Ubuntu
xorg-server package

[xmir] Hotplugged monitors sometimes not detected until you log out/in again

Bug #1216493 reported by Daniel van Vugt
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mir
Won't Fix
Medium
Unassigned
xorg-server (Ubuntu)
Won't Fix
Medium
Unassigned

Bug Description

Hotplugged monitors are not detected under XMir until you log out/in again.

Interestingly, unity-system-compositor remains unchanged and stable across logins. This indicates the Mir server knows about the hotplugging, but the client (XMir) just isn't getting the information until it restarts.

Revision history for this message
Daniel van Vugt (vanvugt) wrote :

This might be related to bug 1216245, but it's unclear right now.

tags: added: multimonitor
Revision history for this message
kevin gunn (kgunn72) wrote :

i think this is OBE, on the latest qa-testing2 ppa (mm13) i am hotplugging fine

kevin gunn (kgunn72)
Changed in xmir:
status: New → Invalid
Changed in mir:
status: New → Invalid
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

Yep, it's randomly started happening again. /sys/class/drm/*/status shows connected by Mir/XMir is not immediately aware. And xrandr isn't showing it.

Changed in mir:
status: Invalid → New
Changed in xmir:
status: Invalid → New
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

-by +but

summary: - Hotplugged monitors not detected until you log out/in again
+ Hotplugged monitors sometimes not detected until you log out/in again
Robert Ancell (robert-ancell)
Changed in xmir:
status: New → Triaged
Changed in mir:
status: New → Triaged
importance: Undecided → High
Changed in xmir:
importance: Undecided → High
Revision history for this message
Alexandros Frantzis (afrantzis) wrote : Re: Hotplugged monitors sometimes not detected until you log out/in again

What's the output of "udevadm monitor --property" while plugging the monitor in and out?

Revision history for this message
Alexandros Frantzis (afrantzis) wrote :

Also, do you get similar behavior with Mir only (try mir_demo_client_display_config which prints configuration change event)?

Revision history for this message
kevin gunn (kgunn72) wrote :

wondering if we fixed this via boston sprint

summary: - Hotplugged monitors sometimes not detected until you log out/in again
+ [xmir] Hotplugged monitors sometimes not detected until you log out/in
+ again
tags: added: xmir
Changed in mir:
importance: High → Medium
Changed in xmir:
importance: High → Medium
Robert Ancell (robert-ancell)
affects: xmir → xorg-server (Ubuntu)
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

XMir 1.0 (the old Xorg extension) is now deprecated and is not being maintained or fixed. It is replaced by the new 'Xmir' binary (package 'xmir') introduced in Ubuntu 15.10 wily.

Changed in mir:
status: Triaged → Won't Fix
Changed in xorg-server (Ubuntu):
status: Triaged → Won't Fix
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