Pappan wrote: > Can you add "acpi=off" to boot parameters and check whether the problem > occurs ? > > Hi - Sorry for delay - had to wait until lunchtime before I could boot the people off the PCs and re-kick them :-) (I have 4 of these PCs in production, all with the same problems). zls@gl0:~$ dmesg | grep ailed [ 68.046653] PCI: Failed to allocate mem resource #6:20000@88000000 for 0000:01:00.0 [ 68.046893] PCI: Failed to allocate mem resource #6:20000@90000000 for 0000:02:00.0 [ 81.390581] nvidia: probe of 0000:02:00.0 failed with error -1 [ 81.390631] NVRM: The NVIDIA probe routine failed for 1 device(s). [ 84.349619] cdrom: open failed. [ 100.305005] ide: failed opcode was: 0xec (Note xorg.conf only enable 1 VGA card - NOT multiseat, even though the 2nd VGA card is in the slot) Also - from /var/log/kern.log Aug 7 13:41:40 localhost kernel: [17179569.184000] Intel MultiProcessor Specification v1.4 Aug 7 13:41:40 localhost kernel: [17179569.184000] Virtual Wire compatibility mode. Aug 7 13:41:40 localhost kernel: [17179569.184000] OEM ID: Product ID: APIC at: 0xFEE00000 Aug 7 13:41:40 localhost kernel: [17179569.184000] Processor #0 15:6 APIC version 20 Aug 7 13:41:40 localhost kernel: [17179569.184000] Enabling APIC mode: Flat. Using 0 I/O APICs Aug 7 13:41:40 localhost kernel: [17179569.184000] BIOS bug, no explicit IRQ entries, using default mptable. (tell your hw vendor) Aug 7 13:41:40 localhost kernel: [17179569.184000] Processors: 1 Aug 7 13:41:40 localhost kernel: [17179569.184000] Allocating PCI resources starting at 80000000 (gap: 7ff00000:80100000) Aug 7 13:41:40 localhost kernel: [17179569.184000] Built 1 zonelists Aug 7 13:41:40 localhost kernel: [17179569.184000] Kernel command line: root=/dev/sda2 ro acpi=off expert Aug 7 13:41:40 localhost kernel: [17179569.184000] mapped APIC to ffffd000 (fee00000) **** then further down in the logfile ***** Aug 7 13:41:40 localhost kernel: [ 68.042150] pnp: PnP ACPI: disabled Aug 7 13:41:40 localhost kernel: [ 68.042195] PnPBIOS: Scanning system for PnP BIOS support... Aug 7 13:41:40 localhost kernel: [ 68.042728] PnPBIOS: Found PnP BIOS installation structure at 0xc00fe0e0 Aug 7 13:41:40 localhost kernel: [ 68.042781] PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0xb82f, dseg 0x400 Aug 7 13:41:40 localhost kernel: [ 68.042945] PnPBIOS: 2 nodes reported by PnP BIOS; 2 recorded by driver Aug 7 13:41:40 localhost kernel: [ 68.043002] PCI: Probing PCI hardware Aug 7 13:41:40 localhost kernel: [ 68.043048] PCI: Probing PCI hardware (bus 00) Aug 7 13:41:40 localhost kernel: [ 68.043785] PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1 Aug 7 13:41:40 localhost kernel: [ 68.044043] Boot video device is 0000:01:00.0 Aug 7 13:41:40 localhost kernel: [ 68.044891] PCI: Transparent bridge - 0000:00:1e.0 Aug 7 13:41:40 localhost kernel: [ 68.046653] PCI: Failed to allocate mem resource #6:20000@88000000 for 0000:01:00.0 Aug 7 13:41:40 localhost kernel: [ 68.046712] PCI: Bridge: 0000:00:01.0 Aug 7 13:41:40 localhost kernel: [ 68.046755] IO window: disabled. Aug 7 13:41:40 localhost kernel: [ 68.046800] MEM window: 98000000-9cffffff Aug 7 13:41:40 localhost kernel: [ 68.046845] PREFETCH window: 80000000-87ffffff Aug 7 13:41:40 localhost kernel: [ 68.046893] PCI: Failed to allocate mem resource #6:20000@90000000 for 0000:02:00.0 Aug 7 13:41:40 localhost kernel: [ 68.046950] PCI: Bridge: 0000:00:03.0 Aug 7 13:41:40 localhost kernel: [ 68.046993] IO window: disabled. Aug 7 13:41:40 localhost kernel: [ 68.047038] MEM window: 90000000-94ffffff Aug 7 13:41:40 localhost kernel: [ 68.047083] PREFETCH window: 88000000-8fffffff Aug 7 13:41:40 localhost kernel: [ 68.047130] PCI: Bridge: 0000:00:1c.0 Aug 7 13:41:40 localhost kernel: [ 68.047172] IO window: disabled. Aug 7 13:41:40 localhost kernel: [ 68.047218] MEM window: disabled. Aug 7 13:41:40 localhost kernel: [ 68.047262] PREFETCH window: disabled. Aug 7 13:41:40 localhost kernel: [ 68.047308] PCI: Bridge: 0000:00:1c.4 Aug 7 13:41:40 localhost kernel: [ 68.047351] IO window: disabled. Aug 7 13:41:40 localhost kernel: [ 68.047396] MEM window: disabled. Aug 7 13:41:40 localhost kernel: [ 68.047441] PREFETCH window: disabled. Aug 7 13:41:40 localhost kernel: [ 68.047487] PCI: Bridge: 0000:00:1c.5 Aug 7 13:41:40 localhost kernel: [ 68.047532] IO window: 2000-2fff Aug 7 13:41:40 localhost kernel: [ 68.047578] MEM window: 9d100000-9d1fffff Aug 7 13:41:40 localhost kernel: [ 68.047623] PREFETCH window: disabled. Aug 7 13:41:40 localhost kernel: [ 68.047671] PCI: Bridge: 0000:00:1e.0 Aug 7 13:41:40 localhost kernel: [ 68.047715] IO window: 1000-1fff Aug 7 13:41:40 localhost kernel: [ 68.047761] MEM window: 9d000000-9d0fffff Aug 7 13:41:40 localhost kernel: [ 68.047807] PREFETCH window: 95000000-950fffff Aug 7 13:41:40 localhost kernel: [ 68.047863] PCI: No IRQ known for interrupt pin A of device 0000:00:01.0. Please try using pci=biosirq. Aug 7 13:41:40 localhost kernel: [ 68.047925] PCI: Setting latency timer of device 0000:00:01.0 to 64 Aug 7 13:41:40 localhost kernel: [ 68.047936] PCI: No IRQ known for interrupt pin A of device 0000:00:03.0. Please try using pci=biosirq. Aug 7 13:41:40 localhost kernel: [ 68.047997] PCI: Setting latency timer of device 0000:00:03.0 to 64 Aug 7 13:41:40 localhost kernel: [ 68.048032] PCI: No IRQ known for interrupt pin A of device 0000:00:1c.0. Please try using pci=biosirq. Aug 7 13:41:40 localhost kernel: [ 68.048094] PCI: Setting latency timer of device 0000:00:1c.0 to 64 Aug 7 13:41:40 localhost kernel: [ 68.048113] PCI: No IRQ known for interrupt pin A of device 0000:00:1c.4. Please try using pci=biosirq. Aug 7 13:41:40 localhost kernel: [ 68.048175] PCI: Setting latency timer of device 0000:00:1c.4 to 64 Aug 7 13:41:40 localhost kernel: [ 68.048194] PCI: No IRQ known for interrupt pin B of device 0000:00:1c.5. Please try using pci=biosirq. Aug 7 13:41:40 localhost kernel: [ 68.048256] PCI: Setting latency timer of device 0000:00:1c.5 to 64 Aug 7 13:41:40 localhost kernel: [ 68.048268] PCI: Setting latency timer of device 0000:00:1e.0 to 64 Aug 7 13:41:40 localhost kernel: [ 68.048772] audit: initializing netlink socket (disabled) Aug 7 13:41:40 localhost kernel: [ 68.048822] audit(1154958072.316:1): initialized Aug 7 13:41:40 localhost kernel: [ 68.048912] highmem bounce pool size: 64 pages Aug 7 13:41:40 localhost kernel: [ 68.049009] VFS: Disk quotas dquot_6.5.1 Thanks for the interest, Zoltan -- =========================================== Geograph (Pty) Ltd. P.O. Box 31255, Tokai 7966, South Africa. B3-106 Tokai Village, cnr Vans/Tokai Rds, Tokai 7945, Western Cape, South Africa. Tel: +27-21-7154329 Mobile: +27-83-6004028 Fax: +27-86-6115323 ===========================================