Bug#1121227: linux-image-6.12.48+deb13-amd64: Black screen with Nouveau TRAP_PROP [RT-FAULT] on NVIDIA GT 230M (GT216M)

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From	Salvatore Bonaccorso <carnil@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1121227: linux-image-6.12.48+deb13-amd64: Black screen with Nouveau TRAP_PROP [RT-FAULT] on NVIDIA GT 230M (GT216M)
Date	Sun, 23 Nov 2025 16:30:02 +0100
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Hi Giorgos,

Thanks for your report.

On Sun, Nov 23, 2025 at 11:59:10AM +0200, Giorgos Kourafas wrote:
> Package: linux
> Version: 6.12.48+deb13-1
> Severity: serious
> Tags: upstream regression ftbfs Control: affects -1 + src:linux
> 
> Dear Maintainer,
> 
> The newer kernel image, **6.12.48+deb13-amd64**, causes a black screen
> during boot on a Sony Vaio VPCCW1S1E laptop. The issue is a **regression**,
> as the previous stable kernel, **6.1.40-amd64, works perfectly** with the
> open-source Nouveau driver. ### Hardware Affected * **Laptop Model:** Sony
> Vaio VPCCW1S1E * **Graphics Card:** **NVIDIA GT216M (GeForce GT 230M)** ###
> Diagnostic Information When booting the 6.12.48+deb13 kernel, the system
> fails to initialize any display output, including virtual consoles (TTYs),
> preventing a user from reaching the login prompt. By checking the system
> logs from a failed boot, the following critical error message was found,
> indicating a driver crash related to the GPU's core or power management:
> nouveau 0000:01.00.0: gr: TRAP_PROP TP1 - 00000040 [RT-FAULT] ###
> Troubleshooting Attempts
> All attempts to fix the issue via kernel parameters on the 6.12.48 kernel
> have failed: 1. Adding **'nouveau.modeset=0'** 2. Adding
> **'nouveau.runpm=0'** (disabling runtime power management) 3. Blacklisting
> the Nouveau driver completely.
> The only way to boot the 6.12 kernel is by using the
> **'modprobe.blacklist=nouveau'** or **nomodeset=1** parameter, which forces
> a generic VESA driver with poor resolution and no acceleration.

6.12.48-1 is not the newest kernel in Debian trixie, please thus test
as well with 6.12.57-1 and report back if the issue persists.

We need full kernel logs and information about the hardware, ideally
you collect the information with reportbug following up on this bug.

If the issue persist in 6.12.57-1, can you then please bisect the
changes between 6.12.43 and 6.12.48 (assuming you upgraded from
6.12.43 to 6.12.48). Let us know if you need more psecific indication
on how to do the bisection.

Regards,
Salvatore

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Bug#1121227: linux-image-6.12.48+deb13-amd64: Black screen with Nouveau TRAP_PROP [RT-FAULT] on NVIDIA GT 230M (GT216M) Salvatore Bonaccorso <carnil@debian.org> - 2025-11-23 16:30 +0100
  Bug#1121227: linux-image-6.12.48+deb13-amd64: Black screen with Nouveau TRAP_PROP [RT-FAULT] on NVIDIA GT 230M (GT216M) Giorgos Kourafas <gkoura@gmail.com> - 2025-11-25 00:10 +0100
    Bug#1121227: linux-image-6.12.48+deb13-amd64: Black screen with Nouveau TRAP_PROP [RT-FAULT] on NVIDIA GT 230M (GT216M) Giorgos Kourafas <gkoura@gmail.com> - 2025-11-25 00:10 +0100
      Bug#1121227: linux-image-6.12.48+deb13-amd64: Black screen with Nouveau TRAP_PROP [RT-FAULT] on NVIDIA GT 230M (GT216M) Giorgos Kourafas <gkoura@gmail.com> - 2025-12-10 00:50 +0100

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