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<body><span class="vcard"><a class="email" href="mailto:lei.a.liu@intel.com" title="liulei <lei.a.liu@intel.com>"> <span class="fn">liulei</span></a>
</span> changed
<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [BSW Regression]System fails to find eDP monitor."
href="https://bugs.freedesktop.org/show_bug.cgi?id=84265">bug 84265</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>ASSIGNED
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [BSW Regression]System fails to find eDP monitor."
href="https://bugs.freedesktop.org/show_bug.cgi?id=84265#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [BSW Regression]System fails to find eDP monitor."
href="https://bugs.freedesktop.org/show_bug.cgi?id=84265">bug 84265</a>
from <span class="vcard"><a class="email" href="mailto:lei.a.liu@intel.com" title="liulei <lei.a.liu@intel.com>"> <span class="fn">liulei</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=84265#c2">comment #2</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=84265#c1">comment #1</a>)
> > Have you perhaps upgraded the BIOS on the machine recently?
> </span >
Both BIOS V35 and V36 fail to detect eDP.
<span class="quote">> That's my question as well. I had another report of eDP going missing on one
> machine and there the HDMIC/DP_C registers report the port as not detected.
> My own RVP board with the latest BIOS seems to work just fine however.
>
> What does this say on the failing machine?
> intel_reg_read 0x1e1140 0x1e1160 0x1e116c 0x1e4100 0x1e4200 0x1e4300</span >
root@x-bsw02:~# intel_reg_read 0x1e1140 0x1e1160 0x1e116c 0x1e4100 0x1e4200
0x1e4300
0x1E1140 : 0x81C
0x1E1160 : 0x1A
0x1E116C : 0x82000B5E
0x1E4100 : 0x1C
0x1E4200 : 0xA0010018
0x1E4300 : 0x1C</pre>
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