xfwm4-CRITICAL

bitrat · 2023-07-23 21:11:54

Hi,

XFCE has been stable since installing it a few days ago but, today, I moved a Terminal and Thunar window to Workspace 2, which is the first time I've used workspaces in XFCE.

A few minutes later (I wasn't at the keyboard) I saw that the desktop had crashed.

It restarted without issues from a character terminal (Ctrl-Alt-F1) with

sudo systemctl restart lightdm

Looking in ~/.xsession-errors.old the most likely error looks like:

(xfwm4:1505): xfwm4-CRITICAL **: 07:40:02.640: clientMoveToMonitorByDirectionTarget: assertion 'candidate_monitors != NULL' failed

Can anyone shed any light on this issue?

ToZ · 2023-07-23 22:49:55

Which distro and version of Xfwm4 are you running?

Do you have multiple monitors?

See: https://gitlab.xfce.org/xfce/xfwm4/-/issues/694.

bitrat · 2023-07-24 04:23:15

ToZ wrote:

Which distro and version of Xfwm4 are you running?

	This is xfwm4 version 4.18.0 (revision 7e7473c5b) for Xfce 4.18
	Released under the terms of the GNU General Public License.
	Compiled against GTK+-3.24.35, using GTK+-3.24.37.

	Build configuration and supported features:
	- Startup notification support:                 Yes
	- XSync support:                                Yes
	- Render support:                               Yes
	- Xrandr support:                               Yes
	- Xpresent support:                             Yes
	- X Input 2 support:                            No
	- Embedded compositor:                          Yes
	- Epoxy support:                                Yes

ToZ wrote:

Do you have multiple monitors?
See: https://gitlab.xfce.org/xfce/xfwm4/-/issues/694.

No, I'm only using one monitor and the Settings | Display tab looks normal.

Thanks for the link, it definitely looks related.

What is X Input 2 support I wonder?

I'm a bit busy right now, but I'll update with any new info.

Cheers,
bitrat

Last edited by bitrat (2023-07-24 04:25:38)

Tamaranch · 2023-07-24 07:59:38

The xwfm4 issue was actually fixed, I closed it. @bitrat you can try building xfwm4 from git master to see if that solves your problem.

bitrat · 2023-07-24 21:08:36

Tamaranch wrote:

The xwfm4 issue was actually fixed, I closed it. @bitrat you can try building xfwm4 from git master to see if that solves your problem.

Thanks, I'll try that in a week or two and stick to one workspace in the meantime.

FYI:

$ xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DVI-I-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm
   1920x1080     60.00*+  59.96    50.00    59.94    59.93  
   1920x1080i    60.00    50.00    59.94  
   1680x1050     59.95    59.88  
   1400x1050     74.76    59.98  
   1600x900      59.95    59.82  
   .
   .
   .
   .

Also ....

ToZ wrote:

Which distro ...?

Debian 12 Bookworm

$ uname -a
Linux lyra 6.1.0-10-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.37-1 (2023-07-03) x86_64 GNU/Linux

Last edited by bitrat (2023-07-24 23:04:27)

bitrat · 2023-07-25 20:47:38

Update: I've had a couple more bugs, possibly wm related... A firefox window spontaneously moved to full screen and won't go back to a normal window (other ff windows unaffected). Also right mouse click ceased to function in ff. These may well be firefox bugs, not wm.

All new ff windows open full screen. There's an 8 year old FF bug that looks very similar: https://support.mozilla.org/en-US/questions/1070201 except my browser seems normal after restart.

Just fyi, not looking for further advice.

Last edited by bitrat (2023-07-25 21:05:52)

mint4all · 2023-07-26 00:06:40

bitrat wrote:

Update: I've had a couple more bugs, possibly wm related... A firefox window spontaneously moved to full screen and won't go back to a normal window (other ff windows unaffected). Also right mouse click ceased to function in ff. These may well be firefox bugs, not wm.
All new ff windows open full screen. There's an 8 year old FF bug that looks very similar: https://support.mozilla.org/en-US/questions/1070201 except my browser seems normal after restart.
Just fyi, not looking for further advice.

Greetings!

One easily-overlooked "feature" of FF is the F11 (full-screen) toggle. It may be that your F11-shortcuts (defined within XFCE4) overlap with FF's handling of F11. This can get very annoying as FF's toggle prevents one from accessing the usual desktop items, ie the main panel, or other running apps (though the alt-tab switcher will always get you out of such dilemmas). Have you tried that toggle? Can't hurt...

Cheers, m4a

bitrat · 2023-07-27 01:17:00

@m4a, thanks for this, but no it was a bug. I use F11 a lot with FF and I checked the XFCE shortcut keys and none are mapped to F11.

I've had another bug since then: the whole screen buffer seemed to be displayed, and locked to the mouse (ie, the desktop moved, rather than the mouse pointer). Alt-tab still worked to switch to other apps, but I had to log out and back in to get it back to normal.

I'm going to have a closer look at my config when I have time. I usually have 2 monitors and my system has a good gfx card plus onboard, so plenty of room for confusion I guess.

Ps: why does this forum log me out after about two minutes inactivity?

Cheers,
bitrat

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#1 2023-07-23 21:11:54

xfwm4-CRITICAL

#2 2023-07-23 22:49:55

Re: xfwm4-CRITICAL

#3 2023-07-24 04:23:15

Re: xfwm4-CRITICAL

#4 2023-07-24 07:59:38

Re: xfwm4-CRITICAL

#5 2023-07-24 21:08:36

Re: xfwm4-CRITICAL

#6 2023-07-25 20:47:38

Re: xfwm4-CRITICAL

#7 2023-07-26 00:06:40

Re: xfwm4-CRITICAL

#8 2023-07-27 01:17:00

Re: xfwm4-CRITICAL

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