linux-kernel - Re: PROBLEM: Intel VGA output busticated on 4.3-rc2 (regression)

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Message-ID: <CADyTPEy3_OnRLZ=wRSOCuKPtYCDp6o24Vw5h1AqiMMF_jkMAWA@mail.gmail.com>
Date:	Wed, 7 Oct 2015 11:47:30 -0400
From:	Nick Bowler <nbowler@...conx.ca>
To:	Ville Syrjälä <ville.syrjala@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	intel-gfx@...ts.freedesktop.org
Subject: Re: PROBLEM: Intel VGA output busticated on 4.3-rc2 (regression)

On 10/7/15, Nick Bowler <nbowler@...conx.ca> wrote:
> On 10/7/15, Ville Syrjälä <ville.syrjala@...ux.intel.com> wrote:
>> On Wed, Oct 07, 2015 at 10:29:22AM -0400, Nick Bowler wrote:
>>> On 10/7/15, Ville Syrjälä <ville.syrjala@...ux.intel.com> wrote:
>>> > On Tue, Oct 06, 2015 at 11:42:33AM -0400, Nick Bowler wrote:
>>> >> On 9/24/15, Nick Bowler <nbowler@...conx.ca> wrote:
>>> >> > Testing out 4.3-rc2, first thing I notice is that the VGA output is
>>> >> > not working.  Specifically, the display is continuously powering on
>>> >> > and off -- at no point is any image visible on the screen (I am
>>> >> > expecting to see the console output).  The display connected to the
>>> >> > HDMI output is working fine.
>>> [...]
>> Hmm. You said VGA has the problem, but HDMI does not. Was the problem
>> happening even when you have both displays enabled at the same time, or
>> just when VGA was enabled alone?
>
> When I boot with HDMI cable disconnected, there is no change in behaviour
> for the VGA output.

Clarification: normally both displays are connected.  So the original issue is
that only one of two displays are working.
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