linux-kernel - Kernel 5.7.0, nouveau 1.0.15-r1, sudo lshw -C display, *-display UNCLAIMED

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Date:   Thu, 11 Jun 2020 10:12:12 +0200
From:   Zeno Davatz <zdavatz@...il.com>
To:     nouveau <nouveau@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:     Ilia Mirkin <imirkin@...m.mit.edu>, Ben Skeggs <bskeggs@...hat.com>
Subject: Kernel 5.7.0, nouveau 1.0.15-r1, sudo lshw -C display, *-display UNCLAIMED

Hi

With Kernel 5.7.0, nouveau drivers 1.0.15-r1

sudo `lshw -C display`

will show me:

 *-display UNCLAIMED

Also `xrandr -q` will not work:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1680 x 1050, current 1680 x 1050, maximum 1680 x 1050
default connected primary 1680x1050+0+0 0mm x 0mm
   1680x1050      0.00*

So I can not start up my second monitor with this command:

xrandr --output DVI-D-1 --auto --output DP-1 --auto --left-of DVI-D-1

This used to work with Kernel 5.5.

It was "completely broken" in 5.6 and with 5.7 my first display is
back, but not my second.

I am on Gentoo Linux. Please CC for replies.

Best
Zeno