[Common Issue Talk] Black screen when unlocking encrypted disk during boot

[psklenar (Petr Sklenar)]

This is a discussion topic for the following Common Issue:

Black screen when unlocking encrypted disk during boot

Problem When booting a system with LUKS disk encryption, the screen might be black (blank) during password entry or exhibit graphical glitches (frozen, corrupt, flickering, etc). The system may look like it has frozen or got hung, but it hasn’t - even if the password prompt isn’t visible, you can still type the password and press Enter to continue booting normally. The screen is just not being displayed correctly. This seems to affect only systems running with integrated GPUs (Intel or AMD) and…

You can discuss the problem and its solutions here, but please note that debugging and technical feedback should primarily go to the issue trackers (e.g. Bugzilla) linked in the Common Issue, because that’s the place that developers watch, not here.

If there are any updates/changes/amendments for the Common Issue description, which you believe should be performed, please post it here.

[kparal (Kamil Páral)]

Please see the Common Issue for solution/workarounds:

Black screen when unlocking encrypted disk during boot

Problem When booting a system with LUKS disk encryption, the screen might be black (blank) during password entry or exhibit graphical glitches (frozen, corrupt, flickering, etc). The system may look like it has frozen or got hung, but it hasn’t - even if the password prompt isn’t visible, you can still type the password and press Enter to continue booting normally. The screen is just not being displayed correctly. This seems to affect only systems running with integrated GPUs (Intel or AMD) and…

[bettystrickland]

After switching to f44 from f43 (fresh install by .iso) and updating it i got this problem and none of these solved the issue “nomodeset” killed my external (main) monitor.

This was the solution for me

sudo  grubby --update-kernel=ALL args="amdgpu.dc=0"