Stuttering while scrolling on Nvidia 144Hz monitor
Categories
(Core :: Graphics, defect)
Tracking
()
People
(Reporter: jrmuizel, Unassigned)
References
(Blocks 1 open bug)
Details
I had this, but can't reproduce after rebooting.
It looks like the DWM was dropping frames.
It went away when disabling the GPU process.
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Updated•5 years ago
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https://nvidia.custhelp.com/app/answers/detail/a_id/5159/
"Prior to driver version 461.09, only a single plane was available to the OS. The Desktop Windows Manager (DWM) would composit the contents from all the windows and then present everything at the refresh rate cadence. This means that tearing was avoided by DWM design even without V-Sync.
However, driver version 461.09 and later supports multiplane overlay (MPO). (MPO provides benefits, such as reduced latencies, for gaming in windowed mode.) With multiplane overlay, the application is allowed to present its contents independently and with its own V-Sync setting. The OS, outside of driver control, decides which apps get promoted to their own MPO plane. If V-Sync is OFF, then there will be tearing (even in windowed mode) because, as in full-screen mode, there is now no desktop compositor controlling the presentation. Setting V-Sync OFF now has the same effect in windowed apps as it does for full-screen apps."
To avoid unexpected tearing in windowed mode, NVIDIA recommends leaving the V-Sync global setting at the default "Use the 3D application setting".
https://nvidia.custhelp.com/app/answers/detail/a_id/5157/
May be related since Nvidia added multiplane overlay(MPO) support in 461.09 driver and later versions.
Description
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