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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - MegaChips MCDP2800 LSPCON and ASRock Fatal1ty Z170 Gaming-ITX/ac issues (Broadcast RGB, HDMI output, triple monitor not working)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94248#c80">Comment # 80</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - MegaChips MCDP2800 LSPCON and ASRock Fatal1ty Z170 Gaming-ITX/ac issues (Broadcast RGB, HDMI output, triple monitor not working)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94248">bug 94248</a>
from <span class="vcard"><a class="email" href="mailto:nw9165-3201@yahoo.com" title="nw9165-3201@yahoo.com">nw9165-3201@yahoo.com</a>
</span></b>
<pre>(In reply to Jani Nikula from <a href="show_bug.cgi?id=94248#c79">comment #79</a>)
<span class="quote">> The CEA-861-E spec says we must default to limited color range for CEA modes
> with bpp other than 18. We've probably changed this between 4.4 and 4.8, I
> don't remember exactly.</span >
No, that change actually was introduced in 2013 and it's being discussed over
there:
<a href="https://bugzilla.kernel.org/show_bug.cgi?id=94921">https://bugzilla.kernel.org/show_bug.cgi?id=94921</a>
So why am I suddenly seeing this regression between 4.4 and 4.8?
Maybe a bug?
(In reply to Jani Nikula from <a href="show_bug.cgi?id=94248#c79">comment #79</a>)
<span class="quote">> Whichever we default to will be correct for some
> people, and wrong for some others. Thus the neutral option is to go by the
> spec.</span >
Can you please tell me how I can change the default behavior other than
manually setting it via xrandr? I've already asked it in
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Broadcast RGB setting not working via xorg.conf"
href="show_bug.cgi?id=96501">https://bugs.freedesktop.org/show_bug.cgi?id=96501</a> but nobody answered.
Is there any way to change the default behavior? As you can see from the
comments in <a href="https://bugzilla.kernel.org/show_bug.cgi?id=94921">https://bugzilla.kernel.org/show_bug.cgi?id=94921</a>, it's really
quite an issue.
Especially now, since something seems to have broke between 4.4 and 4.8.</pre>
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