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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [raven] 2160p@60Hz no longer available"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106999#c14">Comment # 14</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [raven] 2160p@60Hz no longer available"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106999">bug 106999</a>
from <span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span></b>
<pre>(In reply to Mike Lothian from <a href="show_bug.cgi?id=106999#c13">comment #13</a>)
<span class="quote">> I know my SkyQ box outputs at 2160@60Hz in 10bit colour</span >
<a href="https://en.wikipedia.org/wiki/HDMI#Refresh_frequency_limits_for_HDR10_video">https://en.wikipedia.org/wiki/HDMI#Refresh_frequency_limits_for_HDR10_video</a>
4k@60@10bpc needs YUV 4:2:2 for HDMI 2.0, so it can't handle RGB (or YUV
4:4:4). That's probably the discrepancy - there's currently no great way for
userspace to select which encoding variant is to be used (or what bpc to send
it at).</pre>
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