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<body><span class="vcard"><a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> <span class="fn">Lakshmi</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Second display does not show up on dock of Lenovo Helix 2"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109750">bug 109750</a>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Priority</td>
<td>high
</td>
<td>medium
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Second display does not show up on dock of Lenovo Helix 2"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109750#c16">Comment # 16</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Second display does not show up on dock of Lenovo Helix 2"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109750">bug 109750</a>
from <span class="vcard"><a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> <span class="fn">Lakshmi</span></a>
</span></b>
<pre>(In reply to Ville Syrjala from <a href="show_bug.cgi?id=109750#c14">comment #14</a>)
<span class="quote">> Hmm. Could be the BIOS has a borked VBT. Looks like you're booting in EFI
> mode so it shouldn't be due to busted legacy mode support in the BIOS (which
> is somewhat common).
>
> Please attach a copy of /sys/kernel/debug/dri/0/i915_vbt
>
> Also when you have the external display connected to the dock please do this
> as root:
> "modprobe i2c-dev ; for i in `seq 0 9` ; do i2cdetect -y $i 0x50 0x50 ; done"
> and attach the result here. That should tell is if an EDID can be detected
> on any i2c bus.
>
> Is the BIOS capable of lighting up the external display on the dock? If yes,
> it would be helpful if you can boot without loading i915 (eg. pass
> modprobe.blacklist=i915,snd_hda_intel to the kernel cmdline and prevent all
> gui stuff from starting up). Once up and running w/o i915 loaded you should
> grab a register dump with "intel_reg dump" and attach here. intel_reg is
> part of igt: git://anongit.freedesktop.org/xorg/app/intel-gpu-tools</span >
(In reply to Lakshmi from <a href="show_bug.cgi?id=109750#c15">comment #15</a>)
<span class="quote">> Uwe, any updates here? Can you please follow the instructions given in
> <a href="show_bug.cgi?id=109750#c14">Comment 14</a> and attach all required information. This is needed to proceed
> further with the investigation.</span >
No feedback from more than a month. Dropping the Priority to Medium.</pre>
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