0005823: Momentary screen flicker - Kali Linux Bug Tracker

ID	Project	Category	View Status	Date Submitted	Last Update

0005823	Kali Linux	[All Projects] General Bug	public	2019-11-27 01:03	2019-11-28 01:10

Reporter	anishkgt	Assigned To
Priority	high	Severity	minor	Reproducibility	random
Status	new	Resolution	open
Product Version	2019.3
Target Version		Fixed in Version

Summary	0005823: Momentary screen flicker
Description	Kali running on VirtualBox, open widows flicker when moving the mouse around
Steps To Reproduce	Move a window or the mouse several times.

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

Date Modified	Username	Field
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