Severe graphical glitches when restoring the window

[Leonardo Müller]

When restoring the Firefox window, sometimes graphical glitches occur before the window content appears properly. Sometimes it is just a tiny bit of the previous content on the Firefox window that was rendered correctly, sometimes it's a severely corrupted screen. The attached screenshot shows the second case.

Steps to reproduce:
1) Have a Firefox window open;
2) Minimize all Firefox windows;
3) Try to restore and minimize one window repeatedly;
4) Notice graphical corruption.

I still haven't figured out what is causing this issue, but sometimes it will stop happening, and later it starts again. It seems to be retaining some content that was open before.

I'm reporting this against Firefox because it is the only program where I have noticed this particular problem, but this may a problem with something else (it could be xfwm4, for example).

While the attached files have more details, here are some system specifications.

OS: Xubuntu 22.04;
CPU: Intel Core i3-6100U;
GPU: Intel HD Graphics 520;
Mesa: 21.2.6;
Xorg: intel 2.99.917;
RAM: 20 GB.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: firefox 95.0+build1-0ubuntu1
ProcVersionSignature: Ubuntu 5.15.0-13.13-generic 5.15.5
Uname: Linux 5.15.0-13-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.11-0ubuntu74
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: usuario 2024 F.... pipewire
                      usuario 2025 F.... wireplumber
 /dev/snd/pcmC0D0p: usuario 2024 F...m pipewire
 /dev/snd/seq: usuario 2024 F.... pipewire
BuildID: 20211129150630
CasperMD5CheckResult: unknown
Channel: Unavailable
CurrentDesktop: XFCE
Date: Mon Dec 6 13:44:43 2021
DefaultProfileExtensions: extensions.sqlite corrupt or missing
DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
DefaultProfileLocales: extensions.sqlite corrupt or missing
DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:363
DefaultProfilePrefSources: prefs.js
DefaultProfileThemes: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2017-06-13 (1636 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
IpRoute:
 default via 192.168.0.1 dev wlp2s0 proto dhcp metric 600
 169.254.0.0/16 dev wg0 scope link metric 1000
 172.16.0.0/24 dev wg0 proto kernel scope link src 172.16.0.5
 192.168.0.0/24 dev wlp2s0 proto kernel scope link src 192.168.0.50 metric 600
MostRecentCrashID: bp-503ae7fd-820e-46e7-b595-808330180209
Profile1Extensions: extensions.sqlite corrupt or missing
Profile1IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile1Locales: extensions.sqlite corrupt or missing
Profile1PrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:363
Profile1PrefSources: prefs.js
Profile1Themes: extensions.sqlite corrupt or missing
Profiles:
 Profile1 - LastVersion=76.0a1/20200312215313 (Out of date)
 Profile0 (Default) - LastVersion=95.0/20211129150630 (In use)
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RunningIncompatibleAddons: False
SourcePackage: firefox
SubmittedCrashIDs: bp-503ae7fd-820e-46e7-b595-808330180209
UpgradeStatus: Upgraded to jammy on 2019-12-22 (714 days ago)
dmi.bios.date: 08/09/2018
dmi.bios.release: 1.45
dmi.bios.vendor: LENOVO
dmi.bios.version: 0XCN45WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: Toronto 4A2
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40679 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 310-14ISK
dmi.ec.firmware.release: 1.45
dmi.modalias: dmi:bvnLENOVO:bvr0XCN45WW:bd08/09/2018:br1.45:efr1.45:svnLENOVO:pn80UG:pvrLenovoideapad310-14ISK:rvnLENOVO:rnToronto4A2:rvrSDK0J40679WIN:cvnLENOVO:ct10:cvrLenovoideapad310-14ISK:skuLENOVO_MT_80UG_BU_idea_FM_Lenovoideapad310-14ISK:
dmi.product.family: IDEAPAD
dmi.product.name: 80UG
dmi.product.sku: LENOVO_MT_80UG_BU_idea_FM_Lenovo ideapad 310-14ISK
dmi.product.version: Lenovo ideapad 310-14ISK
dmi.sys.vendor: LENOVO
modified.conffile..etc.cron.daily.apport: [deleted]

[Olivier Tilloy (osomon)]

Please excuse the lack of timely feedback. Is this still happening with the latest Firefox update?
If so, it might be worth testing an upstream build (from https://www.mozilla.org/firefox/download/thanks/) to let us know whether it's similarly affected, or if it's an Ubuntu-specific problem.
If upstream builds are affected, could you please file an upstream bug at https://bugzilla.mozilla.org/enter_bug.cgi and share the link to it here?

[Leonardo Müller (leozinho29-eu)]

Recently, I have no longer observed this problem, and after Firefox updated from deb to snap, it hasn't reappeared, so it seems fixed to me now.

[Olivier Tilloy (osomon)]

Thanks for the feedback, I'm glad to read that the problem is gone.