Bug 347397 - Kwin detects refresh rate as 50hz even though the monitor is 60hz
Summary: Kwin detects refresh rate as 50hz even though the monitor is 60hz
Status: RESOLVED DUPLICATE of bug 347360
Alias: None
Product: kwin
Classification: Plasma
Component: compositing (show other bugs)
Version: 5.3.0
Platform: Arch Linux Linux
: NOR major
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-05-07 22:58 UTC by kaankasim88
Modified: 2015-05-07 22:58 UTC (History)
0 users

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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 ***