http://bugs.freedesktop.org/show_bug.cgi?id=16673
--- Comment #24 from Zooko O'Whielacronx
(In reply to comment #21)
I have this problem with my Radeon 2400 Pro, using the current git version -- 4bba1163.
Adding Option "HDP" "off" fixes it.
Give me your PCI ID so I can add it to the blacklist.
02:00.0 VGA compatible controller: ATI Technologies Inc RV610 video device
[Radeon HD 2400 PRO]
Subsystem: VISIONTEK Device 3210
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-