2010-06-02 12:52:04

by David John

[permalink] [raw]
Subject: [2.6.35-rc1 Regression] i915: Commit cfecde causes VGA to stay off

Hi,

Commit cfecde 'drm/i915: Don't enable pipe/plane/VCO early (wait for
DPMS on)' causes the external VGA connector to stay off on boot. The
display powers up when X is started. I'm guessing an explicit DPMS ON
is not done on boot.

Reverting this commit fixes the issue.

Regards,
David.


2010-06-02 20:22:47

by Nick Bowler

[permalink] [raw]
Subject: Re: [2.6.35-rc1 Regression] i915: Commit cfecde causes VGA to stay off

On 18:22 Wed 02 Jun , David John wrote:
> Commit cfecde 'drm/i915: Don't enable pipe/plane/VCO early (wait for
> DPMS on)' causes the external VGA connector to stay off on boot. The
> display powers up when X is started. I'm guessing an explicit DPMS ON
> is not done on boot.

It gets worse: my primary (and only) display is VGA, and my monitor
reports that it has been configured to an invalid mode. The result is
no usable display.

> Reverting this commit fixes the issue.

Likewise.

--
Nick Bowler, Elliptic Technologies (http://www.elliptictech.com/)