This bug affects me too. Ubuntu 20.04 with Gnome. The bug appears when using Firefox in my case. Downgrading the kernel to 5.4 series solves the issue. I have to downgrade from 5.11, the last version of the Hardware Enablement Stack. The bug is present on 5.11 and 5.8 versions.
Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz glxinfo | grep "Device" Device: Mesa DRI Intel(R) HD Graphics 2500 (IVB GT1) (0x152 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1934652 Title: Graphics Tearing on 5.8 kernel (Intel(R) HD Graphics 2500, Ivy Bridge) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.8/+bug/1934652/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs