[6.13.6 stable regression?] Nouveau reboot failure in r535_gsp_msg_recv()

[David Woodhouse]

On Mon, 2025-04-07 at 18:47 +0000, Timur Tabi wrote:
> 
> Have you tried the proprietary driver?  With Ada GPUs like yours, Nouveau
> just uses GSP-RM to do most of the GPU work.  GSP-RM is just the Nvidia
> proprietary driver ported to RISC-V, and Nouveau basically does the same
> thing that our open source driver driver does.

Yes. The proprietary driver (570.133.07) did manage to light up the
external monitor over USB-C/DP.

It was utterly unusable, as I couldn't make it do 100% scaling on the
external screen and 200% on the high-DPI laptop screen, and my attempts
to do so (just using the GNOME control panel) ended up with weird
effects and wrong scaling and the mouse pointer not really taking
effect in the place I thought it was pointing... but setting that
aside, yes. The display *did* light up.

> If the proprietary driver works just fine, then we know that it's a
> bug/limitation in how Nouveau talks to GSP-RM.  One of the Nouveau devs can
> help with that.

Is the first step there to try beta testing the r570 update?

> If the proprietary driver does not work, then that's a bug that can be
> reported to Nvidia that Nvidia has to fix.  Once that fixes makes it to GSP-
> RM, then in theory Nouveau can be updated to use it.  
> 
> Please note that an update for Nouveau that moves it to the r570 driver is
> in development, and that might fix your issue.  If you want to beta test
> that, let me know, but you'll have to build a new kernel.  However, please
> try the proprietary driver first.

Thanks!
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