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            <b><a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - No signal output when connected with HDMI Monitor (asus PA238Q)"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=103331#c8">Comment # 8</a>
              on <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - No signal output when connected with HDMI Monitor (asus PA238Q)"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=103331">bug 103331</a>
              from <span class="vcard"><a class="email" href="mailto:ethan.hsieh@canonical.com" title="Ethan Hsieh <ethan.hsieh@canonical.com>"> <span class="fn">Ethan Hsieh</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=138414" name="attach_138414" title="kern.log (drm.debug=0x14)">attachment 138414</a> <a href="attachment.cgi?id=138414&action=edit" title="kern.log (drm.debug=0x14)">[details]</a></span>
kern.log (drm.debug=0x14)

Still can reproduce the issue with kernel-drm-tip-2018-03-29.
<a href="http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/2018-03-29/">http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/2018-03-29/</a>

kernel: [1.340931] [drm:intel_hdmi_detect [i915]] [CONNECTOR:71:HDMI-A-1]
kernel: [1.390957] [drm:intel_hdmi_set_edid [i915]] HDMI GMBUS EDID read
failed, retry using GPIO bit-banging
kernel: [3.570781] [drm:intel_hdmi_detect [i915]] [CONNECTOR:82:HDMI-A-2]
kernel: [3.571559] [drm:intel_hdmi_set_edid [i915]] HDMI GMBUS EDID read
failed, retry using GPIO bit-banging
kernel: [3.581936] [drm:intel_hdmi_detect [i915]] [CONNECTOR:90:HDMI-A-3]
kernel: [3.582754] [drm:intel_hdmi_set_edid [i915]] HDMI GMBUS EDID read
failed, retry using GPIO bit-banging</pre>
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