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<body><span class="vcard"><a class="email" href="mailto:nicholas.stommel@gmail.com" title="Nicholas Stommel <nicholas.stommel@gmail.com>"> <span class="fn">Nicholas Stommel</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Native DisplayPort always defaults to incorrect limited-range RGB on Intel Graphics for 24bpp+ displays"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107476">bug 107476</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">i915 features</td>
<td>display/DP, display/LSPCON
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<td>
</td>
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<td style="text-align:right;">Summary</td>
<td>DisplayPort and LSPCON always defaults to incorrect limited-range RGB on Intel Graphics for 24bpp+ displays
</td>
<td>Native DisplayPort always defaults to incorrect limited-range RGB on Intel Graphics for 24bpp+ displays
</td>
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Native DisplayPort always defaults to incorrect limited-range RGB on Intel Graphics for 24bpp+ displays"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107476#c19">Comment # 19</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Native DisplayPort always defaults to incorrect limited-range RGB on Intel Graphics for 24bpp+ displays"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107476">bug 107476</a>
from <span class="vcard"><a class="email" href="mailto:nicholas.stommel@gmail.com" title="Nicholas Stommel <nicholas.stommel@gmail.com>"> <span class="fn">Nicholas Stommel</span></a>
</span></b>
<pre>Jani Nikula's patch works great for native DisplayPort connections and doesn't
negatively impact native HDMI connections either, which is fantastic.
Unfortunately, I'm not having much luck with DP-LSPCON->HDMI. I am still unable
to get automatic full-range color over DP-LSPCON->HDMI on my test monitors that
work fine with native HDMI and native DP after the patch. I'm afraid I cannot
accurately test LSPCON as I happen to be afflicted by this separate,
unfortunate native-resolution bug:
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Native screen resolution not working correctly over HDMI LSPCON (i915)"
href="show_bug.cgi?id=107503">https://bugs.freedesktop.org/show_bug.cgi?id=107503</a> I will move the LSPCON
discussion back to <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SKL] LSPCon and DisplayPort always output limited range RGB, even when it should output full range RGB"
href="show_bug.cgi?id=100023">https://bugs.freedesktop.org/show_bug.cgi?id=100023</a> to be
resolved separately, and edit the title of this bug to reflect the change,
limiting the issue at hand to just native DP.
The primary bug, and the one for which I originally filed, is native
DisplayPort RGB automatic color-range detection on Intel integrated graphics,
which has been resolved beautifully in Jani's patch. I can finally use my
native DisplayPorts as intended. All things considered, the main problem was
resolved effectively. Remaining concerns about LSPCON I will redirect to the
other open bug thread, perhaps others will have different results over LSPCON
with the patch? Overall, I think this was a *great* step forward. Automatic RGB
color-range detection over native DisplayPort is finally working properly.
Please merge Jani's patch fixing native DP color-range handling.</pre>
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