[Intel-gfx] i915 driver doesn't find all Modelines that nouveau driver finds

[Brian J. Murrell]

On Mon, 2015-03-02 at 19:07 +0100, Daniel Vetter wrote:
> On Mon, Mar 02, 2015 at 11:33:39AM -0500, Brian J. Murrell wrote:
> > On Mon, 2015-03-02 at 09:07 +0000, Chris Wilson wrote:
> > 
> > > Can you please attach dmesg with drm.debug=6 on the command line?
> > 
> > Please find it attached.  I did notice in it though:
> > 
> > [   50.508381] [drm:drm_mode_debug_printmodeline] Modeline 27:"1600x1200" 0 202500 1600 1664 1856 2160 1200 1201 1204 1250 0x40 0x5
> > [   50.508383] [drm:drm_mode_prune_invalid] Not using 1600x1200 mode 15
> > [   50.508385] [drm:drm_mode_debug_printmodeline] Modeline 28:"1600x1200" 0 189000 1600 1664 1856 2160 1200 1201 1204 1250 0x40 0x5
> > [   50.508385] [drm:drm_mode_prune_invalid] Not using 1600x1200 mode 15
> > [   50.508387] [drm:drm_mode_debug_printmodeline] Modeline 66:"1400x1050" 0 179500 1400 1504 1656 1912 1050 1053 1057 1105 0x40 0x6
> > [   50.508388] [drm:drm_mode_prune_invalid] Not using 1400x1050 mode 15
> > [   50.508390] [drm:drm_mode_debug_printmodeline] Modeline 71:"1600x1200" 0 175500 1600 1664 1856 2160 1200 1201 1204 1250 0x40 0x5
> > [   50.508390] [drm:drm_mode_prune_invalid] Not using 1600x1200 mode 15
> > 
> > Why would it think those modes are invalid?
> 
> 15 = dotclock too high for your chip.

Ahhh.  So in layman's terms, my nVidia card was better, at least in
terms of being able to handle higher dotclocks?

That will be a pity if the case.  I was sure looking forward to getting
rid of this nVidia card.  :-(

b.


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