Command dmesg
on my PC gives e.g. following:
[ 0.123440] pci 0000:00:1f.0: [8086:24c0] type 0 class 0x000601
[ 0.123446] * The chipset may have PM-Timer Bug. Due to workarounds for a bug,
[ 0.123447] * this clock source is slow. If you are sure your timer does not have
[ 0.123449] * this bug, please use "acpi_pm_good" to disable the workaround
[ 0.123544] pci 0000:00:1f.1: [8086:24cb] type 0 class 0x000101
What does it mean?
Chipset is an old Intel 845GL/GV / Intel® ICH4