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constant screen flickering with xfwm4 compositor enabled


Description Mukundan Ragavan 2018-09-02 15:05:19 CEST
Created attachment 7929 
build log

The video in this link shows the flickering


This is one a Thinkpad X1 3rd gen (integrated graphics). This flickering is observed in Fedora 29 pre-beta versions. We are planning to include 4.13.x in Fedora 29 and would like to get this sorted out.

Complete build log is attached.

Let me know what other information is needed. Thanks.
Comment 1 Andre Miranda editbugs 2018-09-02 19:01:59 CEST
I was getting this same kind of flickering when using the glx-backend, this unreleased commit fixed the problem:

Can you test current git master?
Comment 2 Mukundan Ragavan 2018-09-02 21:39:02 CEST
Hmmm ... Building from git master does not seem to work.

Build Configuration for xfwm4 version 4.13.1git.UNKNOWN revision UNKNOWN:
  Startup notification support: yes
  XSync support:                yes
  Render support:               yes
  Xrandr support:               yes
  Xpresent support:             no
  Embedded compositor:          yes
  Epoxy support:                yes
  KDE systray protocol proxy:   no

xfwm4-settings.c:51:10: fatal error: xfwm4-dialog_ui.h: No such file or directory
 #include "xfwm4-dialog_ui.h"
compilation terminated.
make[3]: *** [Makefile:710: xfwm4_settings-xfwm4-settings.o] Error 1
make[3]: Entering directory '/builddir/build/BUILD/xfwm4-4.13.1-git438ebc90/settings-dialogs'
  CC       xfwm4_workspace_settings-workspace-settings.o
make[3]: Leaving directory '/builddir/build/BUILD/xfwm4-4.13.1-git438ebc90/settings-dialogs'
workspace-settings.c:44:10: fatal error: xfwm4-workspace-dialog_ui.h: No such file or directory
 #include "xfwm4-workspace-dialog_ui.h"
compilation terminated.
make[3]: *** [Makefile:766: xfwm4_workspace_settings-workspace-settings.o] Error 1
make[3]: Entering directory '/builddir/build/BUILD/xfwm4-4.13.1-git438ebc90/settings-dialogs'
  CC       xfwm4_settings-range-debouncer.o
make[3]: Leaving directory '/builddir/build/BUILD/xfwm4-4.13.1-git438ebc90/settings-dialogs'
make[3]: Entering directory '/builddir/build/BUILD/xfwm4-4.13.1-git438ebc90/settings-dialogs'
  CC       xfwm4_tweaks_settings-tweaks-settings.o
make[3]: Leaving directory '/builddir/build/BUILD/xfwm4-4.13.1-git438ebc90/settings-dialogs'
tweaks-settings.c:48:10: fatal error: xfwm4-tweaks-dialog_ui.h: No such file or directory
 #include "xfwm4-tweaks-dialog_ui.h"

Not sure if I am doing something wrong though. These files are present in 4.13.1 tarball but not in master.
Comment 3 Andre Miranda editbugs 2018-09-03 05:00:26 CEST
It is because that file (xfwm4-dialog_ui.h) is generated from xfwm4-dialog.glade.
Please, try to configure with --enable-maintainer-mode and make sure exo is installed.
Comment 4 Olivier Fourdan editbugs 2018-09-03 09:09:19 CEST
That particular bug is fixed in master, but if you get flickering, that means you're using GLX and not Xpresent, whereas Xpresent is the default.

Can you check your build?
Comment 6 Olivier Fourdan editbugs 2018-09-03 11:49:36 CEST

Package xpresent was not found in the pkg-config search path.
Perhaps you should add the directory containing `xpresent.pc'
to the PKG_CONFIG_PATH environment variable
Package 'xpresent', required by 'virtual:world', not found

  Xpresent support:             no
Comment 7 Miro Hrončok 2018-09-03 12:04:32 CEST
Comment 8 Olivier Fourdan editbugs 2018-09-03 12:52:43 CEST
In other words, you need to add “libXpresent-devel” as “BuildRequires” in your spec file, or:

BuildRequires:  pkgconfig(xpresent)
Comment 9 Miro Hrončok 2018-09-03 12:56:50 CEST
I've proposed that in https://src.fedoraproject.org/rpms/xfwm4/pull-request/1

I think we can close this as this is now purely downstream bug.
Comment 10 Mukundan Ragavan 2018-09-03 15:40:13 CEST
Turns out we have not used xpresent for as long as I have touched this package for some reason. I will enable xpresent. Closing. Thank you Andre and Olivier for prompt responses.

Bug #14652

Reported by:
Mukundan Ragavan
Reported on: 2018-09-02
Last modified on: 2018-09-03


Olivier Fourdan
CC List:
2 users




build log (82.45 KB, text/x-log)
2018-09-02 15:05 CEST , Mukundan Ragavan
no flags

Additional information