Running on Fedora rawhide, kernel 6.1, I cannot get Fedora to load the Intel Arc / Intel integrated graphics devices on a cold boot.
Fedora will seemingly freeze just before the loading screen / login. It gets down to the point of ‘force_probe … tainting kernel’ and then proceeds no further.
I have set the
WaylandEnabled=false setting in gdm conf, and I have also added an i915.conf under /etc/modprobe.d that has:
options i915 force_probe=5690
I have also added the latest Intel gpu firmware to
/lib/firmware/updates/i915. The logs below indicate they are used.
Still, the only way I can get into Fedora on a cold boot is by editing grub2 and setting
nomodeset. Once I am inside, I check the logs for anything mentioning VGA, guc, huc, and there is nothing.
If I reboot at this point and log back in (still
nomodeset), then I start to see the GPU in
lspci -nnv | grep -i "vga" 00:02.0 VGA compatible controller : Intel Corporation Alder Lake-P Integrated Graphics Controller [8086:46a6] (rev 0c) (prog-if 00 [VGA controller]) 03:00.0 VGA compatible controller : Intel Corporation DG2 [Arc A770M] [8086:5690] (rev 08) (prog-if 00 [VGA controller])
At this point, if I edit grub2 conf and remove
nomodeset, then reboot, the GPU is loaded and I am using the device (Settings indicates the card is in use, and does not say Software Rendering). However, here are some logs that look curious regarding HuC/GuC and I do not know what they mean or if they contribute to this issue:
[ 10.776214] i915 0000:00:02.0: [drm] GuC error state capture buffer maybe too small: 2097152 < 2360316 (min = 786772) [ 10.780530] i915 0000:00:02.0: [drm] GuC firmware i915/adlp_guc_70.bin version 70.5.1 [ 10.780542] i915 0000:00:02.0: [drm] HuC firmware i915/tgl_huc.bin version 7.9.3 [ 10.795827] i915 0000:00:02.0: [drm] HuC authenticated [ 10.796623] i915 0000:00:02.0: [drm] GuC submission enabled [ 10.796631] i915 0000:00:02.0: [drm] GuC SLPC enabled [ 10.797263] i915 0000:00:02.0: [drm] GuC RC: enabled [ 10.812205] i915 0000:03:00.0: [drm] Incompatible option enable_guc=3 - HuC is not supported! [ 10.949684] i915 0000:03:00.0: [drm] GuC error state capture buffer maybe too small: 2097152 < 3737592 (min = 1245864) [ 10.954581] i915 0000:03:00.0: [drm] GuC firmware i915/dg2_guc_70.bin version 70.5.1 [ 10.967389] i915 0000:03:00.0: [drm] GuC submission enabled [ 10.967399] i915 0000:03:00.0: [drm] GuC SLPC enabled [ 10.967837] i915 0000:03:00.0: [drm] GuC RC: enabled
At this point, I can reboot as much as I like and the GPU will be used. However, if I shutdown, then power back on, Fedora freezes again and I have to revert back to
nomodeset. I have also tried
enable_guc=1 in i915.conf - the problem still persists.
What is the difference here between a cold and warm boot in regards to device discovery / driver loading? Is something extra needed for this to work from a cold boot? I feel like I am close to getting this working but its driving me crazy.
How did this poster get it to work on Fedora? I am using an Intel NUC 12th gen alder lake. I have seen a few other posts of people getting it to work without any mention of this sort of problem. They are doing the force_probe method, which sounds like most people are - but it is being really problematic for me. I’d even be happy at this point just to have the integrated graphics loaded if I can’t use DG2/Arc for a few months.