With the xserver-xorg-video-ati driver, the microcode works and fixes the drmCommandBuffer: -22 fault but I can't see what I am typing in the terminal window so there is a rendering flaw there.
With the xserver-xorg-video-radeonhd driver, everything seems fine including the rendering of typing in a terminal window.
radeonhd seems somewhat slower at rendering glxgears than radeon. Both drivers report "IRQ's not enabled, falling back to busy waits: 2 18" while running the program and the gears image always stays in front - overwriting any window you move over it.
Tested the Xorg edgers system.
With the xserver- xorg-video- ati driver, the microcode works and fixes the drmCommandBuffer: -22 fault but I can't see what I am typing in the terminal window so there is a rendering flaw there.
With the xserver- xorg-video- radeonhd driver, everything seems fine including the rendering of typing in a terminal window.
radeonhd seems somewhat slower at rendering glxgears than radeon. Both drivers report "IRQ's not enabled, falling back to busy waits: 2 18" while running the program and the gears image always stays in front - overwriting any window you move over it.
Progress from my point of view.