RE: [Intel-gfx] i915 flickering with 5.12.X kernels

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See: https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs

 

From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Risto Paavola
Sent: torstai 6. toukokuuta 2021 8.20
To: jani.nikula@xxxxxxxxxxxxxxx; joonas.lahtinen@xxxxxxxxxxxxxxx; Vivi, Rodrigo <rodrigo.vivi@xxxxxxxxx>; airlied@xxxxxxxx; daniel@xxxxxxxx; intel-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: [Intel-gfx] i915 flickering with 5.12.X kernels

 

Hello again,

 

I am trying to repost this message with one smaller video since I got many error messages about oversized attachments.

 

BR,

-Risto

 

to 6. toukok. 2021 klo 7.57 Risto Paavola (risto.paavola@xxxxxxxxx) kirjoitti:

Hello!

 

I noticed that when I compiled 5.12 and 5.12.1 kernels my display started to flicker maybe in once a second.

 

With kernel 5.11.16 or below that there is no flickering. I'm using Gentoo testing and all other packages remained the same when I switched between 5.11.16 and 5.12.X.

 

I have attached a couple of videos to this email to demonstrate the problem with kernel version 5.12.1. Sorry about the file sizes.

 

These are the errors I am seeing in journal:

May 06 07:49:24 nyrkki kernel: ACPI Error: Needed type [Reference], found [Integer] 0000000090bcaee8 (20210105/exresop-66)
May 06 07:49:24 nyrkki kernel: ACPI Error: AE_AML_OPERAND_TYPE, While resolving operands for [OpcodeName unavailable] (20210105/dswexec-431)
May 06 07:49:24 nyrkki kernel: ACPI Error: Aborting method \_PR.CPU0._PDC due to previous error (AE_AML_OPERAND_TYPE) (20210105/psparse-529)
May 06 07:49:47 nyrkki kernel: DMAR: DRHD: handling fault status reg 2
May 06 07:49:47 nyrkki kernel: DMAR: [DMA Write] Request device [00:02.0] PASID ffffffff fault addr c7fe5000 [fault reason 05] PTE Write access is not set
May 06 07:49:47 nyrkki kernel: Bluetooth: hci0: unexpected event for opcode 0xfc2f
May 06 07:49:49 nyrkki sddm-helper[2258]: gkr-pam: unable to locate daemon control file
May 06 07:49:52 nyrkki kwin_x11[2322]: kwin_xkbcommon: XKB: couldn't find a Compose file for locale "en_FI.UTF-8"
May 06 07:49:58 nyrkki systemd-coredump[4290]: [🡕] Process 2376 (baloo_file) of user 1000 dumped core.

 

I have noticed that people were having these kinds of issues a couple of years ago with pstates and/or psr. Maybe this bug in the latest kernel is also related to them?

 

Hardware:

Lenovo Thinkpad X1 Carbon, gen 2

Latest BIOS 1.40

Intel(R) Core(TM) i7-4550U CPU with Intel HD Graphics 5000

14.0" WQHD (2560x1440), 300nit, IPS

 

Best Regards,

-Risto

 

 


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