I confirm this bug, too.
My setup:
Thinkpad X201 in Ultrabase connected to external monitor via hdmi-DVI (using the original Lenovo hdmi to DVI converter).
All worked as expected in Ubuntu 10.10.
An additional remark:
Using only the external monitor doesn't work with the screen setup tool provided by Ubuntu. But I is easily done using the 3rd party application "Multiple Screens". Unfortunately, the setting is gone after reboot.
I confirm this bug, too.
My setup:
Thinkpad X201 in Ultrabase connected to external monitor via hdmi-DVI (using the original Lenovo hdmi to DVI converter).
All worked as expected in Ubuntu 10.10.
An additional remark:
Using only the external monitor doesn't work with the screen setup tool provided by Ubuntu. But I is easily done using the 3rd party application "Multiple Screens". Unfortunately, the setting is gone after reboot.