Bug#712594: xserver-xorg-video-radeon: Blank screen on Thinkpad R60 with ATI Radeon Mobility X1400
Package: xserver-xorg-video-radeon
Version: 1:6.14.4-8
Severity: important
Tags: d-i
Dear Maintainer,
I installed Debian 7.0 on a Thinkpad R60 with an ATI Radeon Mobility X1400. On boot, the screen turned blank after I was asked to give my disk encryption password. Without graphical output, the system was not usable.
Both booting with radeon.modeset=0 and editing the file /etc/modprobe.d/radeon-kms.conf (replacing “options radeon modeset=1” with “options radeon modeset=0”) fixes the problem.
I suggest detecting the presence of an ATI Radeon Mobility X1400 graphics card and disabling KMS when installing Debian.
(Additional information deleted since I am reporting from a different system.)
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