I am also affected on Ubuntu MATE.
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https://bugs.launchpad.net/bugs/1900722
Title:
Reinstall Ubuntu fails with an existing ESP
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Here is the workaround I employed:
1. Open the Disks app to determine which partition is the EFI partition. It
will be labeled "EFI System" under "Partition type."
1. Instead of selecting "reinstall" and getting an error, select "something
else" to get manual partitioning.
2. Make sure the
Today I had some more time to play around with my computer so I tried
testing your hypothesis. I rebooted into my current software
configuration with no workarounds as a control, and reproduced the bug
as expected. Then I downgraded my system to the Marco version from 19.10
(1.22.3) by downloading
Public bug reported:
Today I upgraded from Ubuntu MATE 19.10 to 20.04. After doing so, Ubuntu boots
normally to the display manager (login screen) as expected. But once I log in,
everything on the screen is cut up into horizontal slices, with each slice
offset farther right than the slice
A quick update. I tested to see if kernel version affects this bug, and
it appears not to. I booted up the previous installed kernel on my
system (5.3.0-55) without the default options and got the exact same
issue. Likewise, using the old kernel with nomodeset eliminates the
corruption at the
Now this is where it gets weird. Since I have Ubuntu MATE, I installed
the ubuntu-desktop package to get the default GNOME environment. I kept
my display manager as LightDM in case that's relevant.
Then I rebooted and tested all 3 desktop modes with default kernel
options. As expected, MATE is
I've discovered some useful info about this bug. First, there's a forum
thread about it with lots of good info: https://ubuntu-
mate.community/t/20-04-display-issues-with-amd-gpu/21648/37
Second, a new workaround. To recap, the first workaround I found was
booting with nomodeset, but that
