I'm having the same issue with Ubuntu Focal, kernel 5.4.0-40-generic and latest Nvidia 450.57 from https://launchpad.net/~graphics- drivers/+archive/ubuntu/ppa.
I started having this issue when I update Chrome **after** 81.0.4044.138. Up to this version, things work. From this Chrome version on, whenever I open any OpenGL site (eg: onshape.com), everything freezes for a good 30s, I get a message on "OpenGL not working" from the website, and kernel spits this: [ 80.762915] NVRM: GPU at PCI:0000:09:00: GPU-824bae61-b6cb-f859-5c4b-531553afa61b [ 80.762918] NVRM: GPU Board Serial Number: [ 80.762922] NVRM: Xid (PCI:0000:09:00): 31, pid=5024, Ch 00000016, intr 00000000. MMU Fault: ENGINE HOST0 HUBCLIENT_HOST_CPU faulted @ 0x1_01a8e000. Fault is of type FAULT_PTE ACCESS_TYPE_VIRT_READ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1852002 Title: Desktop frozen for 30 seconds after Nvidia driver crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-435/+bug/1852002/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
