Control: tags -1 + moreinfo Hi,
On Sat, Aug 08, 2026 at 03:11:43PM +0900, Takashi Yano wrote: > On Tue, 4 Aug 2026 07:21:36 +0200 > Salvatore Bonaccorso <[email protected]> wrote: > > > Control: tags -1 + moreinfo > > > > On Fri, Jul 31, 2026 at 02:28:51PM +0900, Takashi Yano wrote: > > > Package: src:linux > > > Version: 6.12.96-1 > > > Severity: normal > > > Tags: patch > > > X-Debbugs-Cc: [email protected] > > > User: [email protected] > > > Usertags: amd64 > > > > > > Dear Maintainer, > > > > > > * What led up to the situation? > > > When starting X on NVIDIA Quadro 600 DisplayPort, X does not start > > > correctly > > > and does not show screen. I am using nouveau. This also happen with > > > Quadro 600 / 2000 / 4000 > > > Quadro FX 1800 > > > The issue does not happen if DVI output is used. > > > > > > * What exactly did you do (or not do) that was effective (or > > > ineffective)? > > > Using another mother board does not help. > > > After some effort, I found that the attached patch resolves the > > > issue. > > > This essentially reverts a5a7379f6d9d ("drm/nouveau/kms/nv50-: split > > > DP > > > disable+enable into two modesets") and adds a workaround for Quadro > > > FX > > > 1800. > > > > > > * What was the outcome of this action? > > > Without the patch, X does not start correctly, while it starts > > > correctly > > > with the patch. > > > > > > * What outcome did you expect instead? > > > X starts correctly and the screen is shown up. > > > > Can you please report the problem directly upstream and report here so > > we can update the metadata? > > Thanks. Reported: https://bugzilla.kernel.org/show_bug.cgi?id=221852 Thanks for that, though reaching out via bugzilla will probably not reach the intended audience. Can you actually forward your report to the following set of addresses: Ben Skeggs <[email protected]> Lyude Paul <[email protected]> Danilo Krummrich <[email protected]> (from the corresponding commit, plus the following from get_maintainers.pl output): Lyude Paul <[email protected]> (maintainer:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS) Danilo Krummrich <[email protected]> (maintainer:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS) Maarten Lankhorst <[email protected]> (maintainer:DRM DRIVERS AND MISC GPU PATCHES) Maxime Ripard <[email protected]> (maintainer:DRM DRIVERS AND MISC GPU PATCHES,authored:1/5=20%,added_lines:34/54=63%,removed_lines:34/52=65%) Thomas Zimmermann <[email protected]> (maintainer:DRM DRIVERS AND MISC GPU PATCHES,commit_signer:2/5=40%) David Airlie <[email protected]> (maintainer:DRM DRIVERS) Simona Vetter <[email protected]> (maintainer:DRM DRIVERS,commit_signer:1/5=20%) and include the following lists as well [email protected] (open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS) [email protected] (open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS) [email protected] (open list) Thanks already! Regards, Salvatore
