Bug 2221374

Summary:	frequent X11 server crashes after mouse clicks when using fvwm2
Product:	[Fedora] Fedora	Reporter:	Jos de Kloe <josdekloe>
Component:	fvwm	Assignee:	Peter Lemenkov <lemenkov>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	37	CC:	lemenkov, mcermak
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Hardware:	x86_64
OS:	Linux
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Description Jos de Kloe 2023-07-08 11:27:16 UTC

After upgrading to fedora 37 on my work system I experience frequent crashes of the X11 server causing an automatic logout and loss of all my open windows.
This ONLY happens when I use fvwm (which is my window manager of choice), and mostly happens when minimizing/maximizing the firefox window, but I have seen it with other applications occasionally as well.

I believe this is related to https://bugzilla.redhat.com/show_bug.cgi?id=2158562 which suggests it may be related to the upgrade of libX11from 1.8.3 to 1.8.4.

However, after reading https://utcc.utoronto.ca/~cks/space/blog/unix/Fvwm2ToFvwm3?showcomments I believe this is more likely an issue in fvwm2.

So I manually downloaded the latest fvwm3 from github, installed it, and started using it, and this indeed solved my problems.

This leads to my main question: when will the fedora fvwm package move to fvwm3?
If you wish I would be happy to step in as co-maintainer to help out here.


Reproducible: Always

Steps to Reproduce:
1. start a session with fvwm2
2. start firefox
3. minimiza and maximize the firefox window a few times.


Actual Results:  
The X session crashes and I end up loosing my session and all its content and am thrown back in to the gdm login screen.

Expected Results:  
Fvwm should never let the X-server crash by some user action like mouse clicks and just continue to run.

Comment 1 Jos de Kloe 2023-07-08 11:31:38 UTC

Software versions for which this occurred:
fvwm-2.6.9-8.fc37.x86_64
libX11-1.8.4-1.fc37.x86_64
firefox-114.0.2-1.fc37.x86_64

Comment 2 Jos de Kloe 2023-07-08 11:34:12 UTC

Note that I have also seen the same problem (but less frequent) for fedora 38.
There I used software versions:
fvwm-2.7.0-3.fc38.x86_64
libX11-1.8.6-1.fc38.x86_64
firefox-115.0-2.fc38.x86_64

With fedora 36 and earlier I never had this type of problems.