Public bug reported:
Hi, I have recently swapped out an NV card for AMD one and with no other
changes this has started appearing.
After I leave my PC idle for +- 5-10 minutes I come back to a blank screen, and
if I switch to VT/tty and back then it just opens lightdm/slim(whatever is set
default at the time) and starts a new session, killing old one.
When I switch to VT/tty, I can see my old session/applications running
if I run htop, but they disappear if I login in new session.
If I switch to VT/tty and back without leaving my machine idle, then
it's working as expected.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-45-generic 5.4.0-45.49
ProcVersionSignature: Ubuntu 5.4.0-45.49-generic 5.4.55
Uname: Linux 5.4.0-45-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: david 5694 F.... pulseaudio
/dev/snd/controlC2: david 5694 F.... pulseaudio
/dev/snd/controlC1: david 5694 F.... pulseaudio
/dev/snd/pcmC1D0p: david 5694 F...m pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: i3
Date: Tue Sep 8 23:01:57 2020
InstallationDate: Installed on 2020-07-22 (48 days ago)
InstallationMedia: Ubuntu-Server 20.04 LTS "Focal Fossa" - Release amd64
(20200423)
MachineType: Dell Inc. Precision T5600
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-45-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro
RelatedPackageVersions:
linux-restricted-modules-5.4.0-45-generic N/A
linux-backports-modules-5.4.0-45-generic N/A
linux-firmware 1.187.3
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/21/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A18
dmi.board.name: 0GN6JF
dmi.board.vendor: Dell Inc.
dmi.board.version: A02
dmi.chassis.type: 7
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA18:bd06/21/2018:svnDellInc.:pnPrecisionT5600:pvr01:rvnDellInc.:rn0GN6JF:rvrA02:cvnDellInc.:ct7:cvr:
dmi.product.name: Precision T5600
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug focal uec-images
** Attachment added: "xorg log"
https://bugs.launchpad.net/bugs/1894911/+attachment/5408831/+files/Xorg.0.log.old
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https://bugs.launchpad.net/bugs/1894911
Title:
AMD GPU black screen after leaving computer idle
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