liferea crash on startup on Wayland - assertion G_IS_OBJECT failed

[Steve Baker]

Hi,

Liferea refuses to start on my laptop when I use Wayland, but is OK on Xorg.

The window does flash up, but then closes immediately.

Here is some relevant output, please let me know what further details I can provide to help.

bakes@bakes-XPS:~$ liferea --gtk-debug=gui
sys:1: Warning: g_object_set: assertion 'G_IS_OBJECT (object)' failed
Gdk-Message: 10:42:43.325: Error flushing display: Protocol error

bakes@bakes-XPS:~$ liferea --gdk-debug=events
sys:1: Warning: g_object_set: assertion 'G_IS_OBJECT (object)' failed
Gdk-Message: 10:44:00.837: configure, window 0x560175a32a70 -1x-1,
Gdk-Message: 10:44:00.907: configure, window 0x560175a32a70 1634x1026, focused
Gdk-Message: 10:44:00.907: focus in, seat 0x560175268040 surface 0x560175a32a70
Gdk-Message: 10:44:00.907: data device selection, data device 0x5601752b7b30, data offer (nil)
Gdk-Message: 10:44:00.907: primary selection offer, device 0x5601752b7c40, data offer 0x5601761e27d0
Gdk-Message: 10:44:00.907: primary offer offer, offer 0x5601761e27d0, type = text/plain;charset=utf-8
Gdk-Message: 10:44:00.907: primary offer offer, offer 0x5601761e27d0, type = text/plain
Gdk-Message: 10:44:00.907: primary offer offer, offer 0x5601761e27d0, type = TEXT
Gdk-Message: 10:44:00.907: primary offer offer, offer 0x5601761e27d0, type = UTF8_STRING
Gdk-Message: 10:44:00.907: primary offer offer, offer 0x5601761e27d0, type = STRING
Gdk-Message: 10:44:00.907: primary offer offer, offer 0x5601761e27d0, type = MULTIPLE
Gdk-Message: 10:44:00.907: primary offer offer, offer 0x5601761e27d0, type = SAVE_TARGETS
Gdk-Message: 10:44:00.907: primary offer offer, offer 0x5601761e27d0, type = TARGETS
Gdk-Message: 10:44:00.907: primary offer offer, offer 0x5601761e27d0, type = TIMESTAMP
Gdk-Message: 10:44:00.907: primary selection selection, device 0x5601752b7c40, data offer 0x5601761e27d0
Gdk-Message: 10:44:00.907: surface enter, window 0x560175a32a70 output 0x560175264e70
Gdk-Message: 10:44:00.907: frame 0x560175a32a70
Gdk-Message: 10:44:00.955: enter, seat 0x560175268040 surface 0x560175a32a70
Gdk-Message: 10:44:00.955: frame, seat 0x560175268040
Gdk-Message: 10:44:00.955: frame 0x560175a32a70
Gdk-Message: 10:44:00.958: pointer surface of seat 0x560175268040 entered output 0x560175264e70
Gdk-Message: 10:44:00.963: frame 0x560175a32a70
Gdk-Message: 10:44:01.005: Error flushing display: Protocol error

bakes@bakes-XPS:~$ liferea --version
Liferea 1.13.7

bakes@bakes-XPS:~$ uname -a

Linux bakes-XPS 5.15.0-48-generic #54-Ubuntu SMP Fri Aug 26 13:26:29 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

bakes@bakes-XPS:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=22.04
DISTRIB_CODENAME=jammy
DISTRIB_DESCRIPTION="Ubuntu 22.04.1 LTS"

bakes@bakes-XPS:~$ apt search liferea
Sorting... Done
Full Text Search... Done
liferea/jammy,now 1.13.7-2build1 amd64 [installed]
  feed/news/podcast client with plugin support

liferea-data/jammy,jammy,now 1.13.7-2build1 all [installed,automatic]
  architecture independent data for liferea

[Steve Baker (g-steve-2)]

Extra:

Just ran the same command under Xorg - the "assertion G_IS_OBJECT failed" error message still occurs but the window opens and the program runs normally. It seems that this part of the message might be misleading.

[lotuspsychje (lotuspsychje)]

i just tested this on 22.04.1 Ubuntu-desktop
i cant make it crash on my side

[Steve Baker (g-steve-2)]

After updating to Ubuntu 22.10 (incl Gnome 43 and liferea 1.13.8) the problem no longer occurs.