board may be sufficient (found those
           | comments linked in #831):
           | 
           | https://forums.macrumors.com/threads/macos-big-sur-update-
           | br...
           | 
           | https://forums.macrumors.com/threads/macos-big-sur-update-
           | br...
           | 
           | https://forums.macrumors.com/threads/macos-big-sur-update-
           | br...
        
             | fifteen1506 wrote:
             | And this is why there will never be a Year of the Linux
             | Desktop -- no-one wants to have to depend on forum posts to
             | fix these kind of issues.
             | 
             | /troll
        
               | coldtea wrote:
               | Why the "/troll"? You're 100% right non-ironically: the
               | problem being that on Linux the need to consult forum
               | posts to fix these kind of issues is way more frequent
               | than in macOS.
        
               | fsflover wrote:
               | On Linux it's as rare as on MacOS, _if you buy
               | preinstalled_.
        
               | Wowfunhappy wrote:
               | This issue in GP is unrelated to Linux, it happens on
               | single-boot macOS.
        
         | teaearlgraycold wrote:
         | Seems like a weird rationale. Any manufacturer is going to have
         | its share of software and hardware issues.
        
         | windowsrookie wrote:
         | The logic Board failed in my 2020 M1 Air as well. Opened the
         | lid one day, and it wouldn't power on. I have AppleCare on it,
         | otherwise it would have been a $500 repair.
         | 
         | About two weeks ago I'm sitting in a hotel room with the air on
         | bed with the lid open. I grab it by the screen to slide it
         | closer to me and the screen shatters from the light pressure of
         | my finger.
         | 
         | There are instances of both these things happening to the Air
         | all over the internet. At first I really liked the M1 Air, but
         | it has now proven too unreliable for me.
        
           | theodric wrote:
           | My 2020 M1 Air generally requires a hard reboot if left
           | closed and on a charger overnight, but that's been the worst
           | of it until now (besides the rapidly degrading battery that
           | seems calibrated to hit 79% a month after my AppleCare+
           | expires, while my 2015 Air's is still going strong).
           | 
           | Premium(tm)
        
         | aetherspawn wrote:
         | FWIW I have been using iPhones for 10+ years and not once has
         | an update ever failed or had any issues.
         | 
         | But my Google Pixel phone used to brick itself all the time, I
         | think twice in the two years I had it.
        
       | bitigchi wrote:
       | I am somewhat glad that there is a 3rd party that actively helps
       | finding macOS issues.
        
       | jiripospisil wrote:
       | > Do not let them charge you any money for it. This is a problem
       | Apple caused, and purely a software issue. If the technicians
       | claim there is hardware damage, they are wrong.
       | 
       | Good luck with that.
        
         | crazygringo wrote:
         | The Apple Store is usually great with this stuff.
         | 
         | If there's a documented problem that affects your hardware
         | model and the given software versions, they're extremely
         | unlikely to try to charge you for anything.
        
           | baz00 wrote:
           | If it's not documented and you have a problem then you are
           | usually shit out of luck. The early days of butterfly
           | keyboards was hell for a lot of people. I managed to get mine
           | back to them for a full refund 3 days after I got it thank
           | fuck.
        
           | saagarjha wrote:
           | Documented by whom? Are you going to show a marcan post to
           | then and claim it's an Apple issue?
        
         | SpaceManNabs wrote:
         | I didn't have much trouble. When MacbooksAir 2011 version had
         | those SSD hardware failures, I told multiple classmates of mine
         | about the hardware failure page and they got the repairs for
         | free instead of spending $800.
        
       | asylteltine wrote:
       | I'm an apple fanboy and let me be the first to say their SDLC
       | since the pandemic has been AWFUL. I have never had so many bugs
       | with apple devices. And I'm not talking about giant catastrophic
       | bugs you would expect with windows or Linux. I mean little
       | things, like random phone reboots, overheating, my mac restarting
       | when I wake up from sleep, internet issues, etc. They need a
       | shake up and to stop focusing on all these features NO ONE uses.
       | Can one person tell me they use the features they just announced?
       | Nobody even knows you can edit an iMessage still.
        
         | aetherspawn wrote:
         | I agree, I started buying some Macbooks for work and was
         | horrified when the Launchpad just wouldn't open on a brand new
         | Mac.
         | 
         | Like, you press Launchpad, and it just ... doesn't open.
         | sometimes. This kind of rancid stuff you would expect on
         | Windows but it never used to happen on OS X.
        
       | vbezhenar wrote:
       | Today I had to DFU restore my macbook because I wanted to
       | reinstall it, but built-in restore over the web did not work. My
       | base system was 13.2, it downloads all the files for 13.6, it
       | filled bar to 100% and then spewed error.
       | 
       | It's obvious that it's some incompatibility between 13.2 base
       | system and 13.6 install. Apple quality is atrocious these days.
       | One would have thought they would test the most basic scenarios
       | before releasing their x.6 software.
       | 
       | And worse of all, there's no official (or even unofficial, at
       | least I wasn't able to find one) way to create USB boot installer
       | without another Mac or to DFU restore Mac without another Mac. Do
       | they think I live in Apple Store? I don't have other Mac. I was
       | able to DFU restore with libimobiledevice, god bless its creator,
       | but it really should not happen. Windows or Linux are so much
       | more transparent compared to macOS.
        
         | baz00 wrote:
         | Yeah the Apple bootloader and restore stuff scares the shit out
         | of me. The network access requirement, firmware on SSD and
         | hardware lock are always lurking waiting for the most
         | inconvenient time to go wonky when I hose something.
         | 
         | Conversely windows, just got a USB stick in the drawer I can
         | boot off.
        
         | jamesfmilne wrote:
         | Yes same here. I did install then uninstall Avahi Linux a year
         | or so ago, but now I can't upgrade past 12.6.
         | 
         | I'll need to get an external drive, back everything up, then do
         | a DFU restore on my M1 Max MBP to get it upgraded to Sonoma.
        
       | alberth wrote:
       | Abstraction Layers.
       | 
       | We've gotten to point with the huge number of abstraction layers
       | (and now AI as well) that troubleshooting what causes system to
       | do what it did, has become so unwieldily difficult to diagnosis.
        
         | jahewson wrote:
         | This doesn't seem to be the problem here? It's an issue of
         | having a combinatorial number of versions to test when
         | upgrading software and firmware.
        
       | mstep wrote:
       | does anyone have info if this is fixed in ventura 13.6.1?
       | https://support.apple.com/de-at/HT213985
        
       | cramjabsyn wrote:
       | This is exactly why I lag one major version behind the latest.
        
         | als0 wrote:
         | Well, this also affects the previous major version, macOS
         | Ventura 13.6
        
           | supportengineer wrote:
           | This is exactly why I lag two or three versions behind the
           | latest.
        
             | formerly_proven wrote:
             | This is why I'm still using RHEL 7.
        
           | silverwind wrote:
           | Just don't upgrade to any version ending in 0.
        
         | theodric wrote:
         | This is why I'm still on Big Sur-- it mostly works!
        
           | Apocryphon wrote:
           | One of my machines is still on Mojave- my 32-bit games still
           | work!
        
       | nusaru wrote:
       | > macOS Ventura 13.6
       | 
       | Well dang, I just upgraded yesterday, too. Fingers crossed that
       | nothing breaks...
        
       | cleansingfire wrote:
       | Only affects Apple silicon chips (intel unaffected) with
       | ProMotion display. Just a quick Exit clause for people with older
       | machines.
        
       | JohnMakin wrote:
       | Lost a workstation to this last week. infuriating.
        
       | KingLancelot wrote:
       | I think my 2014 MacBook on MacOS 12.5 was affected by this too.
       | 
       | I had Ubuntu installed in a second partition and it refuses to
       | boot ever since I installed 12.5.1 on it.
        
       | tempodox wrote:
       | Holy fuck, thanks for the warning! I'm just glad I didn't upgrade
       | to 13.6 yet. And installing Sonoma on a second volume to try it
       | out is also out of the picture for the foreseeable future.
       | Apple's OSs seem to get worse with every turn. Maybe I shouldn't
       | touch Sonoma at all. What's the point on an Intel Mac anyway?
        
       | SpaceManNabs wrote:
       | This seems like a very unusual bug by Apple standards. Makes me
       | consider upgrading to new macbooks...
        
         | dgellow wrote:
         | At this point it's kind of common knowledge to wait a while
         | before upgrading macOS to latest major version. I don't
         | remember a major update that didn't come with its own set of
         | problems.
        
       | da768 wrote:
       | Can something be done using VoiceOver boot mode? I've already
       | recovered macs stuck on 0 brightness after an upgrade with
       | that... Can't find the documentation now, but it definitely
       | exists.
        
       | jug wrote:
       | I wonder if this is behind a failed Sonoma upgrade I saw on eBay
       | today; Mac Mini M2 Pro sold as-is for a very decent price, about
       | $300-$400 off despite from this year. :) Seller didn't know what
       | was wrong with the Mac, only that it happened during Sonoma
       | upgrade and this sounds mighty suspicious for such a new machine
       | if it's widespread.
        
       | dharma1 wrote:
       | Had another weird refresh rate bug with 14.1 - external display
       | doesn't have a HDR option in settings at 120hz anymore - only
       | works with HDR if I change the refresh rate 100hz or lower. Was
       | fine in earlier MacOS
        
       | doubloon wrote:
       | in 30 years we have gone from the idea that your computer could
       | accidentally brick your monitor, to the idea that your monitor
       | could accidentally brick your computer.
       | 
       | https://trixter.oldskool.org/2006/02/02/computing-myth-1-sof...
        
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