Hi,
I'm using Unraid 6.9.2 with Intel 12th gen 12600k which has UHD 770.
After searching quite a while, I found a method saying about i915.force_probe=4680 and followed the instruction but it didn't work.
In the syslog, below is all that looks about i915 (also attached full syslog)
Starts with:
Feb 23 04:07:33 Tower kernel: Linux version 5.10.28-Unraid (root@Develop) (gcc (GCC) 9.3.0, GNU ld version 2.33.1-slack15) #1 SMP Wed Apr 7 08:23:18 PDT 2021
Feb 23 04:07:33 Tower kernel: Command line: BOOT_IMAGE=/bzimage initrd=/bzroot i915.force_probe=4680
Feb 23 04:07:33 Tower kernel: x86/split lock detection: warning about user-space split_locks
Feb 23 04:07:33 Tower kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
Feb 23 04:07:33 Tower kernel: x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
Feb 23 04:07:33 Tower kernel: x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
Feb 23 04:07:33 Tower kernel: x86/fpu: Supporting XSAVE feature 0x200: 'Protection Keys User registers'
Feb 23 04:07:33 Tower kernel: x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
Feb 23 04:07:33 Tower kernel: x86/fpu: xstate_offset[9]: 832, xstate_sizes[9]: 8
Feb 23 04:07:33 Tower kernel: x86/fpu: Enabled xstate features 0x207, context size is 840 bytes, using 'compacted' format.
Feb 23 04:07:33 Tower kernel: BIOS-provided physical RAM map:
omitted
Feb 23 04:07:33 Tower kernel: percpu: Embedded 45 pages/cpu s145240 r8192 d30888 u262144
Feb 23 04:07:33 Tower kernel: pcpu-alloc: s145240 r8192 d30888 u262144 alloc=1*2097152
Feb 23 04:07:33 Tower kernel: pcpu-alloc: [0] 00 01 02 03 04 05 06 07 [0] 08 09 10 11 12 13 14 15
Feb 23 04:07:33 Tower kernel: Built 1 zonelists, mobility grouping on. Total pages: 8205059
Feb 23 04:07:33 Tower kernel: Policy zone: Normal
Feb 23 04:07:33 Tower kernel: Kernel command line: BOOT_IMAGE=/bzimage initrd=/bzroot i915.force_probe=4680
Feb 23 04:07:33 Tower kernel: Dentry cache hash table entries: 4194304 (order: 13, 33554432 bytes, linear)
Feb 23 04:07:33 Tower kernel: Inode-cache hash table entries: 2097152 (order: 12, 16777216 bytes, linear)
Feb 23 04:07:33 Tower kernel: mem auto-init: stack:off, heap alloc:off, heap free:off
In BIOS it's set to use 'IGD'. I tried the other one 'PEG' but no difference.
I tried using intel_gpu_top plugin with no luck.
Along with this, I cannot boot into GUI mode, it just blinks a single underscore character after lots of messages that appear when you boot in the default mode. I also tried putting nomodeset into syslinux but didn't work.
I just ignored it and decided not to use that mode at first, but it seems it's somehow related to this one too. (being not able to utilize iGPU).
I thought it might be solved when the RC3 comes out but since no one was complaing about this, I might be the only one with this problem so I came up with idea that it might not be solved in RC3 and that is why I'm posting this.