Bug#440802: xserver-xorg-video-ati: DPMS + suspend/resume, display never recovers

[joshua at nirmalvihar.info]

Package: xserver-xorg-video-ati
Version: 1:6.6.3-2
Severity: normal

I have this device:

00:14.0 VGA compatible controller: ATI Technologies Inc Rage Mobility P/M (rev 64) (prog-if 00 [VGA])

When I suspend/resume while DPMS is engaged then the X display refuses 
to recover. It is still possible to switch to a different virtual 
console (Ctl-Alt-F1) and that works. The virtual console is visible. X 
can be restored by restarting the display manager.

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.22.1-b3 (PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages xserver-xorg-video-ati depends on:
ii  libc6                  2.6-2             GNU C Library: Shared libraries
ii  xserver-xorg-core      2:1.3.0.0.dfsg-11 X.Org X server -- core server

xserver-xorg-video-ati recommends no packages.

-- no debconf information