Nouveau - Dec 2014 - [Bug 82714] [G84] nouveau fails to properly initialize GPU

https://bugs.freedesktop.org/show_bug.cgi?id=82714

Bruno <bonbons67 at internet.lu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #3 from Bruno <bonbons67 at internet.lu> ---
This bug still applies with 3.18.

(In reply to Pierre Moreau from comment #2)
> I just tested on a GeForce 8600 GTS and had no problem loading Nouveau,
> launching X or kmscon or glxgears. Closing as fixed.
Are you testing on a system where the GeForce 8600 GTS is a secondary GPU and
not initialized by VBIOS?

If I'm booting on GF as primary GPU nouveau gets along with it. It's in
the
case I'm booting on the radeon (and GF is thus left alone by BIOS) that
things
are broken. Modprobe nouveau works, writing to its /dev/fb1 seems to work as
well (though monitor connected to GF via VGA cable sees no signal).

Launching kmscon freezes the whole system:
kmscon --drm --gpus=all -v --debug
[0000.000000] NOTICE: kmscon Revision kmscon-8 Oct 26 2014 19:43:16
[0000.000101] INFO: conf: reading config file /etc/kmscon/kmscon.conf
[0000.045957] NOTICE: vt: using tty /dev/tty7
[0000.046126] DEBUG: tsm_screen: new screen (tsm_screen_new() in
src/tsm_screen.c:573)
[0000.046152] DEBUG: tsm_vte: new vte object (tsm_vte_new() in
src/tsm_vte.c:399)
[0000.399785] INFO: drm_shared: new drm device via /dev/dri/card0
[0000.493045] INFO: video: new device 0x1f67ae0
[0000.493491] INFO: ignoring video device /dev/fb0 on seat seat0 as it is a
DRM-fbdev device
[0000.493772] INFO: drm_shared: new drm device via /dev/dri/card1

nothing follows and system does not respond anymore.

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