Nouveau - Aug 2015 - [PATCH] Revert "drm/nouveau/fifo/gk104: kick channels when deactivating them"

2015-08-12 16:37 GMT+09:00 Afzal Mohammed <afzal.mohd.ma at
gmail.com>:
> Hi,
>
> On Wed, Aug 12, 2015 at 04:12:15PM +0900, Alexandre Courbot wrote:
>
>> Could you let me know what your card is? It may be useful to know the
>> range of affected cards when trying to fix this.
>
> grep of nouveau on dmesg as follows, if the following information is
> not sufficient, let me know where the details you are asking for can
> be found,
Great, thanks. Are you also on an optimus configuration with the
NVIDIA card being the secondary GPU?

Hi,

On Wed, Aug 12, 2015 at 04:40:57PM +0900, Alexandre Courbot wrote:
> Great, thanks. Are you also on an optimus configuration with the
> NVIDIA card being the secondary GPU?
Spec says graphic processor is NVIDIA GeForce NV14P-GV2 GT40M, system
is Lenovo E431 laptop.

I am a stranger here, started Kernel journey towards north and reached
south since the system wasn't booting :), don't know how to find it is
an optimus configuration, if above details aren't enough, let me know
how to find out.

Regards
Afzal

On Wed, Aug 12, 2015 at 6:59 PM, Afzal Mohammed <afzal.mohd.ma at
gmail.com> wrote:
> Hi,
>
> On Wed, Aug 12, 2015 at 04:40:57PM +0900, Alexandre Courbot wrote:
>
>> Great, thanks. Are you also on an optimus configuration with the
>> NVIDIA card being the secondary GPU?
>
> Spec says graphic processor is NVIDIA GeForce NV14P-GV2 GT40M, system
> is Lenovo E431 laptop.
>
> I am a stranger here, started Kernel journey towards north and reached
> south since the system wasn't booting :), don't know how to find it
is
> an optimus configuration, if above details aren't enough, let me know
> how to find out.
Thanks for the details!

An optimus configuration means that display and basic acceleration is
provided by an integrated Intel graphics, and the NVIDIA GPU can be
switched on/off dynamically to provide more power when needed.

According to your laptop reference, this seems to be the kind of
configuration you have. It is relevant because this issue seems to
happen when the NVIDIA GPU is switched off during boot.