chromium 124.0.6367.60 fails to draw its window

[Marius Gedminas]

Since the last snap update to 124.0.6367.60, I cannot use chromium. It launches fine, but the window itself is fully transparent (e.g. triggering the Overview makes it look like a piece of my wallpaper).

I have Intel graphics and use a Wayland session on Ubuntu 23.10.

At first I thought I was experiencing bug 1967488, but the more I looked at it, the less sure I was (no Nvidia here, no issues with older snap versions, no KMS errors in journalctl), so I'm filing a new one.
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ProblemType: Bug
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
DiskUsage:
 Filesystem Type Size Used Avail Use% Mounted on
 /dev/nvme0n1p5 ext4 732G 483G 212G 70% /
 tmpfs tmpfs 7,7G 75M 7,6G 1% /dev/shm
 /dev/nvme0n1p5 ext4 732G 483G 212G 70% /
DistroRelease: Ubuntu 23.10
EcryptfsInUse: Yes
InstallationDate: Installed on 2019-06-12 (1777 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
Package: chromium-browser 1:85.0.4183.83-0ubuntu3
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 6.5.0-28.29-generic 6.5.13
Snap.Changes:
 ID Status Spawn Ready Summary
 824 Done 2024-04-23T20:13:38+03:00 2024-04-23T20:28:35+03:00 Auto-refresh snap "chromium"
Snap.ChromeDriverVersion: ChromeDriver 124.0.6367.60 (8771130bd84f76d855ae42fbe02752b03e352f17-refs/branch-heads/6367@{#798})
Snap.ChromiumVersion: Chromium 124.0.6367.60 snap
Tags: mantic wayland-session
Uname: Linux 6.5.0-28-generic x86_64
UpgradeStatus: Upgraded to mantic on 2023-10-13 (194 days ago)
UserGroups: adm cdrom dip docker libvirt lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True

[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

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[Marius Gedminas (mgedmin)]

dmesg has a bunch of repeated

`snap revert chromium` reverted to 123.0.6312.122, which works fine.

[Marius Gedminas (mgedmin)]

(sorry, copy/paste fail)

> dmesg has a bunch of repeated

bal. 24 09:40:04 blynas kernel: audit: type=1400 audit(1713940804.105:20243): apparmor="DENIED" operation="open" class="file"
profile="snap.firefox.firefox" name="/etc/igfx_user_feature.txt" pid=7070 comm="FSBroker7944" requested_mask="r" denied_mask="
r" fsuid=1000 ouid=0
bal. 24 09:40:04 blynas kernel: audit: type=1400 audit(1713940804.105:20244): apparmor="DENIED" operation="open" class="file"
profile="snap.firefox.firefox" name="/etc/igfx_user_feature_next.txt" pid=7070 comm="FSBroker7944" requested_mask="r" denied_m
ask="r" fsuid=1000 ouid=0

bal. 24 09:40:12 blynas kernel: audit: type=1400 audit(1713940812.841:20245): apparmor="DENIED" operation="mknod" class="file"
 profile="snap.firefox.firefox" name="/home/mg/.local/share/fonts/.uuid.TMP-tJGwe8" pid=191609 comm=57656220436F6E74656E74 req
uested_mask="c" denied_mask="c" fsuid=1000 ouid=1000

and on startup

bal. 24 09:20:31 blynas systemd[3777]: Started snap.chromium.chromium-0ad4ed29-f99c-4296-9b4f-349b888ce2f6.scope.
bal. 24 09:20:32 blynas kernel: audit: type=1326 audit(1713939632.053:20170): auid=1000 uid=1000 gid=1000 ses=3 subj=snap.chromium.chromium pid=189920 comm="chrome" exe="/snap/chromium/2828/usr/lib/chromium-browser/chrome" sig=0 arch=c000003e syscall=330 compat=0 ip=0x77eb42b8ff6b code=0x50000
bal. 24 09:20:32 blynas kernel: audit: type=1326 audit(1713939632.053:20171): auid=1000 uid=1000 gid=1000 ses=3 subj=snap.chromium.chromium pid=189921 comm="chrome" exe="/snap/chromium/2828/usr/lib/chromium-browser/chrome" sig=0 arch=c000003e syscall=330 compat=0 ip=0x7980e32def6b code=0x50000
bal. 24 09:20:32 blynas chrome[189858]: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.
bal. 24 09:20:32 blynas kernel: audit: type=1400 audit(1713939632.165:20172): apparmor="DENIED" operation="mknod" class="file" profile="snap.chromium.chromium" name="/home/mg/.local/share/fonts/.uuid.TMP-u02YgN" pid=189858 comm="ThreadPoolForeg" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
bal. 24 09:20:32 blynas gnome-keyring-daemon[3862]: asked to register item /org/freedesktop/secrets/collection/login/16, but it's already registered
bal. 24 09:20:32 blynas gnome-keyring-d[3862]: asked to register item /org/freedesktop/secrets/collection/login/16, but it's already registered
bal. 24 09:20:32 blynas kernel: audit: type=1400 audit(1713939632.201:20173): apparmor="DENIED" operation="open" class="file" profile="snap.chromium.chromium" name="/etc/vulkan/implicit_layer.d/" pid=189957 comm="chrome" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
bal. 24 09:20:32 blynas kernel: audit: type=1400 audit(1713939632.201:20174): apparmor="DENIED" operation="open" class="file" profile="snap.chromium.chromium" name="/etc/vulkan/implicit_layer.d/" pid=189957 comm="chrome" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
bal. 24 09:20:32 blynas kernel: audit: type=1400 audit(1713939632.201:20175): apparmor="DENIED" operation="open" class="file" profile="snap.chromium.chromium" name="/etc/vulkan/icd.d/" pid=189957 comm="chrome" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
bal....

[Marius Gedminas (mgedmin)]

The syscall=330, the mknod denial, the /etc/vulkan/ denials are also produced by the working chromium snap.

The /etc/igfx_user_feature.txt denial only shows up with the broken chromium snap.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Marius Gedminas (mgedmin)]

(Confirming that I have ozone-platform-hint set to Auto instead of Default in chrome://flags.)