[Intel-gfx] Dell U2412M monitor complains about input timing

[Jesse Barnes]

On Tue, 09 Jul 2013 14:46:28 -0700
Christian Kreibich <christian at whoop.org> wrote:

> On 07/09/2013 02:27 PM, Jesse Barnes wrote:
> > Sounds like our pixel clock is probably out of the range your monitor
> > wants.  If you can get that mode running with the VESA driver you could
> > collect a register dump in the good and bad cases so we could compare...
> 
> I'm very happy to try (though it'll have to wait ~2 weeks as I'm on
> travel). Can you point me at the right command for collecting the
> register dump?

You can use intel_reg_dumper or quick_dump from intel-gpu-tools.
Hopefully your distro has it packaged, otherwise you can build the
version at git.freedesktop.org/git/xorg/app/intel-gpu-tools.

-- 
Jesse Barnes, Intel Open Source Technology Center