https://bugs.kde.org/show_bug.cgi?id=521125
--- Comment #3 from Hugo Burd <[email protected]> --- (In reply to Zamundaaa from comment #1) > Triple buffering *is* off by default for Nvidia, and doesn't affect the > hardware cursor. > Are you absolutely certain that env var is what made the difference? > > Also, please attach the output of drm_info. Make sure to call it while the > cursor is visible. I think I fooled myself about the triple buffering. I have compared with and without that setting and I do not perceive a difference. However I do still perceive a difference in mouse latency when switching between windows and kwin. I have attached the output of drm_info. My phone's camera goes up to 240 Hz so I attempted to collect some data to back this up by recording the delay between moving my mouse and the cursor moving on screen. On KWin, I measured a mean latency of 53ms with standard deviation 9.8ms (13 samples). On Windows, I measured a mean latency of 39 ms with standard deviation 6.3 ms (10 samples). I would need to collect more data to be sure but it seems likely that there is a real latency difference between the platforms. -- You are receiving this mail because: You are watching all bug changes.
