[Bug 1900854] Re: radeon: GPU lockup when restarting a video on RV730

Philippe Coval, one thing that would be helpful is if you could make a
short video from a cell phone of the computer screen right before the
problem begins, as it starts ,and little bit as it is happening. This
helps developers root cause the issue better.

** Tags added: eoan

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https://bugs.launchpad.net/bugs/1900854

Title:
radeon: GPU lockup when restarting a video on RV730

Status in Linux:
Unknown
Status in linux package in Ubuntu:
Triaged

Bug description:
To reproduce type at a terminal or open with same file locally:
mpv https://conf.tube/download/videos/ea60f030-90c1-4e8e-9782-bef14dd3b1d1-1080.mp4

Stop the video by clicking Esc. Run again and the process will be
stuck on creating window frame for a while, then the video will start
to show, but the video's first frame looks like blinking in this
triangle mess. The system is still usable, and audio is still playing.

Log when issue occurred:
https://launchpadlibrarian.net/502954026/CurrentDmesg.txt

---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: rzr 4431 F.... pulseaudio
 /dev/snd/pcmC0D0p: rzr 4431 F...m pulseaudio
 /dev/snd/controlC1: rzr 4431 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: KDE
DistroRelease: Ubuntu 20.10
IwConfig:
 lo no wireless extensions.

 enp2s0 no wireless extensions.

 docker0 no wireless extensions.
MachineType: Dell Inc. Precision T1500
Package: linux (not installed)
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-25-generic root=UUID=036d3d8c-98d4-48ec-a18b-dce21dcf0bb5 ro initrd=initrd.gz splash quiet vt.handoff=7
ProcVersionSignature: Ubuntu 5.8.0-25.26-generic 5.8.14
RebootRequiredPkgs:
 linux-image-unsigned-5.9.1-050901-generic
 linux-base
 linux-image-unsigned-5.9.1-050901-lowlatency
 linux-base
RelatedPackageVersions:
 linux-restricted-modules-5.8.0-25-generic N/A
 linux-backports-modules-5.8.0-25-generic N/A
 linux-firmware 1.190
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
Tags: groovy
Uname: Linux 5.8.0-25-generic x86_64
UpgradeStatus: Upgraded to groovy on 2020-10-13 (8 days ago)
UserGroups: adm cdrom dialout dip docker lpadmin netdev plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 01/13/2011
dmi.bios.release: 8.15
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.4.0
dmi.board.name: 0XC7MM
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.4.0:bd01/13/2011:br8.15:svnDellInc.:pnPrecisionT1500:pvr00:rvnDellInc.:rn0XC7MM:rvrA00:cvnDellInc.:ct3:cvr:
dmi.product.family: 0
dmi.product.name: Precision T1500
dmi.product.sku: 0
dmi.product.version: 00
dmi.sys.vendor: Dell Inc.

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