[Bug 1939592] Re: Login screen (gdm3) is purple blank after switching userA -> userB -> userA again

2021-10-18 Thread Launchpad Bug Tracker 
Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: gnome-shell (Ubuntu)
   Status: New => Confirmed

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Title:
  Login screen (gdm3) is purple blank after switching userA -> userB ->
  userA again

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[Bug 1939592] Re: Login screen (gdm3) is purple blank after switching userA -> userB -> userA again

2021-10-18 Thread Launchpad Bug Tracker 
Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: gdm3 (Ubuntu)
   Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1939592

Title:
  Login screen (gdm3) is purple blank after switching userA -> userB ->
  userA again

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[Bug 1939592] Re: Login screen (gdm3) is purple blank after switching userA -> userB -> userA again

2021-08-13 Thread Andrey Arapov 
** Description changed:

  Login screen (gdm3) is purple blank after switching userA -> userB ->
  userA again.
  
  Sometimes need to switch 5 times.. but definitely after around 5 times
  gdm3 breaks (it shows just a blank purple screen with the cursor).
  
  ## Workaround
  
  Ctrl+Alt+F3 (or F4.. F5...) until I get to the user I need to (and unlock the 
screensaver there).
  OR: switch to the console and run "exec sudo systemctl restart gdm3". ("exec" 
is not necessary but highly desirable from the security point of view, so there 
won't be a logged in session).
  
  ## Workaround 2
  
  To not use gdm3. There are alternatives such as sddm or ligthdm:
  
  sudo apt install sddm
  
  OR
  
  sudo apt install lightdm
  
- 
  Ctrl+Alt+F5 (drop to a console)
  sudo systemctl stop gdm3
  exec sudo systemctl start display-manager
- 
  
  ## Details
  
  arno@z390-linux:~$ dpkg -l gdm3
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name   Version Architecture Description
  
+++-==-===--=
  ii  gdm3   3.36.3-0ubuntu0.20.04.4 amd64GNOME Display Manager
  
  arno@z390-linux:~$ cat /proc/cmdline
  BOOT_IMAGE=/vmlinuz-5.11.0-25-generic 
root=UUID=a39515ec-3bed-493b-8286-3904a4aac9de ro quiet splash vt.handoff=7
  
  arno@z390-linux:~$ nvidia-smi
  Wed Aug 11 16:42:07 2021
  
+-+
  | NVIDIA-SMI 460.91.03Driver Version: 460.91.03CUDA Version: 11.2 
|
  
|---+--+--+
  | GPU  NamePersistence-M| Bus-IdDisp.A | Volatile Uncorr. ECC 
|
  | Fan  Temp  Perf  Pwr:Usage/Cap| Memory-Usage | GPU-Util  Compute M. 
|
  |   |  |   MIG M. 
|
  
|===+==+==|
  |   0  GeForce RTX 207...  Off  | :01:00.0  On |  N/A 
|
  |  0%   37CP817W / 215W |473MiB /  7979MiB |  1%  Default 
|
  |   |  |  N/A 
|
  
+---+--+--+
  
  
+-+
  | Processes:  
|
  |  GPU   GI   CIPID   Type   Process name  GPU Memory 
|
  |ID   ID   Usage  
|
  
|=|
  |0   N/A  N/A  2211  G   /usr/lib/xorg/Xorg 35MiB 
|
  |0   N/A  N/A 10496  G   /usr/lib/xorg/Xorg106MiB 
|
  |0   N/A  N/A 10626  G   /usr/bin/gnome-shell  157MiB 
|
  |0   N/A  N/A 16828  G   /usr/lib/xorg/Xorg 35MiB 
|
  |0   N/A  N/A 38063  G   ...A= --shared-files   80MiB 
|
  
+-+
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: gdm3 3.36.3-0ubuntu0.20.04.4
  ProcVersionSignature: Ubuntu 5.11.0-25.27~20.04.1-generic 5.11.22
  Uname: Linux 5.11.0-25-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset 
nvidia
  ApportVersion: 2.20.11-0ubuntu27.18
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Aug 11 16:37:35 2021
  InstallationDate: Installed on 2020-09-26 (318 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)

** Description changed:

  Login screen (gdm3) is purple blank after switching userA -> userB ->
  userA again.
  
  Sometimes need to switch 5 times.. but definitely after around 5 times
  gdm3 breaks (it shows just a blank purple screen with the cursor).
  
  ## Workaround
  
  Ctrl+Alt+F3 (or F4.. F5...) until I get to the user I need to (and unlock the 
screensaver there).
  OR: switch to the console and run "exec sudo systemctl restart gdm3". ("exec" 
is not necessary but highly desirable from the security point of view, so there 
won't be a logged in session).
  
  ## Workaround 2
  
  To not use gdm3. There are alternatives such as sddm or ligthdm:
- 
- sudo apt install sddm
- 
- OR
  
  sudo apt install lightdm
  
  Ctrl+Alt+F5 (drop to a console)
  sudo systemctl stop gdm3
  exec sudo systemctl start display-manager
  
  ## Details
  
  arno@z390-linux:~$ dpkg -l gdm3
  Desired=Unknown/Install/Remove/Purge/Hold
  |

[Bug 1939592] Re: Login screen (gdm3) is purple blank after switching userA -> userB -> userA again

2021-08-11 Thread Daniel van Vugt 
** Also affects: gnome-shell (Ubuntu)
   Importance: Undecided
   Status: New

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https://bugs.launchpad.net/bugs/1939592

Title:
  Login screen (gdm3) is purple blank after switching userA -> userB ->
  userA again

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[Bug 1939592] Re: Login screen (gdm3) is purple blank after switching userA -> userB -> userA again

2021-08-11 Thread Andrey Arapov 
** Description changed:

  Login screen (gdm3) is purple blank after switching userA -> userB ->
  userA again.
  
  Sometimes need to switch 5 times.. but definitely after around 5 times
  gdm3 breaks (it shows just a blank purple screen with the cursor).
  
  ## Workaround
  
  Ctrl+Alt+F3 (or F4.. F5...) until I get to the user I need to (and unlock the 
screensaver there).
  OR: switch to the console and run "exec sudo systemctl restart gdm3". ("exec" 
is not necessary but highly desirable from the security point of view, so there 
won't be a logged in session).
  
+ ## Workaround 2
+ 
+ To not use gdm3. There are alternatives such as sddm or ligthdm:
+ 
+ sudo apt install sddm
+ 
+ OR
+ 
+ sudo apt install lightdm
+ 
+ 
+ Ctrl+Alt+F5 (drop to a console)
+ sudo systemctl stop gdm3
+ exec sudo systemctl start display-manager
+ 
+ 
+ ## Details
+ 
  arno@z390-linux:~$ dpkg -l gdm3
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name   Version Architecture Description
  
+++-==-===--=
  ii  gdm3   3.36.3-0ubuntu0.20.04.4 amd64GNOME Display Manager
  
- arno@z390-linux:~$ cat /proc/cmdline 
+ arno@z390-linux:~$ cat /proc/cmdline
  BOOT_IMAGE=/vmlinuz-5.11.0-25-generic 
root=UUID=a39515ec-3bed-493b-8286-3904a4aac9de ro quiet splash vt.handoff=7
  
- arno@z390-linux:~$ nvidia-smi 
- Wed Aug 11 16:42:07 2021   
+ arno@z390-linux:~$ nvidia-smi
+ Wed Aug 11 16:42:07 2021
  
+-+
  | NVIDIA-SMI 460.91.03Driver Version: 460.91.03CUDA Version: 11.2 
|
  
|---+--+--+
  | GPU  NamePersistence-M| Bus-IdDisp.A | Volatile Uncorr. ECC 
|
  | Fan  Temp  Perf  Pwr:Usage/Cap| Memory-Usage | GPU-Util  Compute M. 
|
  |   |  |   MIG M. 
|
  
|===+==+==|
  |   0  GeForce RTX 207...  Off  | :01:00.0  On |  N/A 
|
  |  0%   37CP817W / 215W |473MiB /  7979MiB |  1%  Default 
|
  |   |  |  N/A 
|
  
+---+--+--+
-   
 
+ 
  
+-+
  | Processes:  
|
  |  GPU   GI   CIPID   Type   Process name  GPU Memory 
|
  |ID   ID   Usage  
|
  
|=|
  |0   N/A  N/A  2211  G   /usr/lib/xorg/Xorg 35MiB 
|
  |0   N/A  N/A 10496  G   /usr/lib/xorg/Xorg106MiB 
|
  |0   N/A  N/A 10626  G   /usr/bin/gnome-shell  157MiB 
|
  |0   N/A  N/A 16828  G   /usr/lib/xorg/Xorg 35MiB 
|
  |0   N/A  N/A 38063  G   ...A= --shared-files   80MiB 
|
  
+-+
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: gdm3 3.36.3-0ubuntu0.20.04.4
  ProcVersionSignature: Ubuntu 5.11.0-25.27~20.04.1-generic 5.11.22
  Uname: Linux 5.11.0-25-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset 
nvidia
  ApportVersion: 2.20.11-0ubuntu27.18
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Aug 11 16:37:35 2021
  InstallationDate: Installed on 2020-09-26 (318 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1939592

Title:
  Login screen (gdm3) is purple blank after switching userA -> userB ->
  userA again

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