Sorry forgot to add that in the /var/log/Xorg.0.log the following statements are now being made (instead of the error):
...
(WW) "dri2" will not be loaded unless you've specified it to be loaded elsewhere.
...
(II) "dri2" will be loaded even though the default is to disable it.
...
Furthermore I have tried both the "ati" and the "radeon" driver.
Sorry forgot to add that in the /var/log/Xorg.0.log the following statements are now being made (instead of the error):
...
(WW) "dri2" will not be loaded unless you've specified it to be loaded elsewhere.
...
(II) "dri2" will be loaded even though the default is to disable it.
...
Furthermore I have tried both the "ati" and the "radeon" driver.