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<body><span class="vcard"><a class="email" href="mailto:daniel@ffwll.ch" title="Daniel Vetter <daniel@ffwll.ch>"> <span class="fn">Daniel Vetter</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [sdvo lvds regression] "Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC""
href="https://bugs.freedesktop.org/show_bug.cgi?id=65524">bug 65524</a>
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<td>eich@pdx.freedesktop.org
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [sdvo lvds regression] "Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC""
href="https://bugs.freedesktop.org/show_bug.cgi?id=65524#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [sdvo lvds regression] "Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC""
href="https://bugs.freedesktop.org/show_bug.cgi?id=65524">bug 65524</a>
from <span class="vcard"><a class="email" href="mailto:daniel@ffwll.ch" title="Daniel Vetter <daniel@ffwll.ch>"> <span class="fn">Daniel Vetter</span></a>
</span></b>
<pre>Personally your experimental results reinforces my opinion that someone ordered
the shittiest sdvo encoder and the tiniest panel they could find and then
noticed that stuff doesn't work with a pixel mutliplier of 4.
To fix this they've frobbed the panel's mode so that it's just barely above
50MHz and this way tricked the Windows driver into picking a pixel mutliplier
of 2 without overtly offending the panel.
I share your fear for the reliability of VBT modes, but in this specific case
of SDVO-LVDS it looks like the vbt is actually more reliable. Especially if you
combine this with the fact that we've ignored the edid modes for a few years
completely. Maybe we need to double-check with egbert, but iirc the panel which
fails for him didn't have any vbt mode at all.
Egbert, can you please check whether my patch doesn't break your system?</pre>
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