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sudo journalctl -b -o short-monotonic -k | egrep -i "i915|dmr|dmc|guc|huc"
[ 0.000000] debian kernel: Command line: BOOT_IMAGE=/vmlinuz-6.0.0-0.deb11.2-amd64 root=/dev/mapper/debian--vg-root ro intel_iommu=on i915.enable_guc=3 quiet
[ 0.025588] debian kernel: Kernel command line: BOOT_IMAGE=/vmlinuz-6.0.0-0.deb11.2-amd64 root=/dev/mapper/debian--vg-root ro intel_iommu=on i915.enable_guc=3 quiet
[ 1.687854] debian kernel: Setting dangerous option enable_guc - tainting kernel
[ 1.687861] debian kernel: Setting dangerous option enable_guc - tainting kernel
[ 1.688562] debian kernel: i915 0000:00:02.0: [drm] Incompatible option enable_guc=3 - GuC submission is N/A
[ 1.688985] debian kernel: i915 0000:00:02.0: [drm] VT-d active for gfx access
[ 1.688992] debian kernel: i915 0000:00:02.0: vgaarb: deactivate vga console
[ 1.689032] debian kernel: i915 0000:00:02.0: [drm] Using Transparent Hugepages
[ 1.705686] debian kernel: i915 0000:00:02.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0x0000
[ 1.705692] debian kernel: i915 0000:00:02.0: [drm] Failed to find VBIOS tables (VBT)
[ 1.705939] debian kernel: i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
[ 1.706004] debian kernel: i915 0000:00:02.0: firmware: direct-loading firmware i915/kbl_dmc_ver1_04.bin
[ 1.706313] debian kernel: i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
[ 2.327346] debian kernel: i915 0000:00:02.0: [drm] *ERROR* PPS state mismatch
[ 2.838570] debian kernel: i915 0000:00:02.0: [drm] failed to retrieve link info, disabling eDP
[ 2.838867] debian kernel: i915 0000:00:02.0: firmware: direct-loading firmware i915/kbl_guc_70.1.1.bin
[ 2.838973] debian kernel: i915 0000:00:02.0: firmware: direct-loading firmware i915/kbl_huc_4.0.0.bin
[ 2.844851] debian kernel: i915 0000:00:02.0: [drm] GuC firmware i915/kbl_guc_70.1.1.bin version 70.1
[ 2.844861] debian kernel: i915 0000:00:02.0: [drm] HuC firmware i915/kbl_huc_4.0.0.bin version 4.0
[ 2.854077] debian kernel: i915 0000:00:02.0: [drm] HuC authenticated
[ 2.854081] debian kernel: i915 0000:00:02.0: [drm] GuC submission disabled
[ 2.854082] debian kernel: i915 0000:00:02.0: [drm] GuC SLPC disabled
[ 2.854886] debian kernel: i915 0000:00:02.0: [drm] Resetting rcs'0 for CS error
[ 2.855782] debian kernel: i915 0000:00:02.0: [drm] Resetting bcs'0 for CS error
[ 2.856142] debian kernel: i915 0000:00:02.0: [drm] Resetting vcs'0 for CS error
[ 2.856411] debian kernel: i915 0000:00:02.0: [drm] Resetting vecs'0 for CS error
[ 2.857438] debian kernel: i915 0000:00:02.0: [drm] Resetting rcs'0 for CS error
[ 2.858579] debian kernel: i915 0000:00:02.0: [drm] Resetting bcs'0 for CS error
[ 2.858951] debian kernel: i915 0000:00:02.0: [drm] Resetting vcs'0 for CS error
[ 2.859347] debian kernel: i915 0000:00:02.0: [drm] Resetting vecs'0 for CS error
[ 3.063799] debian kernel: i915 0000:00:02.0: [drm:add_taint_for_CI [i915]] CI tainted:0x9 by intel_gt_init+0xb6/0x310 [i915]
[ 3.113610] debian kernel: [drm] Initialized i915 1.6.0 20201103 for 0000:00:02.0 on minor 0
[ 3.515223] debian kernel: i915 0000:00:02.0: [drm] Cannot find any crtc or sizes
[ 4.000857] debian kernel: i915 0000:00:02.0: [drm] Cannot find any crtc or sizes
[ 4.483338] debian kernel: i915 0000:00:02.0: [drm] Cannot find any crtc or sizes
root@debian:~# cat /sys/kernel/debug/dri/0/gt/uc/guc_info
GuC firmware: i915/kbl_guc_70.1.1.bin
status: AVAILABLE
version: wanted 70.1, found 70.1
uCode: 206592 bytes
RSA: 256 bytes
GuC status 0x00000001:
Bootrom status = 0x0
uKernel status = 0x0
MIA Core status = 0x0
Scratch registers:
0: 0x0
1: 0x0
2: 0x0
3: 0x0
4: 0x0
5: 0x0
6: 0x0
7: 0x0
8: 0x0
9: 0x0
10: 0x0
11: 0x0
12: 0x0
13: 0x0
14: 0x0
15: 0x0
GuC log relay not created
root@debian:~# cat /sys/kernel/debug/dri/0/gt/uc/huc_info
HuC firmware: i915/kbl_huc_4.0.0.bin
status: AVAILABLE
version: wanted 4.0, found 4.0
uCode: 225664 bytes
RSA: 256 bytes
HuC status: 0x00006080
可以解码,但是不知道低功耗解码是否生效
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