From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: Sandy Bridge Desktop - 1920x1080i interlace not
 working
Date: Wed, 25 Jan 2012 09:41:20 +0100
Message-ID: <20120125084119.GD3896@phenom.ffwll.local>
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To: Alfonso Fiore <alfonso.fiore@gmail.com>
Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org>
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On Wed, Jan 25, 2012 at 09:25:11AM +0100, Alfonso Fiore wrote:
> On Wed, Jan 25, 2012 at 9:12 AM, Alfonso Fiore <alfonso.fiore@gmail.com> wrote:
> > On Wed, Jan 25, 2012 at 8:55 AM, Daniel Vetter <daniel@ffwll.ch> wrote:
> >>
> >> Have you booted with nomodeset and are using the vesa X driver? Iirc
> >> you've said that the bios can setup up things correctly, the idea is to
> >> grab a register dump to learn how the bios sets things up.
> 
> Here you go.
> 
> I run a test at 1024x768 over HDMI with nomodeset.
> 
> Please note xrandr complains:
> xrandr: Failed to get size of gamma for output default
> 
> and there is no more file for edid:
> cp: cannot stat
> `/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-VGA-1/edid': No
> such file or directory
> cp: cannot stat
> `/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/edid':
> No such file or directory

That's correct, these files are provided by the kernel modesetting code
from the drm driver.

> logs attached.

Thanks, I'll have a look.
-Daniel
-- 
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48