Ubuntu
compiz package

Guest session and any other session can't be started if compiz is enabled

Bug #276222 reported by Vincenzo Ciancia
8
Affects Status Importance Assigned to Milestone
compiz (Ubuntu)
Invalid
High
Unassigned

Bug Description

When I installed intrepid alpha 6, compiz was enabled by default and I could run a guest session. With recent updates (last update I think 29 september), if I launch a second session - e.g. using the guest menu entry, it does not start. If I disable desktop effects, then it works. However, if I start X using "X :1" from a console it of course works.

I attach the X server logs, the output from "lspci -vvn", and the contents of /var/log/gdm.

See original description
Revision history for this message
Sebastien Bacher (seb128) wrote :

that's not a gdm issue

Revision history for this message
Vincenzo Ciancia (vincenzo-ml) wrote :

I don't really have an X log.

description: updated
Revision history for this message
Vincenzo Ciancia (vincenzo-ml) wrote :

I can also add that I don't think two X session with compiz running can be done on my video card so this is likely the cause.

Revision history for this message
Vincenzo Ciancia (vincenzo-ml) wrote :

Much ado for nothing... fixed in today's update.

Changed in compiz:
status: New → Fix Released
Revision history for this message
Vincenzo Ciancia (vincenzo-ml) wrote :

The bug is again there, disabling compiz makes guest session work fine otherwise it won't start. Probably this problem comes up at random and is not 100% reproducible.

Changed in compiz:
status: Fix Released → New
Revision history for this message
William Grant (wgrant) wrote :

Confirmed - it doesn't work while compiz is running. i915 here.

Changed in compiz:
status: New → Triaged
Sarah Kowalik (hobbsee-deactivatedaccount)
Changed in compiz:
importance: Undecided → High
milestone: none → ubuntu-8.10
Scott James Remnant (Canonical) (canonical-scott)
Changed in compiz:
assignee: nobody → pitti
Revision history for this message
Martin Pitt (pitti) wrote :

This is in essence a bug in the graphics driver. In fact I had the same problem earlier, but it was fixed with a compiz workaround. See bug 269509 for details.

Can you please do "glxinfo > /tmp/primary.txt" in your normal working session, then start a guest session, let it settle for a minute or two, and then type blindly:

  * Alt-F2
  * glxinfo > /tmp/guest.txt
  * Enter
  * Control-Alt-Backspace to kill the guest session

Then please attach /tmp/primary.txt and /tmp/guest.txt here.

Changed in compiz:
assignee: pitti → nobody
milestone: ubuntu-8.10 → none
status: Triaged → Incomplete
Revision history for this message
Vincenzo Ciancia (vincenzo-ml) wrote :

X seems to start now with intrepid up-to-date. I can see the orange background and can move the mouse pointer. However, the keyboard is completely locked (not even ctrl+alt+fn or ctrl+alt+backspace) and I had to hard-poweroff my machine. So I don't know if this is still the same bug.

Revision history for this message
Robert Ancell (robert-ancell) wrote :

Closing due to lack of response to Martins request. Please re-open if this bug can be reproduced in the latest Ubuntu (9.04)

Changed in compiz (Ubuntu):
status: Incomplete → Invalid
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