I'm seeing the same behavior (screen freeze, mouse still movable) from nvidia. Still nothing interesting in the xorg log, but here's the end of my dmesg:
[ 3361.843042] NVRM: Xid (0000:05): 9, Channel 00000000 Instance 00008069 status 0000001d [ 3361.844898] NVRM: Xid (0000:05): 9, Channel 00000020 Instance 00000000 Intr 00100000
Card is NVIDIA Corporation C51 [GeForce 6150 LE] (rev a2)
The freezes were fewer after updating to kernel 3.4.0-030400-generic, but they still happen.
I'm seeing the same behavior (screen freeze, mouse still movable) from nvidia. Still nothing interesting in the xorg log, but here's the end of my dmesg:
[ 3361.843042] NVRM: Xid (0000:05): 9, Channel 00000000 Instance 00008069 status 0000001d
[ 3361.844898] NVRM: Xid (0000:05): 9, Channel 00000020 Instance 00000000 Intr 00100000
Card is NVIDIA Corporation C51 [GeForce 6150 LE] (rev a2)
The freezes were fewer after updating to kernel 3.4.0-030400- generic, but they still happen.