> 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 ** Bug watch added: github.com/flatpak/flatpak/issues #3673 https://github.com/flatpak/flatpak/issues/3673 ** Bug watch added: Red Hat Bugzilla #1854674 https://bugzilla.redhat.com/show_bug.cgi?id=1854674 ** Bug watch added: Red Hat Bugzilla #1856738 https://bugzilla.redhat.com/show_bug.cgi?id=1856738 ** Bug watch added: Red Hat Bugzilla #1854672 https://bugzilla.redhat.com/show_bug.cgi?id=1854672 ** Bug watch added: github.com/widelands/widelands/issues #3937 https://github.com/widelands/widelands/issues/3937 ** Bug watch added: gitlab.com/freedesktop-sdk/freedesktop-sdk/-/issues #1071 https://gitlab.com/freedesktop-sdk/freedesktop-sdk/-/issues/1071 ** Bug watch added: gitlab.freedesktop.org/mesa/mesa/-/issues #3188 https://gitlab.freedesktop.org/mesa/mesa/-/issues/3188 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1876882 Title: Backport packages for 18.04.5 HWE stack To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libclc/+bug/1876882/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp