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

From	Giorgos Kourafas <gkoura@gmail.com>
Newsgroups	linux.debian.bugs.rc
Subject	Bug#1121227: linux-image-6.12.48+deb13-amd64: Black screen with Nouveau TRAP_PROP [RT-FAULT] on NVIDIA GT 230M (GT216M)
Date	2025-11-23 11:10 +0100
Message-ID	<LUfcB-f7M7-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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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.

--- end of report ---

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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) Giorgos Kourafas <gkoura@gmail.com> - 2025-11-23 11:10 +0100

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