My working configuration is using the fglrx driver. I didn't get information from the non-working configuration; I don't want to restart my X server at the moment, but if it'd be useful I can restart into the old configuration and collect data for you at some point.
Graphics hardware:
01:00.0 VGA compatible controller: ATI Technologies Inc M52 [Mobility Radeon X1300]
My working configuration is using the fglrx driver. I didn't get information from the non-working configuration; I don't want to restart my X server at the moment, but if it'd be useful I can restart into the old configuration and collect data for you at some point.