Freezing at the login screen/after login happening also in Ubuntu
20.04.2 LTS. I had to reinstall the OS in this laptop and I went for the
LTS version.
5.8.0-63-generic => OK
5.11.0-25-generic => System frozen after login
5.11.0-27-generic => System frozen after login
** Summary changed:
- Compu
Public bug reported:
Just upgraded from 20.10 to 21.04 and the system became unusable.
First login after upgrade, screen flicked every 6 seconds noticeably
making the system unusable. Tried to log out, system froze.
Several more attempts, same flicking issue. Tried to use xorg instead of
wayland
Since I've upgraded to 16.04 I've started to experience these system crashes:
* Sometimes, when I plug/unplug an external hdmi monitor.
* Sometimes, when I shutdown the machine.
Haven't reported those as they happen a bit randomly. I am not able to
reproduce them at my will.
The one reported here
** Tags added: kernel-fixed-upstream
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https://bugs.launchpad.net/bugs/1585081
Title:
Switching user freezes system
Status in linux package in Ubuntu:
Incomplete
Bug des
Public bug reported:
Just doing this my system freezes:
1. Click on the top right gear icon.
2. Select a different user account.
Login screen appears briefly, then black screen and the system is death:
BUG: unable to handle kernel NULL pointer dereference at 0248
IP: [] amdgpu_vm_gr
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1501205
Title:
Cannot boot full disk encrypted system, impossible to t
I cannot see that kernel, I've added:
deb http://gb.archive.ubuntu.com/ubuntu/ vivid-proposed restricted main
multiverse universe
to the sources.list.
Then:
$ sudo apt-get update
$ apt-cache search linux | grep "3.19.8"
And that returns nothing.
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Mainline kernel worked for me.
** Tags added: kernel-fixed-upstream
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https://bugs.launchpad.net/bugs/1501205
Title:
Cannot boot full disk encrypted system, impossible to t
Public bug reported:
After last kernel upgrade (3.19.0-30-generic) I'm no longer able to
start the system.
1. Press power button.
2. System shows
Ignoring BGRT invalid status 0 (expected 1)
ACPI PCC Probe failed
Starting version 219
(AFAIK this text is the same when everything works)
3. System
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