Bug 347397

Summary:	Kwin detects refresh rate as 50hz even though the monitor is 60hz
Product:	[Plasma] kwin	Reporter:	kaankasim88
Component:	compositing	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	major
Priority:	NOR
Version First Reported In:	5.3.0
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description kaankasim88 2015-05-07 22:58:13 UTC

I'm having jerky vsync because of wrongly detected refresh rate. According to fps monitor  kwin is running at 50fps which causes jery motion. As can be easily seen at http://www.testufo.com/#test=framerates, it should be smooth but it is not.

I have tried having double or triple buffer on nvidia config or profile but they had no effect.

kwin_core: OpenGL 2 compositing successfully initialized
kwin_core: Vertical Refresh rate  50 Hz

Reproducible: Always




KDE on Archlinux with Nvidia 340.76 drivers.

Comment 1 Thomas Lübking 2015-05-07 22:58:42 UTC


*** This bug has been marked as a duplicate of bug 347360 ***