Do any of the following options help:
Option "DRI" "false" Option "BusType" "PCI" Option "AGPMode" "4" Option "VGAAccess" "FALSE"
Also, can you try the latest ati git master?
does reverting either or both of the following commits help: 80eee856938756e1222526b6c39cee8b5252b409 653da558148cc601bc1f80253e92ef98c75ef37a
Do any of the following options help:
Option "DRI" "false"
Option "BusType" "PCI"
Option "AGPMode" "4"
Option "VGAAccess" "FALSE"
Also, can you try the latest ati git master?
does reverting either or both of the following commits help: 1222526b6c39cee 8b5252b409 1bc1f80253e92ef 98c75ef37a
80eee856938756e
653da558148cc60