[Xcb] [Bug 108301] New: Unresponsive mouse wheel and buttons after update to 1.13{, .1}

[b***@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108301

Bug ID: 108301
Summary: Unresponsive mouse wheel and buttons after update to
1.13{,.1}
Product: XCB
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Misc
Assignee: ***@lists.freedesktop.org
Reporter: pmenzel+***@molgen.mpg.de
QA Contact: ***@lists.freedesktop.org

Updating to libxcb 1.13 (or 1.13.1), our user reports the problem below [1].

When I update libxcb (only) to libxcb-1.13-0, restart the X-Server by
log-out/log-in, then use the mouse wheel to scroll a long firefox page, the
mouse wheel and the mouse buttons suddenly become unresponsive (e.g. after 30
seconds activity for 10 seconds). Typing any key immediately unfreezes the
mouse.

With libxcb 1.13.1 and updated X.Org X Server 1.20.1 (I believe it is still
built against libxcb 1.12) the problem persists.

Does the X server need to be rebuilt?

[1]: https://github.molgen.mpg.de/mariux64/bee-files/pull/926#issuecomment-6111

[b***@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108301

--- Comment #1 from Michel DÀnzer <***@daenzer.net> ---
Please attach the corresponding Xorg log file.

[b***@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108301

Paul Menzel <pmenzel+***@molgen.mpg.de> changed:

What |Removed |Added
----------------------------------------------------------------------------
CC| |pmenzel+bugs.freedesktop.or
| |***@molgen.mpg.de

--- Comment #2 from Paul Menzel <pmenzel+***@molgen.mpg.de> ---
Created attachment 141961
--> https://bugs.freedesktop.org/attachment.cgi?id=141961&action=edit
Xorg.0.log from X.Org X Server 1.20.1

[b***@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108301

--- Comment #3 from Uli Schlachter <***@znc.in> ---
What are you updating from? libxcb 1.12?

If so, the only "actual code changes" (outside of generated code) are commits
fad81b63422105f9345215ab2716c4b804ec7986 and
f830eb93c9c38b2c6c7ea2971af3bc6a61e92277. The second one obviously cannot cause
this and fad81b634... well, it shouldn't cause anything? But might expose
latent bugs in something else.

Also possibly related: Does your user uses compton?
https://github.com/chjj/compton/issues/494
https://gitlab.freedesktop.org/xorg/lib/libx11/issues/79

[b***@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108301

--- Comment #4 from Paul Menzel <pmenzel+***@molgen.mpg.de> ---
(In reply to Uli Schlachter from comment #3)

Post by b***@freedesktop.org
What are you updating from? libxcb 1.12?

Yes, we are updating from libxcb 1.12.

Post by b***@freedesktop.org
If so, the only "actual code changes" (outside of generated code) are
commits fad81b63422105f9345215ab2716c4b804ec7986 and
f830eb93c9c38b2c6c7ea2971af3bc6a61e92277. The second one obviously cannot
cause this and fad81b634... well, it shouldn't cause anything? But might
expose latent bugs in something else.

I guess we can test a revert of fad81b634 next week.

Post by b***@freedesktop.org
Also possibly related: Does your user uses compton?
https://github.com/chjj/compton/issues/494
https://gitlab.freedesktop.org/xorg/lib/libx11/issues/79

No, we use Xfce 4.13 and xfwm 4.13 and no compton.

[b***@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108301

Alan Coopersmith <***@oracle.com> changed:

What |Removed |Added
----------------------------------------------------------------------------
Version|unspecified |1.13.1

[b***@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108301

--- Comment #5 from Michel DÀnzer <***@daenzer.net> ---
That libX11 bug affected other compositors like gnome-shell/mutter as well.
It's probably worth testing if libX11 1.6.7 helps.

[b***@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108301

Paul Menzel <pmenzel+***@molgen.mpg.de> changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |NOTOURBUG

--- Comment #6 from Paul Menzel <pmenzel+***@molgen.mpg.de> ---
(In reply to Michel DÀnzer from comment #5)

Post by b***@freedesktop.org
That libX11 bug affected other compositors like gnome-shell/mutter as well.
It's probably worth testing if libX11 1.6.7 helps.

libX11 1.6.7 seems to have fixed this. No idea, why this problem doesn’t
manifest with libX11 1.6.6 and libxcb 1.13.x.