I've observed quite the same behaviour as reported here on a Lenovo Thinkpad R60 (Radeon Mobility X1400). If additional data (lspci, Xorg.0.log, ...) would help fixing this bug, let me know.
I've observed quite the same behaviour as reported here on a Lenovo Thinkpad R60 (Radeon Mobility X1400). If additional data (lspci, Xorg.0.log, ...) would help fixing this bug, let me know.