ubuntu-x-swat team mailing list archive

[Bryce Harrington <766395@xxxxxxxxxxxxxxxxxx>]

Wow, sorry you're having so much trouble with getting the projector to
work with natty, that sucks.

However, what we need for diagnosing these kinds of problems are
detailed steps and logs collected along the way showing what went wrong
where.

Generally, for X what works best is if you can reproduce the issues
using just the xrandr command line tool ('man xrandr' has some examples
and usage details).  This is because Fn+F8 goes through a few service
layers (kernel, acpi, gnome-settings-daemon, etc.) which X doesn't
really have control over, and themselves can be bugged.

Here are a few tools that may help you in your investigation:

* The xdiagnose utility can be used to turn on graphics debug messages
(the first checkbox in the dialog).  These messages show up in your
'dmesg' output

* Running 'xrandr' by itself can help indicate what monitors X thinks
are enabled, and it shows you what resolution, refresh rate, and so on
that it uses.

* Sometimes testing newer X or kernel bits can bring a fix.
  - The xorg-edgers PPA has new X bits
  - New bleeding edge upstream kernel snapshots can be found at http://kernel.ubuntu.com/~kernel-ppa/mainline/

Good luck!


** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/766395

Title:
  multiple monitors fail to display