Comment 25 for bug 1876882

> right, I think the default driver should still be i965 for the backport, as TGL support isn't a priority

I agree that i965 should be the default driver.
There is a bug in xf86-video-intel (xserver-xorg-video-intel). It leads to iris crashes when DRI2 and the intel DDX driver (instead of modesetting) are in use.
https://github.com/flatpak/flatpak/issues/3673#issuecomment-656688063

Almost all current Linux distributions are affected (including Fedora Rawhide and openSUSE Tumbleweed). Basically, everything that uses xf86-video-intel (xserver-xorg-video-intel) older than 2 months (or without patch) is affected.
https://src.fedoraproject.org/rpms/xorg-x11-drv-intel/blob/2501bf9ac2a756f333a6852309eb745e6b9d6861/f/xorg-x11-drv-intel.spec#_3
https://build.opensuse.org/package/view_file/openSUSE:Factory/xf86-video-intel/xf86-video-intel.spec?rev=82

To fix it, please make sure that you have applied this patch:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-intel/-/commit/f2a54e256dd7539633c476a379db2b1e60eec811

Related issues in EL and Fedora:
- EL7: https://bugzilla.redhat.com/show_bug.cgi?id=1854674
- EL8: https://bugzilla.redhat.com/show_bug.cgi?id=1856738
- FC32: https://bugzilla.redhat.com/show_bug.cgi?id=1854672

See also:
https://github.com/widelands/widelands/issues/3937
https://github.com/flatpak/flatpak/issues/3673
https://gitlab.com/freedesktop-sdk/freedesktop-sdk/-/issues/1071
https://gitlab.com/freedesktop-sdk/freedesktop-sdk/-/merge_requests/2927#note_375652460
https://gitlab.freedesktop.org/mesa/mesa/-/issues/3188