Ubuntu
xserver-xorg-video-intel package

  1. Bug #1263681
  2. Comment #23

Comment 23 for bug 1263681

Revision history for this message
Marius Gedminas (mgedmin) wrote :

I didn't have a DisplayPort cable before. I used an analog VGA cable and hotplug detection worked reliably.

I could boot a 12.04 LTS LiveCD and test it, if it's important.

I'd like to help debug this. It would help if I knew how hotplug detection is supposed to work, and what tools there are for me to see where it gets lost. Does the Intel video kernel driver do the detection? Does it poll or wait for an interrupt? How does the kernel communicate hotplug events to userspace? What tool do I run to watch for those events?