i915 drm_WARN_ON call trace during boot and broken suspend/resume
Hey.
This is on Debian sid's 6.0.5-1 on a Fujitsu Lifebook U7512, which has a 12th Gen Intel(R) Core(TM) i7-1270P (so some Iris Xe Graphics).
The following may be similar (the same?) than #6401 (closed), but the call trace there looks a bit different and the issue there wasn't really fixed it seems (well the reporter's BIOS received an update... but it's at best uncertain whether those of other affected people ever will).
During boot I always get:
[ 4.244709] ACPI: video: Video Device [GFX0] (multi-head: yes rom: no post: no)
[ 4.245468] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input1
[ 4.245918] ------------[ cut here ]------------
[ 4.245927] i915 0000:00:02.0: drm_WARN_ON(intel_dp->pps.vdd_wakeref)
[ 4.245948] WARNING: CPU: 14 PID: 103 at drivers/gpu/drm/i915/display/intel_pps.c:594 intel_pps_vdd_on_unlocked+0x29c/0x2b0 [i915]
[ 4.246148] Modules linked in: sd_mod usb_storage scsi_mod scsi_common i915 i2c_algo_bit drm_buddy drm_display_helper crc32c_intel drm_kms_helper nvme cec nvme_core xhci_pci rc_core xhci_hcd ttm t10_pi thunderbolt e1000e aesni_intel drm usbcore crc64_rocksoft crypto_simd crc64 evdev cryptd crc_t10dif ptp serio_raw crct10dif_generic pps_core crct10dif_pclmul usb_common crct10dif_common fan video
[ 4.246196] CPU: 14 PID: 103 Comm: kworker/u32:9 Not tainted 6.0.0-2-amd64 #1 Debian 6.0.5-1
[ 4.246203] Hardware name: FUJITSU CLIENT COMPUTING LIMITED LIFEBOOK U7512/FJNB2F4, BIOS Version 2.18 09/02/2022
[ 4.246208] Workqueue: events_unbound async_run_entry_fn
[ 4.246218] RIP: 0010:intel_pps_vdd_on_unlocked+0x29c/0x2b0 [i915]
[ 4.246366] Code: 4c 8b 67 50 4d 85 e4 75 03 4c 8b 27 e8 9d 4c a3 d2 48 c7 c1 70 a0 b1 c0 4c 89 e2 48 c7 c7 11 ce b2 c0 48 89 c6 e8 be 8f cf d2 <0f> 0b e9 f3 fd ff ff e8 38 e7 d3 d2 0f 1f 84 00 00 00 00 00 0f 1f
[ 4.246373] RSP: 0018:ffffba6c404f3900 EFLAGS: 00010282
[ 4.246377] RAX: 0000000000000000 RBX: ffff9c0a40a04170 RCX: 0000000000000000
[ 4.246382] RDX: 0000000000000001 RSI: 00000000ffffefff RDI: 00000000ffffffff
[ 4.246386] RBP: ffff9c0982728000 R08: 0000000000000000 R09: ffffba6c404f3788
[ 4.246389] R10: 0000000000000003 R11: ffffffff946d2128 R12: ffff9c09420151a0
[ 4.246393] R13: 0000000000000004 R14: ffff9c09827287e0 R15: 0000000000000000
[ 4.246397] FS: 0000000000000000(0000) GS:ffff9c18af780000(0000) knlGS:0000000000000000
[ 4.246401] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4.246405] CR2: 00007f5975c6c3b0 CR3: 0000000f8c410003 CR4: 0000000000770ee0
[ 4.246409] PKRU: 55555554
[ 4.246412] Call Trace:
[ 4.246417] <TASK>
[ 4.246419] ? __intel_display_power_get_domain.part.0+0x52/0x70 [i915]
[ 4.246601] ? intel_display_power_get+0x4e/0x60 [i915]
[ 4.246748] intel_dp_aux_xfer+0x127/0x7a0 [i915]
[ 4.246895] intel_dp_aux_transfer+0x121/0x320 [i915]
[ 4.247031] drm_dp_dpcd_access+0xaa/0x130 [drm_display_helper]
[ 4.247051] drm_dp_dpcd_probe+0x3f/0xf0 [drm_display_helper]
[ 4.247070] drm_dp_dpcd_read+0xbd/0x100 [drm_display_helper]
[ 4.247088] drm_dp_read_mst_cap+0x52/0x70 [drm_display_helper]
[ 4.247107] intel_dp_detect+0xe4/0x690 [i915]
[ 4.247240] drm_helper_probe_detect+0x48/0xb0 [drm_kms_helper]
[ 4.247263] drm_helper_probe_single_connector_modes+0x361/0x510 [drm_kms_helper]
[ 4.247287] drm_client_modeset_probe+0x221/0x1490 [drm]
[ 4.247339] ? preempt_count_add+0x6a/0xa0
[ 4.247346] ? update_load_avg+0x7e/0x730
[ 4.247352] __drm_fb_helper_initial_config_and_unlock+0x44/0x510 [drm_kms_helper]
[ 4.247375] ? ttwu_queue_wakelist+0xbf/0x110
[ 4.247381] intel_fbdev_initial_config+0x14/0x30 [i915]
[ 4.247517] async_run_entry_fn+0x2d/0x130
[ 4.247523] process_one_work+0x1c4/0x380
[ 4.247528] worker_thread+0x4d/0x380
[ 4.247533] ? rescuer_thread+0x3a0/0x3a0
[ 4.247538] kthread+0xe6/0x110
[ 4.247542] ? kthread_complete_and_exit+0x20/0x20
[ 4.247546] ret_from_fork+0x1f/0x30
[ 4.247553] </TASK>
[ 4.247555] ---[ end trace 0000000000000000 ]---
[ 4.250921] fbcon: i915drmfb (fb0) is primary device
[ 4.273648] Console: switching to colour frame buffer device 240x67
[ 4.292570] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device
But there doesn't seem to be any further problem because of this, or at least my X seems to work normally. Could however be, because it probably uses the modeset
automatically:
[ 121.441] (II) modeset(0): [DRI2] Setup complete
[ 121.441] (II) modeset(0): [DRI2] DRI driver: iris
[ 121.441] (II) modeset(0): [DRI2] VDPAU driver: va_gl
(just tell me if you need full dmesg, X log or else)
However, when suspending (to RAM) the machine (which takes already unusually long) and resuming it afterwards, things get completely crazy. The screen is either off/black and every now and then one sees X but with brightness severely reduced, sometimes one also sees kernel messages (I assume it switches to the konsole?).
I barely managed to do clean shutdown (trying to switch to the console and via ACPI power button event). Eventually, after a long while it powered off (cleanly).
These should be the relevant lines form the kernel log (as far as they made it there), from the beinngin of the suspend to the shutdown (respectivly the next boot):
2022-10-31T18:46:57.963719+01:00 heisenberg kernel: [ 2850.231878] wlan0: deauthenticating from 3c:a6:2f:a2:44:4c by local choice (Reason: 3=DEAUTH_LEAVING)
2022-10-31T18:46:58.749328+01:00 heisenberg kernel: [ 2851.015348] PM: suspend entry (s2idle)
2022-10-31T18:48:02.738503+01:00 heisenberg kernel: [ 2851.050525] Filesystems sync: 0.035 seconds
2022-10-31T18:48:02.738526+01:00 heisenberg kernel: [ 2851.050676] (NULL device *): firmware: direct-loading firmware i915/adlp_dmc_ver2_16.bin
2022-10-31T18:48:02.738528+01:00 heisenberg kernel: [ 2851.050766] (NULL device *): firmware: direct-loading firmware iwlwifi-so-a0-gf-a0.pnvm
2022-10-31T18:48:02.738530+01:00 heisenberg kernel: [ 2851.050776] (NULL device *): firmware: direct-loading firmware i915/adlp_guc_70.1.1.bin
2022-10-31T18:48:02.738530+01:00 heisenberg kernel: [ 2851.050786] (NULL device *): firmware: direct-loading firmware regulatory.db
2022-10-31T18:48:02.738531+01:00 heisenberg kernel: [ 2851.050807] (NULL device *): firmware: direct-loading firmware regulatory.db.p7s
2022-10-31T18:48:02.738532+01:00 heisenberg kernel: [ 2851.050811] (NULL device *): firmware: direct-loading firmware intel/sof-tplg/sof-hda-generic-2ch.tplg
2022-10-31T18:48:02.738533+01:00 heisenberg kernel: [ 2851.050881] (NULL device *): firmware: direct-loading firmware i915/tgl_huc_7.9.3.bin
2022-10-31T18:48:02.738533+01:00 heisenberg kernel: [ 2851.051225] (NULL device *): firmware: direct-loading firmware iwlwifi-so-a0-gf-a0-71.ucode
2022-10-31T18:48:02.738566+01:00 heisenberg kernel: [ 2851.051557] Freezing user space processes ... (elapsed 0.001 seconds) done.
2022-10-31T18:48:02.738567+01:00 heisenberg kernel: [ 2851.053534] OOM killer disabled.
2022-10-31T18:48:02.738568+01:00 heisenberg kernel: [ 2851.053535] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
2022-10-31T18:48:02.738568+01:00 heisenberg kernel: [ 2851.054613] printk: Suspending console(s) (use no_console_suspend to debug)
2022-10-31T18:48:02.738569+01:00 heisenberg kernel: [ 2851.457249] intel-hid INTC1070:00: failed to get button capability
2022-10-31T18:48:02.738569+01:00 heisenberg kernel: [ 2851.457515] e1000e: EEE TX LPI TIMER: 00000011
2022-10-31T18:48:02.738569+01:00 heisenberg kernel: [ 2851.898579] ------------[ cut here ]------------
2022-10-31T18:48:02.738570+01:00 heisenberg kernel: [ 2851.898580] i915 0000:00:02.0: i915 raw-wakerefs=1 wakelocks=1 on cleanup
2022-10-31T18:48:02.738570+01:00 heisenberg kernel: [ 2851.898628] WARNING: CPU: 2 PID: 19825 at drivers/gpu/drm/i915/intel_runtime_pm.c:629 intel_runtime_pm_driver_release+0x4d/0x60 [i915]
2022-10-31T18:48:02.738571+01:00 heisenberg kernel: [ 2851.898672] Modules linked in: cpuid snd_ctl_led snd_soc_skl_hda_dsp snd_soc_intel_hda_dsp_common snd_soc_hdac_hdmi snd_sof_probes snd_sof_pci_intel_tgl snd_sof_intel_hda_common snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_sof_utils cmac ctr ccm joydev snd_soc_dmic mei_hdcp hid_multitouch iTCO_wdt intel_pmc_bxt iTCO_vendor_support hid_generic intel_rapl_msr wmi_bmof watchdog x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel rapl intel_cstate intel_uncore pcspkr snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio soundwire_intel soundwire_generic_allocation soundwire_cadence snd_soc_hdac_hda snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_compress soundwire_bus snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep snd_pcm sdhci_pci cqhci snd_timer iwlmvm snd sdhci i2c_i801 btusb mei_me i2c_smbus soundcore mmc_core btrtl btbcm mei btintel
2022-10-31T18:48:02.738576+01:00 heisenberg kernel: [ 2851.898696] mac80211 btmtk bluetooth libarc4 intel_lpss_pci intel_lpss idma64 uvcvideo iwlwifi videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common jitterentropy_rng videodev sha512_ssse3 cfg80211 sha512_generic mc drbg ansi_cprng ecdh_generic ecc crc16 processor_thermal_device_pci ucsi_acpi processor_thermal_device typec_ucsi processor_thermal_rfim processor_thermal_mbox roles processor_thermal_rapl intel_rapl_common typec int340x_thermal_zone wmi battery button i2c_hid_acpi i2c_hid hid intel_hid int3400_thermal acpi_thermal_rel intel_pmc_core fujitsu_laptop sparse_keymap acpi_tad acpi_pad rfkill xt_tcpudp ip6t_REJECT nf_reject_ipv6 ac xt_comment ipt_REJECT nf_reject_ipv4 xt_multiport xt_policy xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_compat nf_tables binfmt_misc nfnetlink loop drivetemp parport_pc ppdev lp parport fuse efi_pstore configfs ip_tables x_tables autofs4 dm_crypt dm_mod efivarfs raid10 raid456 async_raid6_recov async_memcpy async_pq
2022-10-31T18:48:02.738576+01:00 heisenberg kernel: [ 2851.898720] async_xor async_tx raid1 raid0 multipath linear md_mod btrfs blake2b_generic libcrc32c crc32c_generic xor raid6_pq zstd_compress uhci_hcd ehci_pci ehci_hcd sd_mod usb_storage scsi_mod scsi_common i915 i2c_algo_bit drm_buddy drm_display_helper drm_kms_helper cec rc_core xhci_pci crc32c_intel xhci_hcd ttm nvme nvme_core e1000e aesni_intel drm thunderbolt t10_pi crypto_simd usbcore evdev cryptd crc64_rocksoft ptp serio_raw crc64 crc_t10dif pps_core crct10dif_generic usb_common crct10dif_pclmul crct10dif_common fan video [last unloaded: snd_sof_utils]
2022-10-31T18:48:02.738577+01:00 heisenberg kernel: [ 2851.898738] CPU: 2 PID: 19825 Comm: kworker/u32:3 Tainted: G W 6.0.0-2-amd64 #1 Debian 6.0.5-1
2022-10-31T18:48:02.738577+01:00 heisenberg kernel: [ 2851.898740] Hardware name: FUJITSU CLIENT COMPUTING LIMITED LIFEBOOK U7512/FJNB2F4, BIOS Version 2.18 09/02/2022
2022-10-31T18:48:02.738578+01:00 heisenberg kernel: [ 2851.898741] Workqueue: events_unbound async_run_entry_fn
2022-10-31T18:48:02.738579+01:00 heisenberg kernel: [ 2851.898746] RIP: 0010:intel_runtime_pm_driver_release+0x4d/0x60 [i915]
2022-10-31T18:48:02.738579+01:00 heisenberg kernel: [ 2851.898770] Code: b7 d9 48 8b 6f 50 48 85 ed 75 03 48 8b 2f e8 ea a1 64 ef 45 89 e0 89 d9 48 89 ea 48 89 c6 48 c7 c7 68 84 81 c0 e8 0d e5 90 ef <0f> 0b 5b 5d 41 5c c3 cc cc cc cc 0f 1f 84 00 00 00 00 00 0f 1f 44
2022-10-31T18:48:02.738580+01:00 heisenberg kernel: [ 2851.898771] RSP: 0018:ffffb23c0ad57db8 EFLAGS: 00010282
2022-10-31T18:48:02.738580+01:00 heisenberg kernel: [ 2851.898772] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
2022-10-31T18:48:02.738580+01:00 heisenberg kernel: [ 2851.898772] RDX: 0000000000000001 RSI: ffffffffb077ed12 RDI: 00000000ffffffff
2022-10-31T18:48:02.738581+01:00 heisenberg kernel: [ 2851.898773] RBP: ffff95d102034480 R08: ffffffffb0e620e0 R09: 0000000000000000
2022-10-31T18:48:02.738581+01:00 heisenberg kernel: [ 2851.898773] R10: ffffffffffffffff R11: ffffffffb174d1ca R12: 0000000000000001
2022-10-31T18:48:02.738581+01:00 heisenberg kernel: [ 2851.898774] R13: ffff95d14227a210 R14: 0000000000000000 R15: ffff95d27bec4aa8
2022-10-31T18:48:02.738582+01:00 heisenberg kernel: [ 2851.898774] FS: 0000000000000000(0000) GS:ffff95e06f480000(0000) knlGS:0000000000000000
2022-10-31T18:48:02.738582+01:00 heisenberg kernel: [ 2851.898775] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
2022-10-31T18:48:02.738582+01:00 heisenberg kernel: [ 2851.898775] CR2: 00005586c0967e16 CR3: 0000000a7e410004 CR4: 0000000000770ee0
2022-10-31T18:48:02.738583+01:00 heisenberg kernel: [ 2851.898776] PKRU: 55555554
2022-10-31T18:48:02.738584+01:00 heisenberg kernel: [ 2851.898777] Call Trace:
2022-10-31T18:48:02.738584+01:00 heisenberg kernel: [ 2851.898779] <TASK>
2022-10-31T18:48:02.738585+01:00 heisenberg kernel: [ 2851.898780] i915_drm_suspend_late+0xf0/0x110 [i915]
2022-10-31T18:48:02.738585+01:00 heisenberg kernel: [ 2851.898801] ? pci_pm_poweroff_late+0x40/0x40
2022-10-31T18:48:02.738586+01:00 heisenberg kernel: [ 2851.898804] dpm_run_callback+0x47/0x150
2022-10-31T18:48:02.738586+01:00 heisenberg kernel: [ 2851.898806] __device_suspend_late+0x94/0x1c0
2022-10-31T18:48:02.738587+01:00 heisenberg kernel: [ 2851.898807] async_suspend_late+0x1a/0x80
2022-10-31T18:48:02.738587+01:00 heisenberg kernel: [ 2851.898808] async_run_entry_fn+0x2d/0x130
2022-10-31T18:48:02.738588+01:00 heisenberg kernel: [ 2851.898810] process_one_work+0x1c4/0x380
2022-10-31T18:48:02.738588+01:00 heisenberg kernel: [ 2851.898812] worker_thread+0x4d/0x380
2022-10-31T18:48:02.738588+01:00 heisenberg kernel: [ 2851.898814] ? _raw_spin_lock_irqsave+0x23/0x50
2022-10-31T18:48:02.738589+01:00 heisenberg kernel: [ 2851.898816] ? rescuer_thread+0x3a0/0x3a0
2022-10-31T18:48:02.738589+01:00 heisenberg kernel: [ 2851.898817] kthread+0xe6/0x110
2022-10-31T18:48:02.738589+01:00 heisenberg kernel: [ 2851.898818] ? kthread_complete_and_exit+0x20/0x20
2022-10-31T18:48:02.738590+01:00 heisenberg kernel: [ 2851.898819] ret_from_fork+0x1f/0x30
2022-10-31T18:48:02.738590+01:00 heisenberg kernel: [ 2851.898822] </TASK>
2022-10-31T18:48:02.738591+01:00 heisenberg kernel: [ 2851.898822] ---[ end trace 0000000000000000 ]---
2022-10-31T18:48:02.738591+01:00 heisenberg kernel: [ 2851.921051] ACPI: EC: interrupt blocked
2022-10-31T18:48:02.738591+01:00 heisenberg kernel: [ 2906.906259] ACPI: EC: interrupt unblocked
2022-10-31T18:48:02.738592+01:00 heisenberg kernel: [ 2907.275160] i915 0000:00:02.0: [drm] GuC firmware i915/adlp_guc_70.1.1.bin version 70.1
2022-10-31T18:48:02.738592+01:00 heisenberg kernel: [ 2907.275164] i915 0000:00:02.0: [drm] HuC firmware i915/tgl_huc_7.9.3.bin version 7.9
2022-10-31T18:48:02.738593+01:00 heisenberg kernel: [ 2907.283115] intel-hid INTC1070:00: failed to get button capability
2022-10-31T18:48:02.738593+01:00 heisenberg kernel: [ 2907.289841] nvme nvme0: Shutdown timeout set to 10 seconds
2022-10-31T18:48:02.738593+01:00 heisenberg kernel: [ 2907.292010] i915 0000:00:02.0: [drm] HuC authenticated
2022-10-31T18:48:02.738594+01:00 heisenberg kernel: [ 2907.292469] nvme nvme0: 16/0/0 default/read/poll queues
2022-10-31T18:48:02.738594+01:00 heisenberg kernel: [ 2907.293774] i915 0000:00:02.0: [drm] GuC submission enabled
2022-10-31T18:48:02.738594+01:00 heisenberg kernel: [ 2907.293774] i915 0000:00:02.0: [drm] GuC SLPC enabled
2022-10-31T18:48:02.738595+01:00 heisenberg kernel: [ 2907.294442] i915 0000:00:02.0: [drm] GuC RC: enabled
2022-10-31T18:48:02.738595+01:00 heisenberg kernel: [ 2908.177787] i915 0000:00:02.0: [drm] *ERROR* Failed to write source OUI
2022-10-31T18:48:02.738595+01:00 heisenberg kernel: [ 2912.878117] i915 0000:00:02.0: [drm] *ERROR* [ENCODER:235:DDI A/PHY A][DPRX] Failed to enable link training
2022-10-31T18:48:02.738596+01:00 heisenberg kernel: [ 2914.211725] i915 0000:00:02.0: [drm] *ERROR* Failed to read current backlight control mode: -110
2022-10-31T18:48:02.738596+01:00 heisenberg kernel: [ 2915.629706] OOM killer enabled.
2022-10-31T18:48:02.742542+01:00 heisenberg kernel: [ 2915.629708] Restarting tasks ...
2022-10-31T18:48:02.742551+01:00 heisenberg kernel: [ 2915.630167] mei_hdcp 0000:00:16.0-b638ab7e-94e2-4ea2-a552-d1c54b627f04: bound 0000:00:02.0 (ops i915_hdcp_component_ops [i915])
2022-10-31T18:48:02.742553+01:00 heisenberg kernel: [ 2915.630691] done.
2022-10-31T18:48:02.742554+01:00 heisenberg kernel: [ 2915.630697] random: crng reseeded on system resumption
2022-10-31T18:48:02.802262+01:00 heisenberg kernel: [ 2915.689970] PM: suspend exit
2022-10-31T18:48:02.902260+01:00 heisenberg kernel: [ 2915.789990] e1000e 0000:00:1f.6 eth0: NIC Link is Down
2022-10-31T18:48:04.666255+01:00 heisenberg kernel: [ 2917.557318] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:48:05.734257+01:00 heisenberg kernel: [ 2918.622352] wlan0: authenticate with 3c:a6:2f:a2:44:4c
2022-10-31T18:48:05.790257+01:00 heisenberg kernel: [ 2918.677582] wlan0: Invalid HE elem, Disable HE
2022-10-31T18:48:05.798248+01:00 heisenberg kernel: [ 2918.686372] wlan0: send auth to 3c:a6:2f:a2:44:4c (try 1/3)
2022-10-31T18:48:05.994250+01:00 heisenberg kernel: [ 2918.882865] wlan0: authenticate with 3c:a6:2f:a2:44:4c
2022-10-31T18:48:06.018246+01:00 heisenberg kernel: [ 2918.905570] wlan0: send auth to 3c:a6:2f:a2:44:4c (try 1/3)
2022-10-31T18:48:06.054246+01:00 heisenberg kernel: [ 2918.942822] wlan0: authenticated
2022-10-31T18:48:06.078246+01:00 heisenberg kernel: [ 2918.965564] wlan0: associate with 3c:a6:2f:a2:44:4c (try 1/3)
2022-10-31T18:48:06.078248+01:00 heisenberg kernel: [ 2918.968528] wlan0: RX AssocResp from 3c:a6:2f:a2:44:4c (capab=0x1511 status=0 aid=2)
2022-10-31T18:48:06.090250+01:00 heisenberg kernel: [ 2918.980976] wlan0: associated
2022-10-31T18:48:06.178250+01:00 heisenberg kernel: [ 2919.066229] wlan0: Limiting TX power to 27 (30 - 3) dBm as advertised by 3c:a6:2f:a2:44:4c
2022-10-31T18:48:06.246250+01:00 heisenberg kernel: [ 2919.135065] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
2022-10-31T18:48:07.334262+01:00 heisenberg kernel: [ 2920.222432] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:48:10.702258+01:00 heisenberg kernel: [ 2923.591678] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:48:16.122255+01:00 heisenberg kernel: [ 2929.011109] i915 0000:00:02.0: [drm] *ERROR* Failed to write source OUI
2022-10-31T18:48:20.830263+01:00 heisenberg kernel: [ 2933.718899] i915 0000:00:02.0: [drm] *ERROR* [ENCODER:235:DDI A/PHY A][DPRX] Failed to enable link training
2022-10-31T18:48:22.162349+01:00 heisenberg kernel: [ 2935.052744] i915 0000:00:02.0: [drm] *ERROR* Failed to read current backlight control mode: -110
2022-10-31T18:48:24.838257+01:00 heisenberg kernel: [ 2937.728215] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:48:28.866258+01:00 heisenberg kernel: [ 2941.755569] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:48:31.530262+01:00 heisenberg kernel: [ 2944.419025] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:48:34.918255+01:00 heisenberg kernel: [ 2947.805484] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:48:38.250259+01:00 heisenberg kernel: [ 2951.139836] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:48:43.674256+01:00 heisenberg kernel: [ 2956.562996] i915 0000:00:02.0: [drm] *ERROR* Failed to write source OUI
2022-10-31T18:48:48.378255+01:00 heisenberg kernel: [ 2961.266529] i915 0000:00:02.0: [drm] *ERROR* [ENCODER:235:DDI A/PHY A][DPRX] Failed to enable link training
2022-10-31T18:48:49.710256+01:00 heisenberg kernel: [ 2962.600311] i915 0000:00:02.0: [drm] *ERROR* Failed to read current backlight control mode: -110
2022-10-31T18:48:52.378257+01:00 heisenberg kernel: [ 2965.268371] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:48:55.742257+01:00 heisenberg kernel: [ 2968.630377] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:48:59.070256+01:00 heisenberg kernel: [ 2971.960496] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:49:05.342262+01:00 heisenberg kernel: [ 2978.231019] i915 0000:00:02.0: [drm] *ERROR* Failed to write source OUI
2022-10-31T18:49:10.046264+01:00 heisenberg kernel: [ 2982.934708] i915 0000:00:02.0: [drm] *ERROR* [ENCODER:235:DDI A/PHY A][DPRX] Failed to enable link training
2022-10-31T18:49:11.378308+01:00 heisenberg kernel: [ 2984.268788] i915 0000:00:02.0: [drm] *ERROR* Failed to read current backlight control mode: -110
2022-10-31T18:49:14.050253+01:00 heisenberg kernel: [ 2986.938395] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:49:17.390258+01:00 heisenberg kernel: [ 2990.280922] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:49:20.062251+01:00 heisenberg kernel: [ 2992.952600] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T18:49:25.498268+01:00 heisenberg kernel: [ 2998.385459] i915 0000:00:02.0: [drm] *ERROR* Failed to write source OUI
2022-10-31T18:49:30.206260+01:00 heisenberg kernel: [ 3003.094811] i915 0000:00:02.0: [drm] *ERROR* [ENCODER:235:DDI A/PHY A][DPRX] Failed to enable link training
2022-10-31T18:49:31.538342+01:00 heisenberg kernel: [ 3004.428906] i915 0000:00:02.0: [drm] *ERROR* Failed to read current backlight control mode: -110
2022-10-31T18:49:34.226263+01:00 heisenberg kernel: [ 3007.115884] i915 0000:00:02.0: [drm] *ERROR* Failed to read DPCD register 0x92
2022-10-31T20:51:13.911981+01:00 heisenberg kernel: [ 0.000000] Linux version 6.0.0-2-amd64 (debian-kernel@lists.debian.org) (gcc-12 (Debian 12.2.0-7) 12.2.0, GNU ld (GNU Binutils for Debian) 2.39) #1 SMP PREEMPT_DYNAMIC Debian 6.0.5-1 (2022-10-28)
Is there any chance to get that fixed for people whose vendors don't fix the BIOS (if that's actually the root cause)?
Thanks, Chris.