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glenb77

Member

Registered: 2014-10-02

Posts: 68

i915 many warnings/traces in dmesg and keyboard issue hp-dq200 laptop

Picked up a new laptop: HP dq203 over holiday.
This on the tiger lake intel platform. The dmesg output has many warnings and traces related to i915 drm. The laptop works but also it can take up to two minutes before the keyboard can be used. I don't know if these two things are related or not. Sometimes the keyboard comes up immediately. These two issues are present when booting from an arch install usb, so they are not related to xorg or graphical desktop. I put atkbd and i8024 and i915 in modules in mkinitcpio which did not help. I am wondering if there may be any module options for i915 that may stop the warnings and any suggestion or direction someone can give about the keyboard issue. Trace/Warning looks like below. there are many of them.

i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/tgl_dmc_ver2_12.bin (v2.12)
[    0.965770] Btrfs loaded, crc32c=crc32c-intel, zoned=yes, fsverity=yes
[    0.966421] BTRFS: device fsid 8607f44e-99b3-4123-8a26-40d687407cd0 devid 1 transid 2110 /dev/sda5 scanned by systemd-udevd (190)
[    0.972058] ------------[ cut here ]------------
[    0.972059] i915 0000:00:02.0: drm_WARN_ON(val == 0xffffffff)
[    0.972071] WARNING: CPU: 4 PID: 178 at drivers/gpu/drm/i915/display/intel_tc.c:761 intel_tc_port_init+0x1db/0x1f0 [i915]
[    0.972174] Modules linked in: btrfs i915(+) blake2b_generic libcrc32c crc32c_generic crc32c_intel xor raid6_pq intel_gtt video ttm vmd
[    0.972180] CPU: 4 PID: 178 Comm: modprobe Tainted: G     U            5.15.5-1-ck-generic-v4 #1 b59415a89d65bc95eb55c0771b0fded3cd32c649
[    0.972183] Hardware name: HP HP Laptop 14-dq2xxx/87FD, BIOS F.16 10/15/2021
[    0.972184] RIP: 0010:intel_tc_port_init+0x1db/0x1f0 [i915]
[    0.972257] Code: 4c 8b 67 50 4d 85 e4 75 03 4c 8b 27 e8 ce 84 46 ee 48 c7 c1 28 30 3e c0 4c 89 e2 48 c7 c7 c1 19 40 c0 48 89 c6 e8 41 15 83 ee <0f> 0b e9 47 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f
[    0.972258] RSP: 0018:ffffb737007339d8 EFLAGS: 00010246
[    0.972259] RAX: 0000000000000000 RBX: ffff892947e92000 RCX: 0000000000000000
[    0.972260] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[    0.972261] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[    0.972261] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8929416f2620
[    0.972262] R13: 00000000ffffffff R14: ffff892947e92fa0 R15: 00000000ffffffff
[    0.972263] FS:  00007ff2cd07a740(0000) GS:ffff8929bbb00000(0000) knlGS:0000000000000000
[    0.972264] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.972265] CR2: 00007f1d57682bf0 CR3: 0000000102d32004 CR4: 0000000000770ee0
[    0.972266] PKRU: 55555554
[    0.972267] Call Trace:
[    0.972269]  <TASK>
[    0.972271]  intel_ddi_init+0x677/0xbc0 [i915 cde2090c2ce57600f18962e146fcc11fa0bc0692]
[    0.972346]  intel_modeset_init_nogem+0xc33/0x1570 [i915 cde2090c2ce57600f18962e146fcc11fa0bc0692]
[    0.972421]  ? gen12_fwtable_read32+0x96/0x200 [i915 cde2090c2ce57600f18962e146fcc11fa0bc0692]

dogknowsnx

Member

Registered: 2021-04-12

Posts: 648

Re: i915 many warnings/traces in dmesg and keyboard issue hp-dq200 laptop

Possibly related:
https://gitlab.freedesktop.org/drm/intel/-/issues/4530 ?
TL:DR: try linux-lts or wait  for patched Linux 5.16...

---

RI - Rest your Eyes and Self

"We are eternal, all this pain is an illusion" - Maynard James Keenan

loqs

Member

Registered: 2014-03-06

Posts: 17,321

Re: i915 many warnings/traces in dmesg and keyboard issue hp-dq200 laptop

https://patchwork.freedesktop.org/patch … 7105&rev=1 applies to 5.15.5 so you could test it locally and confirm if that is the cause of the i915 warnings and if it is the cause of the keyboard issue.

glenb77

Member

Registered: 2014-10-02

Posts: 68

Re: i915 many warnings/traces in dmesg and keyboard issue hp-dq200 laptop

Thanks for the replies. I found the keyboard issue was separate and resolved that with a dkms module to replace the i8042 modules. I did not find it easily as it was reported to fix the spectre laptops. for anyone else who stumbles upon this. the solution is installing this: https://github.com/berzoidberg/i8042-spectre-dkms

glenb77

Member

Registered: 2014-10-02

Posts: 68

Re: i915 many warnings/traces in dmesg and keyboard issue hp-dq200 laptop

i am running 5.15.5-1 and still seeing it. I'll wait for the next kernel and check. I use linux-ck-generic-v4. I did though test with vanilla linux and linux-zen with same result. I'll update when i get next kernel update with the result.

bd4

Member

Registered: 2021-12-09

Posts: 6

Re: i915 many warnings/traces in dmesg and keyboard issue hp-dq200 laptop

I had this issue with X1 Carbon Gen9, it is fixed for me in 5.15.7

glenb77

Member

Registered: 2014-10-02

Posts: 68

Re: i915 many warnings/traces in dmesg and keyboard issue hp-dq200 laptop

Not yet fixed on my machine. hp dq203tg laptop.

loqs

Member

Registered: 2014-03-06

Posts: 17,321

Re: i915 many warnings/traces in dmesg and keyboard issue hp-dq200 laptop

Not yet fixed on my machine. hp dq203tg laptop.

Which issue?  Please post an updated log from 5.15.7 or newer if it is the GPU issue.