Hi, I am using ACPI for few years now. As far as I can see, on my machine it is only usfeul for binding events to Power button (like running fbdump) and for powering off. I'm also experimenting with swsusp, which I run by /proc/acpi/sleep. 2.6.0-test4 has a surprise for me: Linux version 2.6.0-test4 (zdzichu@mother) (gcc version 3.3.1) #15 Sat Aug 23 12:03: 02 CEST 2003 Video mode to be used for restore is ffff BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 00000000000a0000 (usable) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 0000000013ff0000 (usable) BIOS-e820: 0000000013ff0000 - 0000000013ff3000 (ACPI NVS) BIOS-e820: 0000000013ff3000 - 0000000014000000 (ACPI data) BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) 319MB LOWMEM available. On node 0 totalpages: 81904 DMA zone: 4096 pages, LIFO batch:1 Normal zone: 77808 pages, LIFO batch:16 HighMem zone: 0 pages, LIFO batch:1 DMI 2.1 present. ACPI disabled because your bios is from 00 and too old ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ You can enable it with acpi=force ACPI: RSDP (v000 VIA693 ) @ 0x000f70c0 ACPI: RSDT (v001 AWARD AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x13ff3000 ACPI: FADT (v001 AWARD AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x13ff3040 ACPI: DSDT (v001 VIA693 AWRDACPI 0x00001000 MSFT 0x0100000a) @ 0x00000000 WTF? My BIOS was perfectly good all those years! And no, there is no upgrade for my motherboard available. Using acpi=force is ugly and un-understandable. There are also some strange directories in /proc : dr-xr-xr-x 2 root root 0 Aug 23 12:50 /proc/ac_adapter/ dr-xr-xr-x 2 root root 0 Aug 23 12:50 /proc/fan they are empty, but they should be in /proc/acpi/ Attached files: Output from dmidecode, lspci -v, my dmesg and /proc/cpuinfo [Please CC me on replies. Thank you]. -- Tomasz Torcz "God, root, what's the difference?" zdzichu@irc.-nie.spam-.pl "God is more forgiving."