On Tue, Aug 28, 2012 at 11:18:24PM -0500, Ian Pilcher wrote:
> On 08/28/2012 07:13 PM, Adam Jackson wrote:
> > On 8/28/12 7:33 PM, Ian Pilcher wrote:
> >> Actually, I believe that the error is probably in the Intel driver. As
> >> I understand it, it shouldn't be sending audio InfoFrames to a non-HDMI
> >> display.
> >
> > If that's the case then I'd still say "we're doing something else wrong
> > here". Quirks - at least at the core drm level - are not for working
> > around broken drivers, they're for working around broken displays.
>
> And I'd agree.
>
> (Although I suppose one *could* argue that the display is broken in 2
> ways -- it reports audio capabilities that aren't really there, and it
> gets confused by any InfoFrames -- AVI or audio.)
>
> I don't have the knowledge or time to fix the Intel driver, but I've
> always planned to at least bugzilla the issue. I can't reasonably do
> so, however, until the user-defined quirks infrastructure is in place,
> so that the behavior can be demonstrated.
>
> If you prefer to leave the display broken with Intel GPUs, you can
> always just remove the EDID_QUIRK_NO_AUDIO flag:
Wrt intel infoframes issues: Have you retested on latest 3.6-rc kernels?
We've fixed quite a few bugs for our infoframe support recently ...
-Daniel
>
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -160,6 +160,10 @@ union edid_quirk
> edid_quirk_list[EDID_QUIRK_LIST_SIZE] = {
> { { { { EDID_MFG_ID('V', 'S', 'C'), cpu_to_le16(5020) } },
> EDID_QUIRK_FORCE_REDUCED_BLANKING } },
>
> + /* LG L246WP */
> + { { { { EDID_MFG_ID('G', 'S', 'M'), cpu_to_le16(0x563f) } },
> + EDID_QUIRK_DISABLE_INFOFRAMES } },
> +
> /*
> * When adding built-in quirks, please adjust EDID_QUIRK_LIST_SIZE to
> * provide some room for user-supplied quirks.
>
> --
> ========================================================================
> Ian Pilcher arequipeno@xxxxxxxxx
> "If you're going to shift my paradigm ... at least buy me dinner first."
> ========================================================================
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--
Daniel Vetter
Mail: daniel@xxxxxxxx
Mobile: +41 (0)79 365 57 48
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