I am not completely sure where I should file the bug. I am using Lubuntu 20.04 with lxqt, and since the upgrade to 20.04 iris is the default graphics driver, which results in crashes in multiple apps including guvcview and calibre. Setting MESA_LOADER_DRIVER_OVERRIDE=i965 fixed the problem. I am not sure but is it true that iris does not support older generations of Intel CPUs? If it is the case would it be possible to revert to i965 in those circumstances? Thanks!