linux-kernel - Re: [PATCH] bochs-drm: disable video before changing video mode

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Date:	Tue, 31 Mar 2015 18:31:34 -0400 (EDT)
From:	David Airlie <airlied@...hat.com>
To:	Alexander Beregalov <a.beregalov@...il.com>
Cc:	Gerd Hoffmann <kraxel@...hat.com>,
	Chris Ruffin <chris.ruffin@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	cmruffin@...il.com,
	Alexander Beregalov <alexander.beregalov@...el.com>,
	alexey buyanov <alexey.buyanov@...el.com>
Subject: Re: [PATCH] bochs-drm: disable video before changing video mode



----- Original Message -----
> From: "Alexander Beregalov" <a.beregalov@...il.com>
> To: "Gerd Hoffmann" <kraxel@...hat.com>
> Cc: "Chris Ruffin" <chris.ruffin@...el.com>, "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>, "Dave
> Airlie" <airlied@...hat.com>, cmruffin@...il.com, "Alexander Beregalov" <alexander.beregalov@...el.com>, "alexey
> buyanov" <alexey.buyanov@...el.com>
> Sent: Wednesday, 1 April, 2015 2:13:33 AM
> Subject: Re: [PATCH] bochs-drm: disable video before changing video mode
> 
> On 19 March 2015 at 11:26, Gerd Hoffmann <kraxel@...hat.com> wrote:
> > On Mi, 2015-03-18 at 12:37 -0400, Chris Ruffin wrote:
> >> qemu and simics simulators both seem to expect that video should be
> >> disabled
> >> before changing the video mode.
> >
> > Not required for qemu.  qemu allows updating the modesetting registers
> > (xres + friends) while vbe is enabled.
> >
> > Turning it off, then back on after updating the registers doesn't hurt
> > though.  So if this change gets things going on simics it's fine with
> > me.
> >
> > Reviewed-by: Gerd Hoffmann <kraxel@...hat.com>
> 
> Hi Gerd, Dave,
> I can't find the patch in linux-next,
> will it be included in 4.1?

Just added it now.

Thanks,
Dave.
> 
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