** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Package changed: linux (Ubuntu) => linux-hwe-5.8 (Ubuntu)
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Although I don't fully understand the bug description, I do wonder if
there's a Braswell regression given bug 1935901 also.
** Summary changed:
- HDMI not working properly
+ [Braswell] HDMI not working properly
** Package changed: xorg (Ubuntu) => mutter (Ubuntu)
** Also affects: xorg-server
Hi. I did verify the image. Now, I manage to get through the black
screen by using win+fn+f2 to go to tty2 then win+fn+f1 to go to login
screen. Sometimes if it stuck at black screen, I would use the method
mentioned above. Sometimes it manage to get to the login screen
directly. But I do think
Please pass kernel parameter "amdgpu.backlight=0" for workaround.
Kernel bug is already filed, and maintainer is notified:
https://bugzilla.kernel.org/show_bug.cgi?id=213715
** Bug watch added: Linux Kernel Bug Tracker #213715
https://bugzilla.kernel.org/show_bug.cgi?id=213715
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You
Obviously GRUB and YouTube shouldn't be sharing the same screen. That
looks like a driver/browser chroma-key bug. What browser were you using?
I'm also not totally confident that's even the main issue you were
describing. If it's not then please be sure to open a second bug about
the other issue.
You have been subscribed to a public bug:
There was a glitch as I was watching a youtube video that imprinted a
still image on the screen with transparent vertical stripes. Restarted
the computer and the same image was imprinted behind the GRUB boot-
loader menu during start up. Unusual behavior
Per comment #3 we really just need to know more about the call stack to
identify which of the existing bugs this is. If you can't get a formal
crash report from the Xorg process then you can just subscribe to {bug
1421808, bug 1787332, bug 1787338}.
Communicating with NVIDIA will also help,
Yes Ubuntu and GNOME sessions are really the same thing, just with
different themes.
My only suggestion would be to finish testing:
sudo apt install unity-session
sudo apt install xfce4-session
sudo apt install cinnamon-session
so that we can rule in or out 'mutter' being the cause here,
Thanks for the bug report. Please:
1. Run this command to send us more system info:
apport-collect 1894046
2. If you have 'tlp' installed then try uninstalling it. It is known to
cause bugs like this.
3. Install 'powertop' and try using that to disable power savings mode
for the affected
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1931522
This is still an issue all the way up to 21.04. Debian finally turned on
dummy_hcd in their kernel fairly recently:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=868771
https://salsa.debian.org/kernel-team/linux/-/commit/1ae90a1f1c938c83abadfb80733a07a1e314a0b5
** Bug watch added: Debian Bug
Yes i have upgraded the bios version but the problem still persists.
Current bios version: FHCN41WW. It's working on windows.
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https://bugs.launchpad.net/bugs/1933373
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