linux-kernel - Re: [PATCH] Revert "drm/nouveau/fifo/gk104: kick channels when deactivating them"

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Date:	Mon, 17 Aug 2015 12:05:50 +0900
From:	Alexandre Courbot <gnurou@...il.com>
To:	Afzal Mohammed <afzal.mohd.ma@...il.com>
Cc:	Alexandre Courbot <acourbot@...dia.com>,
	David Airlie <airlied@...ux.ie>,
	Ben Skeggs <bskeggs@...hat.com>,
	Eric Biggers <ebiggers3@...il.com>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	"nouveau@...ts.freedesktop.org" <nouveau@...ts.freedesktop.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Revert "drm/nouveau/fifo/gk104: kick channels when
 deactivating them"

Patch has landed in -rc7, thanks David!

On Fri, Aug 14, 2015 at 12:49 PM, Alexandre Courbot <gnurou@...il.com> wrote:
> On Wed, Aug 12, 2015 at 6:59 PM, Afzal Mohammed <afzal.mohd.ma@...il.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.
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