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

[David Woodhouse]

On Tue, 2025-04-08 at 15:59 +0000, Timur Tabi wrote:
> On Mon, 2025-04-07 at 21:09 +0100, David Woodhouse wrote:
> > It *was* working, as long as I could tolerate it being scaled to 200% like
> > the internal display. It *did* light up the external display just fine.
> 
> Ok, the only thing I can think of is to do a bisect between 6.13.4 and
> 6.13.6 to determine the commit that broke it.

I meant, the proprietary driver was working. It messed up when I asked
it to scale the displays, but that's a separate issue. It *did* light
up the external DP display on the USB-C port.

If I set the BIOS to use the external display at boot time, that works
and Linux starts booting using the USB-C monitor — until nouveau inits,
at which point it stops working. Is it useful to provide the logfiles
from debugfs and drm.debug=0x100 logs from such a boot?
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