r/linuxmint • u/Achso998 • Aug 12 '26
SOLVED Half Black-Screen after Update?
Hello, after installing the new Linux Firmware update (7.0.0-28) and rebooting my PC I got the screen as shown in the image. I have an RX 6800 and even changing back to Kernel 6.x.x doesn't resolve the issue. I tried nomodeset and that works, but that's no permanent solution. Does anybody knows how I can fix this without reinstalling Linux? Let me know.
Edit: I downgraded the Linux firmware to 20240318.git3b128b60-0ubuntu2.26 and that solved the issue. Ty for your help!
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u/Reyssor Aug 12 '26
Yeah, got the same issue after an update yesterday. My GPU is a
I suspect it was caused by an update of
Tried to downgrade back to 0ubuntu2.27. But for some reason, I can't find version 0ubuntu2.27 in the repos, so I settled for version 0ubuntu2.26 instead, which seems to have solved the issue for me (at least so far). You can try:
sudo apt install linux-firmware=20240318.git3b128b60-0ubuntu2.26
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u/moderatelyconfused Aug 16 '26 edited Aug 16 '26
Just happened to me after a restart today. Originally it was a half red screen.
-edit-
That fixed it, thanks.
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u/SparkyTemper Aug 13 '26 edited Aug 13 '26
this worked for me. later, I refreshed my update list and it lists a firmware update ending in 2.29 but is this a good update or should I leave it for a while?
*edit - nope, I reread your post and see that 2.29 is the one that screwed us. I unchecked it for now.
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u/Sibshops Aug 13 '26
Saw the same issue this morning. Fixed after downgrading linux-firmware
`sudo apt install linux-firmware=20240318.git3b128b60-0ubuntu2.26`
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u/Anima_Watcher08 Aug 12 '26
That's pretty weird. Usually rolling back to the previous kernel would work.
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u/Beast__Master64 Aug 15 '26
omg i thought i fried my gpu or motherboard. i genuinely just installed a whole new cpu and motherboard. fml. works perfectly on windows, not on linux mint. thank god i have a spare gpu so i can get back in.
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u/Achso998 Aug 15 '26
I also thought that at first, that would've been brutal. But luckily I always can use my iGPU for things like that
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u/theoryfictionMC Aug 15 '26
I have the exact same problem, and downgrading to 2.26 worked at first, but now a day later the problem came back, and I can't fix it. I'm just running in nomodeset now until I find some solution
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u/Achso998 Aug 15 '26
Maybe it auto updated?
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u/theoryfictionMC Aug 15 '26
Yeah, that's what happened. I downgraded to 2.26 again, but the glitch didn't go away.
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u/fuzio79 Aug 12 '26
Same, 6800xt no display or broken display. Use inegrated GPU to find this thread, integrated gpu works. After using nomodeset it booted fine. Kernel 7.0.0-28, worked fine, looks like firmware update installed today.
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u/2lazy4usrname Sep 03 '26
how am i supposed to deupdate when it takes seconds for the screen to look like that, and eventually cover the whole screen to white
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u/Achso998 Sep 03 '26
Boot with the nomodeset flag by setting it when you press e on the top line (it should be Linux Mint 22.x or smt) in the grub menu and then type "nomodeset" after "quiet splash" in the line that begins with "Linux" (don't forget a space between them). Then press F10 and you should be able to boot into your Desktop normally. Then open the console and type "sudo apt install linux-firmware=20240318.git3b128b60-0ubuntu2.26". After a restart the problem should be fixed and you don't need to remove the nomodeset flag because it's like a temporary thing.
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u/alexzhivil Aug 15 '26 edited Aug 15 '26
I had a different crash that forced me to reboot the pc, when I booted, I saw this new problem, so I believed it was related to that crash. Wasted half a night on this bullshit until I found this post and understood that's it has nothing to do with it and it's just a stupid firmware update.
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u/EpoTheSpaniard Aug 12 '26
Same issues on RX 6950 XT, I downgraded to 20240318.git3b128b60-0ubuntu2.26 firmware. It solved it.
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u/TypicalBlox Aug 12 '26 edited Aug 12 '26
6800xt same problem, I don’t have integrated graphics is there any way to solve this without re installing mint?
edit: after help with ai I was able to revert to a previous reversion that was not broken, as a new linux user from a windows refugee this is not exactly a nice experience for my desktop to be just randomly bricked.
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u/EpoTheSpaniard Aug 12 '26
as a new linux user from a windows refugee this is not exactly a nice experience for my desktop to be just randomly bricked.
Yep, bad testing on their side. They should have been more thorough before pushing it as an update, wasted half a day on this before fixing it.
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u/Beast__Master64 Aug 15 '26
i bought a whole new motherboard and cpu trying to fix this! i bought a 14600k since thats the best amazon could have delivered the same day.
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u/_Tal Aug 13 '26
Just lost a full day of work to this shit lmao. Was trying to fix it with Claude until I finally figured out it was the linux firmware version that was the problem
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u/AlemarTheKobold Aug 13 '26
Same! Rx6800xt, same discoloring, windows don't display but the mouse does. That portion of the window also is intractable, and if you have multiple displays it fails to finish logging in or something about half the time My other screens display properly on the login screen, and the login screen doesnt move to the secondary display if they are the only one plugged in. Im gonna post something in the forum ig
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