** Description changed: Similar to bug https://launchpad.net/bugs/1950665, the GSYNC regression bug has returned in 495.44 on Ubuntu 21.10. I have tried the standard kernel and 5.14.1 and 5.14.17, but they are all experiencing the same bug again. Prior to upgrading to Ubuntu 21.10, I had upgraded to 495.44 on Ubuntu 21.04 and kernel 5.14.1, and this problem was not present. I then upgraded to Ubuntu 21.10, and the problem didn't seem to be present, but as of today I've noticed again. - I'm not sure what the cause is, but I have tried full driver purge, + I'm not sure what the cause is, but I have tried full driver purges, returned to 470.82, went back to the standard kernel for 21.10 (5.13.0-21-generic), 5.14.1 and 5.14.17, and the problem continues to - occur when any GPU accelerated application grabs focus of the screen. A + occur when any GPU accelerated application starts, in some cases when + switching between applications (i.e. alt tabbing out of a game). A second or so of no signal occurs as it re-syncs. - I am unsure if X11 has been updated in this time, I know there was - working GBM support, wondering if X11 has switched to using this instead - of the EGL Streams direct approach that was used previously. Either-way, - I'm still running X11. + I am unsure if X11 has been updated in this time, I know there was work + happening on GBM support, wondering if X11 has switched to using this + instead of the EGL Streams direct approach that was used previously. + Either-way, I'm still running X11 in all of these tests. Let me know if there are any test you'd like me to try.
** Description changed: Similar to bug https://launchpad.net/bugs/1950665, the GSYNC regression bug has returned in 495.44 on Ubuntu 21.10. I have tried the standard kernel and 5.14.1 and 5.14.17, but they are all experiencing the same bug again. + + Hardware is: + - NVIDIA GeForce RTX 2080 Super + - Dell 27" S2721DGF G-Sync Compatible monitor Prior to upgrading to Ubuntu 21.10, I had upgraded to 495.44 on Ubuntu 21.04 and kernel 5.14.1, and this problem was not present. I then upgraded to Ubuntu 21.10, and the problem didn't seem to be present, but as of today I've noticed again. I'm not sure what the cause is, but I have tried full driver purges, returned to 470.82, went back to the standard kernel for 21.10 (5.13.0-21-generic), 5.14.1 and 5.14.17, and the problem continues to occur when any GPU accelerated application starts, in some cases when switching between applications (i.e. alt tabbing out of a game). A second or so of no signal occurs as it re-syncs. I am unsure if X11 has been updated in this time, I know there was work happening on GBM support, wondering if X11 has switched to using this instead of the EGL Streams direct approach that was used previously. Either-way, I'm still running X11 in all of these tests. Let me know if there are any test you'd like me to try. ** Description changed: Similar to bug https://launchpad.net/bugs/1950665, the GSYNC regression bug has returned in 495.44 on Ubuntu 21.10. I have tried the standard kernel and 5.14.1 and 5.14.17, but they are all experiencing the same bug again. Hardware is: - NVIDIA GeForce RTX 2080 Super - Dell 27" S2721DGF G-Sync Compatible monitor + - High quality DisplayPort cable (This was replaced previously under suspicion) + + This issue happens at all refresh rates: 60 Hz, 120 Hz, 144 Hz and 165 + Hz. Prior to upgrading to Ubuntu 21.10, I had upgraded to 495.44 on Ubuntu 21.04 and kernel 5.14.1, and this problem was not present. I then upgraded to Ubuntu 21.10, and the problem didn't seem to be present, but as of today I've noticed again. I'm not sure what the cause is, but I have tried full driver purges, returned to 470.82, went back to the standard kernel for 21.10 (5.13.0-21-generic), 5.14.1 and 5.14.17, and the problem continues to occur when any GPU accelerated application starts, in some cases when switching between applications (i.e. alt tabbing out of a game). A second or so of no signal occurs as it re-syncs. I am unsure if X11 has been updated in this time, I know there was work happening on GBM support, wondering if X11 has switched to using this instead of the EGL Streams direct approach that was used previously. Either-way, I'm still running X11 in all of these tests. Let me know if there are any test you'd like me to try. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1950720 Title: GSYNC bug regression in 495.44 Ubuntu 21.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-495/+bug/1950720/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
