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[Launchpad Bug Tracker <98684@xxxxxxxxxxxxxxxxxx>]

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Binary package hint: gdm

On Feisty, when switching users on a system running an ATI (Radeon
9700pro) using the fglrx driver, the system goes into a blank screen and
you can never return to a console.

CTRL+F# does not work, so you cannot go to a text console either. The
only thing that works is to ssh into the box from another one and
restart the system. Killing gdm and X would freeze the system.

I tested on an Intel-based GPU system and this problem did not happen.
Its possible that this problem affects Nvidia users as well, though I
have no way to confirm this. Some in the #ubuntu-devel IRC talked about
this issue for Nvidia cards (pitti on IRC #ubuntu-devel).

** Affects: fglrx-installer (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux-restricted-modules-2.6.20 (Ubuntu)
     Importance: Medium
         Status: Fix Released

** Affects: linux-restricted-modules-2.6.22 (Ubuntu)
     Importance: Undecided
         Status: Won't Fix

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Switching users (switch user) blank screen on fglrx (ATI driver)
https://bugs.edge.launchpad.net/bugs/98684
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