Same thing here with a lenovo R500 ATI Radon HD 3400 series.
The bug appeared only after I installed the flgrx drivers.
uname -rva Linux batiste-laptop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 GNU/Linux
Same thing here with a lenovo R500 ATI Radon HD 3400 series.
The bug appeared only after I installed the flgrx drivers.
uname -rva
Linux batiste-laptop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 GNU/Linux