Bug#684240: [wheezy] lenovo t61 laptop fails to shutdown

[Sven Joachim <svenjoac@gmx.de>]

On 2012-10-11 02:04 +0200, Jonathan Nieder wrote:

> Luis Mochan wrote:
>
>> [   297.964] (II) [drm] DRM interface version 1.4
>> [   297.964] (II) [drm] DRM open master succeeded.
>> [   297.964] (--) NOUVEAU(0): Chipset: "NVIDIA NV86"
>
> Sven has the same chipset, I think.  It was supposed to work well at
> least in the past.

I had some problems now and then, but currently it works fine.  However,
it's a desktop card, not a laptop.

> [...]
>> [   299.012] (II) NOUVEAU(0): Output LVDS-1 disconnected
>> [   299.012] (II) NOUVEAU(0): Output VGA-1 disconnected
>> [   299.012] (II) NOUVEAU(0): Output DVI-D-1 disconnected
>> [   299.012] (WW) NOUVEAU(0): Unable to find connected outputs - setting 1024x768 initial framebuffer

That looks really bad.

>> [    3.012903] uvesafb: NVIDIA Corporation, G86 Board - NV_NB8M , Chip Rev   , OEM: NVIDIA, VBE v3.0
>
> Not sure why uvesafb is claiming the display instead of nouveaufb.  It
> also could be interesting to try blacklisting uvesafb.

I think uvesafb is only loaded if you force it to (e.g. with the
video=uvesafb kernel parameter), and it's not even included in the
initramfs by default.

The Nouveau wiki¹ claims that handover from uvesafb to nouveaufb does not
work, but maybe this information is outdated.

Cheers,
       Sven


¹ http://nouveau.freedesktop.org/wiki/KernelModeSetting