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IDProjectCategoryView StatusLast Update
0005823Kali Linux[All Projects] General Bugpublic2019-11-28 01:10
Reporteranishkgt Assigned To 
PriorityhighSeverityminorReproducibilityrandom
Status newResolutionopen 
Product Version2019.3 
Target VersionFixed in Version 
Summary0005823: Momentary screen flicker
DescriptionKali running on VirtualBox, open widows flicker when moving the mouse around
Steps To ReproduceMove a window or the mouse several times.

Activities

Himblez

2019-11-27 20:00

reporter   ~0011397

Disabling 3D acceleration via VM Manager fixes this issue, at least it did for me. Must be something to do with that.

3d.PNG (9,077 bytes)
3d.PNG (9,077 bytes)

iesplin

2019-11-28 01:10

reporter   ~0011408

Changing the xfwm (compositor) vblank method to 'xpresent' or 'off' resolved this for me under VMware Workstation 15.5 with 3D acceleration enabled.

Restart xfwm with vblank set to 'xpresent':
$ xfwm4 --replace --vblank=xpresent &

Restart xfwm with vblank set to 'off':
$ xfwm4 --replace --vblank=off &

Permanently set the vblank method:
$ xfconf-query -c xfwm4 -p /general/vblank_mode -s xpresent

Documentation on xfwm vblank:
https://git.xfce.org/xfce/xfwm4/tree/COMPOSITOR

Issue History

Date Modified Username Field Change
2019-11-27 01:03 anishkgt New Issue
2019-11-27 20:00 Himblez File Added: 3d.PNG
2019-11-27 20:00 Himblez Note Added: 0011397
2019-11-28 01:10 iesplin Note Added: 0011408