[Intel-gfx] [PATCH 2/2] drm/i915/lvds: Use i915.lvds_fixed_mode= as a last resort

Mike Isely isely at isely.net
Fri Apr 22 00:46:02 CEST 2011


On Thu, 21 Apr 2011, Chris Wilson wrote:

> On Thu, 21 Apr 2011 17:30:21 -0500 (CDT), Mike Isely <isely at isely.net> wrote:
> > It looks like the driver did notice the specified mode and used it - 
> > because the display's refresh rate did get adjusted and the overall 
> > resolution is correct.  However the display timings are slightly "off", 
> > the image is stretched a few pixels off the right edge and a few lines 
> > off the bottom edge.  Yet the same modeline given to "video=" in 
> > combination with my controversial disable-fixed-mode patch however 
> > produces a perfectly aligned image.
> 
> Adding a few printk will help. And perhaps comparing the resultant register
> settings with intel_reg_dumper.

Oh absolutely.  But right now I'm not doing a very fair apples-to-apples 
comparison.  I need to address that first and make sure nothing else is 
influencing this.

  -Mike


-- 

Mike Isely
isely @ isely (dot) net
PGP: 03 54 43 4D 75 E5 CC 92 71 16 01 E2 B5 F5 C1 E8



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