I’m playing in VR on Ubuntu, and realized a slighty but noticable lag/latency that was introduced with driver 440.44. It was fine with 440.36. I played on an GTX 1070 on Ubuntu 18.04 LTS with HTC Vive before and I’m now with a RTX 2080 on Ubuntu 19.10 and Valve Index. The notebook(s) I use have GSync monitors.
Ubuntu 19.10 installed driver 435 ootb which also doesn’t have this issue. Today I installed 440.82 and got this issue again.
A guess is, that it is related to this patch note entry (from driver 440.44):
“Fixed a bug that caused applications running directly on a display (such as VR HMDs) to tear when a G-SYNC or G-SYNC Compatible monitor is plugged in the system.”
I didn’t have any issues with tearing in VR though. The introduced latency is causing nausea, so a fix (or workaround) would be appreciated. I tried to disalbe GSync via nvidia-settings, but it didn’t change anything.