This is the warning:
(WW) Open APM failed (/dev/apm_bios) (No such file or directory)
(II) RADEON(0): [RESUME] Attempting to re-init Radeon hardware.
(II) RADEON(0): [agp] Mode 0x1f000207 [AGP 0x1106/0x3099; Card 0x1002/0x514c]
I get this warning few times in one session.
I don't use APM. I use ACPI.
*** This bug has been marked as a duplicate of 2141 ***