Dmesg
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<6> [375.882257] [IGT] i915_selftest: starting dynamic subtest workarounds
<5> [376.122363] Setting dangerous option live_selftests - tainting kernel
<7> [376.173350] i915 0000:03:00.0: [drm:intel_gt_common_init_early [i915]] WOPCM: 2048K
<7> [376.173604] i915 0000:03:00.0: [drm:intel_uc_init_early [i915]] GT0: enable_guc=3 (guc:yes submission:yes huc:yes slpc:yes)
<7> [376.173881] i915 0000:03:00.0: [drm:intel_gt_probe_all [i915]] GT0: Setting up Primary GT
<7> [376.174188] i915 0000:03:00.0: [drm:i915_driver_probe [i915]] rawclk rate: 38400 kHz
<7> [376.174688] i915 0000:03:00.0: [drm:intel_engines_init_mmio [i915]] GT0: vdbox enable: 0005, instances: 0005
<7> [376.174848] i915 0000:03:00.0: [drm:intel_engines_init_mmio [i915]] GT0: vebox enable: 0003, instances: 0003
<7> [376.175594] i915 0000:03:00.0: [drm:i915_ggtt_probe_hw [i915]] GGTT size = 4096M
<7> [376.175780] i915 0000:03:00.0: [drm:i915_ggtt_probe_hw [i915]] GMADR size = 0M
<7> [376.175941] i915 0000:03:00.0: [drm:i915_ggtt_probe_hw [i915]] DSM size = 0M
<6> [376.176098] i915 0000:03:00.0: [drm] VT-d active for gfx access
<6> [376.176104] i915 0000:03:00.0: vgaarb: deactivate vga console
<7> [376.176549] i915 0000:03:00.0: [drm:i915_gem_init_stolen [i915]] GEN6_STOLEN_RESERVED = 0x00000003ffc00147
<7> [376.176759] i915 0000:03:00.0: [drm:i915_gem_init_stolen [i915]] Memory reserved for graphics device: 24576K, usable: 20480K
<7> [376.177181] i915 0000:03:00.0: [drm:intel_memory_regions_hw_probe [i915]] Memory region(0): system-ttm: 15887 MiB [mem 0x00000000-0x3e0f9ffff], io: n/a
<7> [376.177332] i915 0000:03:00.0: [drm:intel_memory_regions_hw_probe [i915]] Memory region(1): local0: 16288 MiB [mem 0x00000000-0x3f9ffffff], io: 16288 MiB [mem 0x4000000000-0x43f9ffffff]
<7> [376.177477] i915 0000:03:00.0: [drm:intel_memory_regions_hw_probe [i915]] Memory region(6): stolen-local: 20 MiB [mem 0x3fe800000-0x3ffbfffff], io: 20 MiB [mem 0x43fe800000-0x43ffbfffff]
<7> [376.177875] i915 0000:03:00.0: [drm:intel_opregion_setup [i915]] graphic opregion physical addr: 0x0
<7> [376.178075] i915 0000:03:00.0: [drm:intel_opregion_setup [i915]] ACPI OpRegion not supported!
<7> [376.179092] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Set default to SSC at 120000 kHz
<7> [376.221187] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found valid VBT in SPI flash
<7> [376.221396] i915 0000:03:00.0: [drm:intel_bios_init [i915]] VBT signature "$VBT DASH G2 ", BDB version 249
<7> [376.221611] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 1 (size 6, min size 7)
<7> [376.221848] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 2 (size 395, min size 5)
<7> [376.222061] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 9 (size 100, min size 100)
<7> [376.222274] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 12 (size 19, min size 19)
<7> [376.222485] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 27 (size 812, min size 812)
<7> [376.222713] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 40 (size 34, min size 34)
<7> [376.222920] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Generating LFP data table pointers
<7> [376.223140] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 41 (size 148, min size 148)
<7> [376.223353] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 42 (size 1366, min size 1366)
<7> [376.223566] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 43 (size 305, min size 305)
<7> [376.223787] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 44 (size 78, min size 78)
<7> [376.224000] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 52 (size 822, min size 822)
<7> [376.224212] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found BDB block 56 (size 210, min size 210)
<7> [376.224417] i915 0000:03:00.0: [drm:intel_bios_init [i915]] BDB_GENERAL_FEATURES int_tv_support 0 int_crt_support 0 lvds_use_ssc 0 lvds_ssc_freq 120000 display_clock_mode 1 fdi_rx_polarity_inverted 0
<7> [376.224622] i915 0000:03:00.0: [drm:intel_bios_init [i915]] crt_ddc_bus_pin: 2
<7> [376.224835] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found VBT child device with type 0x68c6
<7> [376.225047] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found VBT child device with type 0x60d6
<7> [376.225257] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found VBT child device with type 0x60d6
<7> [376.225467] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Found VBT child device with type 0x60d6
<7> [376.225688] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Skipping SDVO device mapping
<7> [376.225894] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Port A VBT info: CRT:0 DVI:0 HDMI:0 DP:1 eDP:0 DSI:0 DP++:0 LSPCON:0 USB-Type-C:0 TBT:0 DSC:0
<7> [376.226099] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Port A VBT HDMI level shift: 9
<7> [376.226304] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Port B VBT info: CRT:0 DVI:1 HDMI:1 DP:1 eDP:0 DSI:0 DP++:1 LSPCON:0 USB-Type-C:0 TBT:0 DSC:0
<7> [376.226509] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Port B VBT HDMI level shift: 9
<7> [376.226724] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Port C VBT info: CRT:0 DVI:1 HDMI:1 DP:1 eDP:0 DSI:0 DP++:1 LSPCON:0 USB-Type-C:0 TBT:0 DSC:0
<7> [376.226931] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Port C VBT HDMI level shift: 9
<7> [376.227136] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Port H VBT info: CRT:0 DVI:1 HDMI:1 DP:1 eDP:0 DSI:0 DP++:1 LSPCON:0 USB-Type-C:0 TBT:0 DSC:0
<7> [376.227341] i915 0000:03:00.0: [drm:intel_bios_init [i915]] Port H VBT HDMI level shift: 9
<7> [376.227550] i915 0000:03:00.0: [drm:intel_power_domains_init [i915]] Allowed DC state mask 09
<7> [376.227780] i915 0000:03:00.0: [drm:gen9_set_dc_state.part.0 [i915]] Setting DC state from 00 to 00
<7> [376.228062] i915 0000:03:00.0: [drm:intel_power_well_enable [i915]] enabling PW_1
<7> [376.228311] i915 0000:03:00.0: [drm:intel_cdclk_dump_config [i915]] Current CDCLK 163200 kHz, VCO 1305600 kHz, ref 38400 kHz, bypass 19200 kHz, voltage level 0
<7> [376.228576] i915 0000:03:00.0: [drm:gen9_dbuf_slices_update [i915]] Updating dbuf slices to 0x1
<7> [376.255809] i915 0000:03:00.0: [drm:intel_power_well_enable [i915]] enabling always-on
<7> [376.256020] i915 0000:03:00.0: [drm:intel_power_well_enable [i915]] enabling DC_off
<7> [376.256229] i915 0000:03:00.0: [drm:gen9_set_dc_state.part.0 [i915]] Setting DC state from 00 to 00
<7> [376.256497] i915 0000:03:00.0: [drm:intel_power_well_enable [i915]] enabling PW_2
<7> [376.256741] i915 0000:03:00.0: [drm:intel_power_well_enable [i915]] enabling PW_A
<7> [376.256989] i915 0000:03:00.0: [drm:intel_power_well_enable [i915]] enabling PW_B
<7> [376.257205] i915 0000:03:00.0: [drm:intel_power_well_enable [i915]] enabling PW_C
<7> [376.257418] i915 0000:03:00.0: [drm:intel_power_well_enable [i915]] enabling PW_D
<7> [376.257922] i915 0000:03:00.0: [drm:intel_dmc_init [i915]] Loading i915/dg2_dmc_ver2_08.bin
<7> [376.258781] i915 0000:03:00.0: [drm:dmc_load_work_fn [i915]] DMC 0:
<7> [376.258995] i915 0000:03:00.0: [drm:dmc_load_work_fn [i915]] mmio[0]: 0x8f074 = 0x86fc0
<7> [376.259094] i915 0000:03:00.0: [drm:intel_fbc_init [i915]] Sanitized enable_fbc value: 1
<7> [376.259202] i915 0000:03:00.0: [drm:dmc_load_work_fn [i915]] mmio[1]: 0x8f034 = 0xc003b400 (EVT_CTL)
<7> [376.259404] i915 0000:03:00.0: [drm:dmc_load_work_fn [i915]] mmio[2]: 0x8f004 = 0x1240108 (EVT_HTP)
<7> [376.259606] i915 0000:03:00.0: [drm:dmc_load_work_fn [i915]] mmio[3]: 0x8f038 = 0xc003b200 (EVT_CTL)
<7> [376.259821] i915 0000:03:00.0: [drm:dmc_load_work_fn [i915]] mmio[4]: 0x8f008 = 0x153c13f4 (EVT_HTP)
<7> [376.260002] i915 0000:03:00.0: [drm:skl_wm_init [i915]] SAGV supported: no, original SAGV block time: 10 us
<7> [376.260036] i915 0000:03:00.0: [drm:dmc_load_work_fn [i915]] DMC 1:
<7> [376.260239] i915 0000:03:00.0: [drm:dmc_load_work_fn [i915]] mmio[0]: 0x5f074 = 0x96fc0