[Intel-gfx] Television turns greenish after stand-by

Daniel Vetter daniel at ffwll.ch
Mon Feb 13 09:32:08 CET 2012

On Mon, Feb 13, 2012 at 08:33:22AM +0100, Angela Schmid wrote:
> There is no difference with intel_reg_dumper. I took a probe during correct display (1080i), after 2 days, when I moved the
> television out of stand-by (display is green) and after a shutdown/start during a correct display. See below.
> Also dmesg at start and when coming out of stand-by is the same.
> I have seen messages from Paulo Zanoni:
> [Intel-gfx] [PATCH 1/2] drm/i915: set interlaced bits for TRANSCONF
> Are they eventually needed in my case ? Could you incorporate these in your git interlace tree or otherwise tell me where to find
> them.

All interlaced patches including the TRANSCONF patch from Paulo have been
merged to drm-intel-next-queued in my official drm-intel repo at:


> As I reread the messages, there seem to be occasions that when HDMI is only connected the display can't come up correct. I have also
> only HDMI connected, but never have seen any misbehavior, it comes up in 1080i.

Iirc that issue was only when the BIOS has set up the output in interlaced
mode and the kernel tried to use progressive, but failed to correctly
clear all interlaced bits. The patch to fix this is also merged (and on
track to get merged to 3.3 as a bugfix).

> What can I do to isolate the problem.

I don't have an idea right away. Can you please file a bug report on
bugs.freedeskopt.org so that we don't lose sight of this issue here?

Thanks, Daniel
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48

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