Created attachment 145763 [details] dmesg from err after starting test with MESA_LOADER_DRIVER_OVERRIDE=iris vblank_mode=0 glxgears driver will freeze unfortunately I can no recover error state of the card because whole system freeze. Ubuntu 18.04.3 with 5.4 rc3 works correct with 5.3.6. KBL 8706G
Grab drm-tip from https://cgit.freedesktop.org/drm-tip so that we are working with the same baseline.
Can you please reproduce the issue with https://cgit.freedesktop.org/drm-tip?
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/intel/issues/521.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.