How to enable GuC for N5105?

Hi,

I have got a MeLE Quieter 3Q Mini PC with Celeron N5105 and installed LE nightly version. The system works perfect but it looks Jellyfin is not able to use the video card to transcode video and subtitle. If the client doesn't support the video format, it just stop playing. Only the audio transcoding works.

I did some search and I am sure the configuration on Jellyfin web app is correct, the only thing I am not sure is that if the driver is configured properly. It looks I need to enable GuC by adding something to /etc/modprobe.d/i915.conf

options i915 enable_fbc=1 enable_guc=3

However LE does not have this config file. I noticed some people said the necessary firmware is "ehl_guc_70.1.1.bin" and it's actually available already:

 # modinfo i915 | grep guc
firmware:       i915/skl_guc_70.1.1.bin
firmware:       i915/bxt_guc_70.1.1.bin
firmware:       i915/kbl_guc_70.1.1.bin
firmware:       i915/glk_guc_70.1.1.bin
firmware:       i915/kbl_guc_70.1.1.bin
firmware:       i915/kbl_guc_70.1.1.bin
firmware:       i915/cml_guc_70.1.1.bin
firmware:       i915/icl_guc_70.1.1.bin
firmware:       i915/ehl_guc_70.1.1.bin
firmware:       i915/ehl_guc_70.1.1.bin
firmware:       i915/tgl_guc_70.1.1.bin
firmware:       i915/tgl_guc_70.1.1.bin
firmware:       i915/dg1_guc_70.bin
firmware:       i915/tgl_guc_69.0.3.bin
firmware:       i915/tgl_guc_70.1.1.bin
firmware:       i915/tgl_guc_70.bin
firmware:       i915/adlp_guc_69.0.3.bin
firmware:       i915/adlp_guc_70.1.1.bin
firmware:       i915/adlp_guc_70.bin
firmware:       i915/dg2_guc_70.bin
parm:           enable_guc:Enable GuC load for GuC submission and/or HuC load. Required functionality can be selected using bitmask values. (-1=auto [default], 0=disable, 1=GuC submission, 2=HuC load) (int)
parm:           guc_log_level:GuC firmware logging level. Requires GuC to be loaded. (-1=auto [default], 0=disable, 1..4=enable with verbosity min..max) (int)
parm:           guc_firmware_path:GuC firmware path to use instead of the default one (charp)

I don't know if it means everything is setup correctly or I need to do some extra configuration. The fact is video transcoding is not working. It would be appreciated if anyone can let me know what to do.

the kernel is:

uname -r

6.1.9

Thanks in advance!

Quote from mglae

i915 is built into the kernel and cannot be configured via modprobe.

i915,enable_fbc=1 i915.enable_guc=3 has to be added to the kernel command line. Do

Code

mount -o remount,rw /flash

and edit /flash/syslinux.cfg

Thanks mglae. Can I ask how to edit this syslinux.cfg file? I tried to append the i915,enable_fbc=1 i915.enable_guc=3 to the end of the file but it didn't work:

# cat /flash/syslinux.cfg
DEFAULT linux
PROMPT 0

LABEL linux
 KERNEL /KERNEL
 APPEND boot=UUID=F63B-7AD8 disk=UUID=390293bc-8d49-44c6-899b-c140ad611242  quiet
 APPEND i915,enable_fbc=1 i915.enable_guc=3

Hey Chewitt,

Thanks but I meant the syntax of the syslinux.cfg file as simply appending the code seems didn't work

Thank you very much mglae, this works like a charm!