With 2.6.31-10-generic kernel everything is working fine on Alpha6. Today I upgraded to Beta with the same 2.6.31-10-generic kernel and it works.
With 2.6.31-11 I had the same problem stated in this bug report.
With 2.6.31-10-generic kernel everything is working fine on Alpha6. Today I upgraded to Beta with the same 2.6.31-10-generic kernel and it works.
With 2.6.31-11 I had the same problem stated in this bug report.