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    <body><span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span> changed
          <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - I915 driver caused VGA got no ignal after plug-out then plug-in the VGA cable"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=101044">bug 101044</a>
          <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEW
           </td>
           <td>NEEDINFO
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - I915 driver caused VGA got no ignal after plug-out then plug-in the VGA cable"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=101044#c12">Comment # 12</a>
              on <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - I915 driver caused VGA got no ignal after plug-out then plug-in the VGA cable"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=101044">bug 101044</a>
              from <span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span></b>
        <pre>The hardware in question does not have VGA natively. There's a DP-to-VGA branch
adapter. The unplug can be seen in the logs, but there's no hotplug event for
the re-plug.

Please try this:

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 1ae9de5cf39c..0d28b6dc4153 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2468,6 +2468,8 @@ void intel_dp_sink_dpms(struct intel_dp *intel_dp, int
mode)
 {
        int ret, i;

+       return;
+
        /* Should have a valid DPCD by this point */
        if (intel_dp->dpcd[DP_DPCD_REV] < 0x11)
                return;</pre>
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