Bug 33733 - After kernel update, boot freezes after message "i915 0000:00:02.0: [drm] VT-d active for gfx access"
Summary: After kernel update, boot freezes after message "i915 0000:00:02.0: [drm] VT-...
Status: RESOLVED FIXED
Alias: None
Product: Mageia
Classification: Unclassified
Component: RPM Packages (show other bugs)
Version: 9
Hardware: x86_64 Linux
Priority: Normal critical
Target Milestone: ---
Assignee: Kernel and Drivers maintainers
QA Contact:
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Keywords:
Depends on: 33775
Blocks:
  Show dependency tree / graph
 
Reported: 2024-11-06 17:15 CET by pat dealt
Modified: 2024-11-28 10:16 CET (History)
1 user (show)

See Also:
Source RPM: kernel-desktop-6.6.58-2.mga9
CVE:
Status comment:

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Description pat dealt 2024-11-06 17:15:31 CET 
Description of problem:

After kernel update version 6.6.58-2, it is impossible to boot.
The last message displayed during boot is :

 "i915 0000:00:02.0: [drm] VT-d active for gfx access"

Then screen is frozen and only a HW poweroff is able to restart the computer.
This issue occurs even with failsafe option or any other kernel option.

How reproducible:

This issue occurs ONLY with intel module i915 and Alder Lake-P Integrated Graphics Controller
This issue  doesn't occur with intel module i915 and Tiger Lake-LP GT2 [UHD Graphics G4].
BTW "gfx access" is not use with Tiger Lake.

Last it didn't occur with previous kernel versions (6.6.52, 6.6.50 ...) 
and the same HW (Alder Lake).

Steps to Reproduce:

Just try to boot with kernel-6.6.58-2 + intel video module i915 and Alder Lake-P.
Comment 1 Lewis Smith 2024-11-06 19:41:11 CET 
Thank you for the report.
To continue working, you can choose the previous kernel at boot time.

Assgning to kernel.

Assignee: bugsquad => kernel

Comment 2 katnatek 2024-11-12 20:26:18 CET 
Add to Giuseppe due issues with kernel list https://bugs.mageia.org/show_bug.cgi?id=33748

CC: (none) => ghibomgx

katnatek 2024-11-17 18:16:10 CET

Depends on: (none) => 33775

Comment 3 katnatek 2024-11-21 02:25:51 CET 
You still have this issue with kernel 6.6.61 in bug#33775 ?
Comment 4 pat dealt 2024-11-21 11:04:08 CET 
Yes I have exactly the same stop point with the same last message.

As I said previously currently I still boot without any problem with 
kernel 6.6.52 but I tried to boot also with 6.6.50 that worked in the past
and now it doesn't boot anymore with the same issue. 
May be it's due to a dependance updated recently?
Comment 5 Giuseppe Ghibò 2024-11-21 14:19:58 CET 
Try booting with i915.enable_dc=0
Comment 6 Giuseppe Ghibò 2024-11-21 14:23:54 CET 
Also what is output of: 'lspcidrake -v | grep -i display' ?
Comment 7 pat dealt 2024-11-21 16:14:26 CET 
I tried adding option i915.enable_dc=0 to kernel without any success.
To summarize :
Doesn't work with 6.6.58 and 6.6.61.
Doesn't work with 6.6.50 but worked in the past.
The only current kernel working is 6.6.52 on which 

'lspcidrake -v | grep -i display' returns :

Card:Intel Kernel Mode setting (Xorg modesetting): Intel Corporation|Alder Lake-P Integrated Graphics Controller [DISPLAY_VGA] (vendor:8086 device:46a6 subv:8086 subd:3024) (rev: 0c)
Comment 8 pat dealt 2024-11-28 10:16:13 CET 
This Bug is linked to 33770.
Resolved after microcode-0.20241112-1.mga9.nonfree.noarch.rpm release.
Now kernel 58 and 61 are working.

Status: NEW => RESOLVED
Resolution: (none) => FIXED
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