[Xfce-bugs] [Bug 15837] New: Flickering / Stuttering after enabling chooser on login in xfce4-session-settings

[bugzilla-daemon at xfce.org]

https://bugzilla.xfce.org/show_bug.cgi?id=15837

            Bug ID: 15837
           Summary: Flickering / Stuttering after enabling chooser on
                    login in xfce4-session-settings
    Classification: Xfce Core
           Product: Xfce4-session
           Version: 4.14.0
          Hardware: PC (x86_64)
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Medium
         Component: General
          Assignee: xfce-bugs at xfce.org
          Reporter: schreibemirhalt at gmail.com
  Target Milestone: Xfce 4.14

So on the recent xfce version (4.14) but not on 4.14-pre2 (and also not on any
other version nor any other DE I ever used) I encountered flickering in panels
or in transparent windows when something updated. I also experience sluggerish
/ stuttering behaviour of any windows I dragged.
No matter what is in .config or it's subfolders it always happen when I either
copy a xfce4-session.xml with <property name="chooser" type="empty"><property
name="AlwaysDisplay" type="bool" value="true"/</property> included or when I
enable the equivalent option in xfce4-session-settings that sets that enables
this property in the xfce4-session.xml.
Well.. Actually that option can be set and no problems occur until at least one
session is saved in .cache/sessions. If no session is saved there then no
problems occur and the chooser won't be displayed after startxfce4 is executed.

I'm on Arch Linux Kernel: 5.2.8-arch1-1-ARCH with btrfs as the main file
system.
It also happens on the 4.9 lts kernel. It doesn't matter wether any kernel
options are set.
I'm using a Notebook (GL62 7RD REV:1.0). I used the Intel graphics card when I
experienced this issue; haven't tested with the nvidia card.

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