<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [HSW-M/BYT/BDW/BSW]udevadm unable to monitor HDMI plug/unplug event sporadically" href="https://bugs.freedesktop.org/show_bug.cgi?id=82593#c20">Comment # 20</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [HSW-M/BYT/BDW/BSW]udevadm unable to monitor HDMI plug/unplug event sporadically" href="https://bugs.freedesktop.org/show_bug.cgi?id=82593">bug 82593</a> from <a class="email" href="mailto:hugegreenbug@gmail.com" title="Hugh Greenberg <hugegreenbug@gmail.com>"> Hugh Greenberg</a> <pre>(In reply to Hugh Greenberg from <a href="show_bug.cgi?id=82593#c19">comment #19</a>) > (In reply to Jani Nikula from <a href="show_bug.cgi?id=82593#c18">comment #18</a>) > > (In reply to Hugh Greenberg from <a href="show_bug.cgi?id=82593#c11">comment #11</a>) > > > I am experiencing this bug on HSW. udevadm monitor does not show hot plug > > > events and it only triggers the rule below once: > > > > > > SUBSYSTEM=="drm", ACTION=="change", RUN+="script.sh" > > > > > > I'm using the current drm-intel-nightly and I'm using kernel 3.19.6. > > > > Btw, what's the failure mode you see after the missed event? If I'm > > interpreting the situation right, you should still have the picture on > > screen after you replug. > > I'm working on 2 different bugs related to HDMI on Ubuntu Unity. The missed > events didn't cause any problems, but they prevent me from running a command > to fix issues when an event occurs. > > 1. Plugging in the HDMI cable does show a picture on the external screen and > Unity is expanded to both screens, but sometimes, there are corrupted > graphics on the laptop screen. xrandr --auto will refresh the screen. I > can't remember the exact Compiz warning, but it couldn't apply a texture. > > 2. Removing the HDMI cable will not trigger Unity to resize the screen > sometimes. Again xrandr --auto will resize the screen. > > Without your patch, I would need to poll the connector status and I would > rather not do that. Actually, xrandr --auto doesn't fix the graphics corruption, but it does force a resize. Also, I have found that if I remove the hdmi cable slowly, I do not always see a udev event with udevadm monitor.</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> <li>You are the assignee for the bug.</li> </ul> </body> </html>