Oh and it can be a bug in X, please give Wayland a try.
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https://bugs.launchpad.net/bugs/1871721
Title:
Second Monitor on HDMI blank screen with Nvidia & Ubuntu 20.04? (ASUS
Let's suppose it doesn't use reverse prime, please test latest drm-tip kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/current/
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Update: If I adjust the minimum resolution, sometimes appears the second
desktop, but instantly disappear then.
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https://bugs.launchpad.net/bugs/1871721
Title:
Second Monitor on
** Attachment added: "The screens, how I order them before I click apply."
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1881498/+attachment/5379186/+files/Screenshot%20from%202020-05-31%2017-22-04.png
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Public bug reported:
Errors created when trying to install TeamViewer on Jetson Nano
ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: libegl-mesa0 19.2.8-0ubuntu0~18.04.3 [modified:
usr/share/glvnd/egl_vendor.d/50_mesa.json]
Uname: Linux 4.9.140-tegra aarch64
.tmp.unity_support_test.0:
** Description changed:
suspend to ram crashes amdgpu.
System is still accessible via SSH after resume from standby.
Happens when X is running (gdm/gnome with 3d acceleration) and also when X is
stopped.
+ Also the computer never really goes into standby. The cpu fan is running
+ all
Public bug reported:
Since I upgraded from Ubuntu 19.10 to 20.04 my multi monitor setup is
broken. I put the screens into the shape of an H. The center screen is
in landscape and to each side one screen in portrait/pivot orientation.
I expected to rotate the virtual screens of the outer monitors
Public bug reported:
suspend to ram crashes amdgpu.
System is still accessible via SSH after resume from standby.
Happens when X is running (gdm/gnome with 3d acceleration) and also when X is
stopped.
I'll attach the dmesg output of several attempts.
This is the hardware:
journalctl attached.
I had a few attempts at logging in at 11:37 or so, which gave me no clue
as to what was going on, so I moved to a TTY and poked around for a bit.
Googling took me to https://ubuntu-mate.community/t/20-04-workaround-
for-xorg-crashes-to-login-prompt-in-virtual-machines/21368.
Solved this (and some other issues) for me by installing the mainline kernel
Used the "mainline" script for that
e.g. with instructions from
https://www.linuxuprising.com/2018/10/2-utilities-to-install-latest-kernel-in.html
** Changed in: xorg (Ubuntu)
Status: New => Invalid
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** Package changed: ubuntu => xorg (Ubuntu)
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https://bugs.launchpad.net/bugs/1881462
Title:
Brightness settings don't work on Lenovo Ideapad 5 15ARE05
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You have been subscribed to a public bug:
After installation, the notebook brighness buttons change brightness
settings, but settings are not applied on the screen.
In the log files I can see something like this:
Failed to start Load/Save Screen Backlight Brightness of backlight:amdgpu_bl0.
*** This bug is a duplicate of bug 1809407 ***
https://bugs.launchpad.net/bugs/1809407
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: nvidia-graphics-drivers-418 (Ubuntu)
Status: New => Confirmed
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*** This bug is a duplicate of bug 1809407 ***
https://bugs.launchpad.net/bugs/1809407
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: gnome-shell (Ubuntu)
Status: New => Confirmed
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