Bug#463063: xserver-xorg-video-intel: session hangs with black screen when switching back from VT

[Marcus Better <marcus@better.se>]

Package: xserver-xorg-video-intel
Version: 2:2.2.0-1
Severity: important

Sometimes when switching back to X from another VT (console or X), the
session does not come back. Instead I get a black screen, and it
doesn't respond to input.

I can switch to other VTs however, even other X sessions, and they
work correctly, but the broken VT is only restored after killing the
session.

X.org log files don't show anything that looks suspicious. I *think*
this only occurs on the second of two X session, i.e. display :1.

This is a Thinkpad R60 laptop running kernel 2.6.24 (amd64) with vesafb.

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.24-melech (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=sv_SE.UTF-8, LC_CTYPE=sv_SE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages xserver-xorg-video-intel depends on:
ii  libc6              2.7-6                 GNU C Library: Shared libraries
ii  libdrm2            2.3.0-4               Userspace interface to kernel DRM 
ii  xserver-xorg-core  2:1.4.1~git20080118-1 Xorg X server - core server

xserver-xorg-video-intel recommends no packages.

-- no debconf information