HW: Dell 7350 Intel HD520. SW: Gentoo, kernel 5.2.11, ~amd64, Wayland setup. When using MESA_LOADER_DRIVER_OVERRIDE=iris in /etc/environment, gdm freeze. Only printed lines into logs are: gnome-shell[932]: meta_drm_buffer_gbm_new failed: drmModeAddFB failed: Nepřípustný argument (translated as Unacceptable argument) gnome-shell[932]: meta_drm_buffer_gbm_new failed: drmModeAddFB failed: Nepřípustný argument (translated as Unacceptable argument) I tried compile git mesa with debug, but it didn't get me further. Feel free to ask me to get specific debugging, can compile mesa/libdrm or kernel with specific patches.
Created attachment 145250 [details] journalctl log Hello David, thanks for the report. I've reproduced the issue on my SKL (Intel® HD Graphics 520) with ubuntu 18.04 and mesa commit cf652205cff25dbb0d8c0f642f8a6d097e51a010 (around the first commit with iris support). The machine freezes when Wayland is set and MESA_LOADER_DRIVER_OVERRIDE=iris enabled. Also, I've tried to reproduce the issue on my KBL (Intel® UHD Graphics 620) - no freeze. I attach journalctl log
UPD - the issue is also actual on KBL (Intel® UHD Graphics 620). Also, I've checked the issue with the latest version of drm-tip - the issue is also actual.
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