My ThinkPad X32 experiences random lockups as well after upgrading to dapper. Apparantly, it is caused by xserver-xorg-driver-ati, because lockups no longer occur after switching to the vesa driver.
-------- Section "Device" Identifier "ATI Technologies, Inc. Radeon Mobility 9000 (M6 LY)" Driver "vesa" BusID "PCI:1:0:0" EndSection --------
I filed a bug report #55570 <https://launchpad.net/bugs/55570>.
My ThinkPad X32 experiences random lockups as well after upgrading to dapper. Apparantly, it is caused by xserver- xorg-driver- ati, because lockups no longer occur after switching to the vesa driver.
--------
Section "Device"
Identifier "ATI Technologies, Inc. Radeon Mobility 9000 (M6 LY)"
Driver "vesa"
BusID "PCI:1:0:0"
EndSection
--------
I filed a bug report #55570 <https:/ /launchpad. net/bugs/ 55570>.