intel g45 - outputs detected wrong with KMS

[Colin Guthrie]

'Twas brillig, and Christoph Schied at 12/06/09 18:30 did gyre and gimble:
> Hi!
> 
> xrandr reports not existing connected DVI outputs and is missing 
> resoltions for my LVDS when i enable KMS.
> 
> i'm using:
>  - xf86-video-intel cdbf84f20295c8a78624318aa6fdfff3f5c8ce27
>  - xorg-server 1.6.1.901
>  - linux 2.6.30
>  - libdrm 2.4.11
>  - mesa 7.4.2
> 
> As you can see in the attached xrandr output, I can only set 1280x800 
> for my LVDS, without KMS I can use lower resolution as well.
> 
> I also cant figure out how to disable vsync for opengl applications, I 
> disabled it with driconf but it's still enabled.
> 

This message from Keith on the intel-gfx list probably explains it:


'Twas brillig, and Keith Packard at 11/06/09 22:48 did gyre and gimble:
 > On Thu, 2009-06-11 at 12:42 +0200, Adam Lantos wrote:
 >
 >> When starting X with VGA _unplugged_, KMS enables the VGA connector
 >> and xrandr extendes my desktop.
 >
 > 2.6.30 is missing a patch that makes load-detect work.
 >
 > (It's in Eric's tree, commit 03d6069912babc07a3da20e715dd6a5dc8f0f867):
 >
 > commit 03d6069912babc07a3da20e715dd6a5dc8f0f867
 > Author: Keith Packard <keithp at keithp.com>
 > Date:   Fri Jun 5 18:19:56 2009 -0700
 >
 >     drm/i915: Hook connector to encoder during load detection (fixes 
tv/vga detect)
 >
 >     With the DRM-driven DPMS code, encoders are considered idle unless a
 >     connector is hooked to them, so mode setting is skipped. This 
makes load
 >     detection fail as none of the hardware is enabled.
 >
 >     Signed-off-by: Keith Packard <keithp at keithp.com>
 >     Signed-off-by: Eric Anholt <eric at anholt.net>
 >
 > diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
 > index a87eeff..b32a51f 100644
 > --- a/drivers/gpu/drm/i915/intel_display.c
 > +++ b/drivers/gpu/drm/i915/intel_display.c
 > @@ -2136,6 +2136,7 @@ struct drm_crtc 
*intel_get_load_detect_pipe(struct intel_output *intel_output,
 >         }
 >
 >         encoder->crtc = crtc;
 > +       intel_output->base.encoder = encoder;
 >         intel_output->load_detect_temp = true;
 >
 >         intel_crtc = to_intel_crtc(crtc);
 > @@ -2171,6 +2172,7 @@ void intel_release_load_detect_pipe(struct 
intel_output *intel_output, int dpms_
 >
 >         if (intel_output->load_detect_temp) {
 >                 encoder->crtc = NULL;
 > +               intel_output->base.encoder = NULL;
 >                 intel_output->load_detect_temp = false;
 >                 crtc->enabled = drm_helper_crtc_in_use(crtc);
 >                 drm_helper_disable_unused_functions(dev);
 >
 >
 >
 >
 > ------------------------------------------------------------------------
 >
 > _______________________________________________
 > Intel-gfx mailing list
 > Intel-gfx at lists.freedesktop.org
 > http://lists.freedesktop.org/mailman/listinfo/intel-gfx



-- 

Colin Guthrie
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http://colin.guthr.ie/

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