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Bug#1053281: linux-image-6.5.0-1-amd64: Debian does not boot at cold start on kernel 6.5.0-1-amd64 on Intel NUC 12

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Control: retitle -1 No display output on Intel NUC 12 on DP/HDMI on cold boot; works with CPU-integrated Intel Iris Xe (TB4)

On Saturday, 4 November 2023 10:19:49 CET kuromski@stodwa.org wrote:
> On 2023-11-03 14:20, Diederik de Haas wrote:
> > On Friday, 3 November 2023 13:49:01 CET Diederik de Haas wrote:
> >> My findings are:
> >> > 1. If I use Thunderbolt 4 output (usb-c at the back) everything works
> >> > fine.
> >> > 2. If I use one of DP or HDMI ports the issue occurs.
> >> > 
> >> > Manual for this Intel NUC12 states that both DP and HDMI outputs are
> >> > handled by Intel ARC A770M GPU, while Thunderbolt4 output is handled by
> >> > CPU-integrated Intel Iris Xe.
> > 
> > And does it really not boot or are you 'only' getting no display
> > output? If the latter, can you ssh into your NUC and share `dmesg` output?
> > Hopefully that'll give a clue as to why the DP/HDMI outputs aren't working
> > properly.
> 
> 2. That's a valid question :) It does boot after all, only display is stuck.

Adjusted bug title accordingly.

> I was able to get dmesg -> attached.
> I don't remember if I mentioned that, but 'nomodeset' kernel param does
> not help..

There are a few things that stood out to me from `dmesg`:

[    0.000000] x86/split lock detection: #AC: crashing the kernel on kernel split_locks and warning on user-space split_locks
...
[    2.977094] EDAC MC0: Giving out device to module igen6_edac controller Intel_client_SoC MC#0: DEV 0000:00:00.0 (INTERRUPT)
[    2.979900] EDAC MC1: Giving out device to module igen6_edac controller Intel_client_SoC MC#1: DEV 0000:00:00.0 (INTERRUPT)
[    2.979922] EDAC igen6 MC1: HANDLING IBECC MEMORY ERROR
[    2.979923] EDAC igen6 MC1: ADDR 0x7fffffffe0 
[    2.979925] EDAC igen6 MC0: HANDLING IBECC MEMORY ERROR
[    2.979926] EDAC igen6 MC0: ADDR 0x7fffffffe0 
[    2.980809] EDAC igen6: v2.5.1

Likely not relevant for this bug, but you may want to look into it anyway.

[    5.183228] NET: Registered PF_ALG protocol family
[    5.322597] i915 0000:03:00.0: [drm] *ERROR* Device is non-operational; MMIO access returns 0xFFFFFFFF!
[    5.325270] i915 0000:03:00.0: Device initialization failed (-5)
[    5.326526] i915: probe of 0000:03:00.0 failed with error -5

Pretty sure that *is* the relevant part.
I _think_ it's best to get the upstream maintainers involved, but I don't
know who they are.
Hopefully one of the (actual) kernel-team members does know that.

[   66.579068] snd_hda_intel 0000:04:00.0: couldn't bind with audio component
[   66.579127] snd_hda_intel 0000:04:00.0: HSW/BDW HD-audio HDMI/DP requires binding with gfx driver

My guess is that's a consequence of the earlier error. You can verify that
by checking a 'normal' boot and it then likely won't have those lines.

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Bug#1053281: closed by Diederik de Haas <didi.debian@cknow.org> (Re: Bug#1053281: issue fixed) kuromski@stodwa.org - 2023-11-03 10:10 +0100
  Bug#1053281: linux-image-6.5.0-1-amd64: Debian does not boot at cold start on kernel 6.5.0-1-amd64 on Intel NUC 12 Diederik de Haas <didi.debian@cknow.org> - 2023-11-03 14:10 +0100
    Processed: Re: Bug#1053281: linux-image-6.5.0-1-amd64: Debian  does not boot at cold start on kernel 6.5.0-1-amd64 on Intel NUC 12 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2023-11-03 14:10 +0100
    Bug#1053281: linux-image-6.5.0-1-amd64: Debian does not boot at cold start on kernel 6.5.0-1-amd64 on Intel NUC 12 Diederik de Haas <didi.debian@cknow.org> - 2023-11-03 14:30 +0100
      Bug#1053281: linux-image-6.5.0-1-amd64: Debian does not boot at cold start on kernel 6.5.0-1-amd64 on Intel NUC 12 Diederik de Haas <didi.debian@cknow.org> - 2023-11-04 18:30 +0100
        Processed: Re: Bug#1053281: linux-image-6.5.0-1-amd64: Debian  does not boot at cold start on kernel 6.5.0-1-amd64 on Intel NUC 12 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2023-11-04 18:30 +0100

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