FS#71609 - [firefox] artifacts on tab change

Attached to Project: Arch Linux
Opened by Arne Wörner (riddicc) - Sunday, 25 July 2021, 08:00 GMT
Last edited by Andreas Radke (AndyRTR) - Sunday, 10 October 2021, 20:00 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Jan Alexander Steffens (heftig)
Christian Hesse (eworm)
Architecture x86_64
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 2
Private No

Details

Description:
There are at least three kinds of artifacts/hangs on focus change:
1. The tab does not really close (there is still space for it in the tab bar, but the title is blank).
2. It takes seconds and/or at least one focus change until the tab shows properly (until then the old image is frozen).
3. There are lots of funny colored dots instead of a youtube.com video until one changes focus at least once.

Additional info:
* firefox 90.0.2-1 on
* ArchLinux with unpatched kernel 5.13.4-ARNE on an
* AMD A10 with a RX550 (POLARIS12, DRM 3.41.0, LLVM 12.0.1)
* i attached the coredump summary
* everything else runs fine and one can just restart firefox, when the artifacts and hangs become too bad...
* but: it is not so good when this happens with an active peertube tab, because: it lowers the multiplication factor...

Steps to reproduce:
1. start firefox
2. open youtube.com in two windows and multiple tabs
3. play a movie
4. wait
5. close some tabs and goto 2. (somewhen the artifacts will show up)
   bla (33.9 KiB)
This task depends upon

Closed by  Andreas Radke (AndyRTR)
Sunday, 10 October 2021, 20:00 GMT
Reason for closing:  Fixed
Additional comments about closing:  user comments: disappeared almost completely in firefox-91.
Comment by Arne Wörner (riddicc) - Sunday, 25 July 2021, 09:34 GMT
the title should be "artifacts on tab change"... and i cant find an edit button...
Comment by Jan Alexander Steffens (heftig) - Wednesday, 28 July 2021, 01:46 GMT
Are you using any MOZ_* variables?
Comment by Arne Wörner (riddicc) - Wednesday, 28 July 2021, 06:47 GMT
do u mean this?
> export|grep MOZ
declare -x MOZ_PLUGIN_PATH="/usr/lib/mozilla/plugins"
> ls /usr/lib/mozilla/plugins
IcedTeaPlugin.so libflashplayer.so libpipelight-silverlight5.1.so
Comment by Jan Alexander Steffens (heftig) - Wednesday, 28 July 2021, 11:27 GMT
Is this maybe a duplicate of  FS#71612 , i.e. a downgrade to kernel 5.12.x solves it?
Comment by Arne Wörner (riddicc) - Wednesday, 28 July 2021, 13:40 GMT
i downgraded kernel to 5.10.53 (since it is "longterm", while 5.12 is "EOL").
but the firefox-90 problems remained.
and only firefox behaves funny in my case.
Comment by Arne Wörner (riddicc) - Thursday, 12 August 2021, 08:31 GMT
firefox-91 has the same problem...
i just found that firefox makes a lot of output to the terminal, if u start it in a terminal...
i attached that output...
   bla.xz (1.8 KiB)
Comment by Arne Wörner (riddicc) - Monday, 16 August 2021, 14:05 GMT
firefox-91 works much more stable...
that problem only shows on a single webpage so far... possibly it uses some weird video processing things...
my firefox-91 for office purposes did not show those artifacts...
i think the bug disappeared...
Comment by Arne Wörner (riddicc) - Wednesday, 18 August 2021, 21:24 GMT
the GPU Process still crashes and dumps core due to TRAP:
Command Line: /usr/lib/firefox/firefox -contentproc -parentBuildID 20210810191153 -prefsLen 1 -prefMapSize 254057 -appdir /usr/lib/firefox/browser 200689 true gpu

but those artifacts are almost completely gone...
the core dumps happen twice or about twice daily...

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