<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [hsw DP-to-DVI] DP hot plug fails if booted without Monitor Attached" href="https://bugs.freedesktop.org/show_bug.cgi?id=85924#c53">Comment # 53</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [hsw DP-to-DVI] DP hot plug fails if booted without Monitor Attached" href="https://bugs.freedesktop.org/show_bug.cgi?id=85924">bug 85924</a> from <a class="email" href="mailto:tprevite@gmail.com" title="Todd Previte <tprevite@gmail.com>"> Todd Previte</a> <pre>The failing VGA dongle is not going through the same path as the other dongles. The DP->VGA dongle is an active dongle whereas these others are passive. You'll notice in the logs that this dongle is responding to AUX transactions versus the other ones which timeout. As an initial test, please restart the machine and add the following parameter to the kernel command line: i915.disable_power_well=0 Please report here to indicate the results of this test. Also, it might be a good idea to file a separate bug to track this VGA dongle problem, since it's an active adapter and not a passive one. -T</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>