Ubuntu: starting Opera fails

[kniffte]

kniffte last edited by

Hello,
before, I used Opera version 124.0.5705.65 without any issues.
Then, I updated to version 125.0.5729.12 using apt.
Now, Opera starts to launch, but fails.
I've removed folder ~/.config/opera, which gets re-created upon the next try. But launching Opera fails again.

Since Opera doesn't start, I cannot upload a report including the crash info, but here's the log I'm getting:

2025-12-05T12:20:55.179909+01:00 linex014 systemd[5784]: Started app-opera-644d7a4b69a340668b185fd5b7d5e6db.scope - Opera - Web browser.
2025-12-05T12:20:57.249596+01:00 linex014 kernel: audit: type=1400 audit(1764933657.248:422): apparmor="AUDIT" operation="userns_create" class="namespace" info="Userns create - transitioning profile" profile="unconfined" pid=22105 comm="opera" requested="userns_create" target="unprivileged_userns"
2025-12-05T12:20:57.366075+01:00 linex014 plasmashell[22105]: [22105:22105:1205/122057.365718:ERROR:chrome/browser/process_singleton_posix.cc:231] read() failed: Die Verbindung wurde vom Kommunikationspartner zurückgesetzt (104)
2025-12-05T12:20:57.809247+01:00 linex014 plasmashell[22105]: [22105:22124:1205/122057.809170:ERROR:opera/opera_components/partner_bookmarks/partner_bookmarks_utils.cc:269] Unable to read partner speeddials file.
2025-12-05T12:20:57.900364+01:00 linex014 plasmashell[22105]: [22105:22105:1205/122057.900279:ERROR:cc/paint/skottie_wrapper_impl.cc:46] [Skottie] "Failed to parse JSON input.
2025-12-05T12:20:57.900433+01:00 linex014 plasmashell[22105]: "
2025-12-05T12:20:57.910107+01:00 linex014 plasmashell[22108]: [1205/122057.909811:ERROR:third_party/crashpad/crashpad/snapshot/elf/elf_dynamic_array_reader.h:64] tag not found
2025-12-05T12:20:57.910164+01:00 linex014 plasmashell[22108]: [1205/122057.909974:ERROR:third_party/crashpad/crashpad/snapshot/elf/elf_dynamic_array_reader.h:64] tag not found
2025-12-05T12:20:57.910207+01:00 linex014 plasmashell[22108]: [1205/122057.910031:ERROR:third_party/crashpad/crashpad/snapshot/elf/elf_dynamic_array_reader.h:64] tag not found
2025-12-05T12:20:57.910960+01:00 linex014 plasmashell[22108]: [1205/122057.910898:ERROR:third_party/crashpad/crashpad/snapshot/elf/elf_dynamic_array_reader.h:64] tag not found
2025-12-05T12:20:57.911980+01:00 linex014 plasmashell[22108]: [1205/122057.911922:ERROR:third_party/crashpad/crashpad/snapshot/elf/elf_dynamic_array_reader.h:64] tag not found
2025-12-05T12:20:57.915005+01:00 linex014 plasmashell[22108]: [1205/122057.914942:ERROR:third_party/crashpad/crashpad/snapshot/elf/elf_dynamic_array_reader.h:64] tag not found
2025-12-05T12:20:57.915049+01:00 linex014 plasmashell[22108]: [1205/122057.915007:ERROR:third_party/crashpad/crashpad/snapshot/elf/elf_dynamic_array_reader.h:64] tag not found
2025-12-05T12:20:57.915471+01:00 linex014 plasmashell[22108]: [1205/122057.915413:ERROR:third_party/crashpad/crashpad/snapshot/elf/elf_dynamic_array_reader.h:64] tag not found
2025-12-05T12:20:58.062524+01:00 linex014 systemd[5784]: app-opera-644d7a4b69a340668b185fd5b7d5e6db.scope: Consumed 4.771s CPU time.

...this log is repeated 4 times, but I cannot paste so much text here.

Thanks for your help.
kniffte

[geekk]

geekk @kniffte last edited by

@kniffte Same here on Arch (AUR package), both 125.0.5729.12 and 125.0.5729.15

[zibi1981]

zibi1981 last edited by

Known bug especially on Arch based systems and KDE. There is a workaround but it requires to run Opera on X11 instead of Wayland.

[geekk]

geekk @zibi1981 last edited by

@zibi1981 What's the workaround? I'm on X11.

[zibi1981]

zibi1981 @geekk last edited by

@geekk Hmm, then maybe you are hit by a different bug. This works on my CachyOS KDE on Wayland

mkdir -p /tmp/opera-clean
env XDG_CURRENT_DESKTOP=GNOME XDG_SESSION_DESKTOP=GNOME XDG_SESSION_TYPE=x11 \
  opera-stable --ozone-platform=x11 --user-data-dir=/tmp/opera-clean --no-first-run --disable-gpu about:blank

[geekk]

geekk @zibi1981 last edited by geekk

@zibi1981 Maybe a different bug, as you already said. Getting the same errors. Thanks for your help.

[ds123456]

ds123456 last edited by

env XDG_CURRENT_DESKTOP=GNOME  opera

worked for me, thanks zibi1981

[zibi1981]

zibi1981 @ds123456 last edited by

@ds123456 Yeah, another proof the bug is KDE + Wayland related.

[parkerlreed]

parkerlreed last edited by

For what it's worth, extracting the latest deb to a folder and running works on Fedora KDE Plasma Wayland.

[geekk]

geekk last edited by

Crash is fixed for me in version 125.0.5729.21.

[kniffte]

kniffte @geekk last edited by

@geekk yes, I tried that yesterday, too - it's working again. Thanks

[simroux]

simroux last edited by

Just to add to the list: I saw the same error with "chrome/browser/process_singleton_posix" when updating to 125.0.5729.12 on Ubuntu. I "fixed" it based on @zibi1981 suggestion above, as follows:

opera --ozone-platform=x11

From my crude understanding, it would again point to wayland vs x11 issue, but anyway, just sharing in case someone else ends up here after seeing opera crash on startup in Ubuntu.