Hi, I have a v2000 compaq laptop. The realtek network and USB on this machine was not working. After adding to grub.conf "acpi=off apci=off noacpi noapic" the v2000 realtek started working and the USB worked fine... Fantastic! So I thought I would try those same options on my r4000 laptop. they had no effect.... This AMD turion 64 4000+ rating laptop is still running SLOWWW... /proc/cpuinfo has the cpu Mhz running at 2393 below is my dmesg output for the r4000. There is a line talking about "Your time source seems to be instable or some driver is hogging interupts" that seems bad to me but not sure what to do about it . Any further suggestions would be great. THanks, Jerry --------------- Bootdata ok (command line is ro root=LABEL=/1 rhgb quiet apci=off acpi=off noacpi noapic) Linux version 2.6.9-22.0.1.EL (buildcentos at x8664-build) (gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)) #1 Thu Oct 27 14:29:45 CDT 2005 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009f800 (usable) BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved) BIOS-e820: 00000000000d0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000003fef0000 (usable) BIOS-e820: 000000003fef0000 - 000000003feff000 (ACPI data) BIOS-e820: 000000003feff000 - 000000003ff00000 (ACPI NVS) BIOS-e820: 000000003ff00000 - 0000000040000000 (reserved) BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved) BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved) ACPI: RSDP (v000 PTLTD ) @ 0x00000000000f7df0 ACPI: RSDT (v001 PTLTD RSDT 0x06040000 LTP 0x00000000) @ 0x000000003fef9503 ACPI: FADT (v001 HP Piranha 0x06040000 ATI 0x000f4240) @ 0x000000003fefee10 ACPI: MCFG (v001 ATI Piranha 0x06040000 LOHR 0x0000005f) @ 0x000000003fefee84 ACPI: SSDT (v001 PTLTD POWERNOW 0x06040000 LTP 0x00000001) @ 0x000000003fefeec0 ACPI: MADT (v001 PTLTD APIC 0x06040000 LTP 0x00000000) @ 0x000000003fefefb0 ACPI: DSDT (v001 HP 3085 0x06040000 MSFT 0x0100000e) @ 0x0000000000000000 No mptable found. On node 0 totalpages: 261872 DMA zone: 4096 pages, LIFO batch:1 Normal zone: 257776 pages, LIFO batch:16 HighMem zone: 0 pages, LIFO batch:1 DMI present. Intel MultiProcessor Specification v1.4 Virtual Wire compatibility mode. OEM ID: <6>Product ID: <6>APIC at: 0xFEE00000 Processor #0 15:7 APIC version 16 I/O APIC #1 Version 33 at 0xFEC00000. Processors: 1 Checking aperture... CPU 0: aperture @ 6cb0000000 size 32 MB Aperture from northbridge cpu 0 too small (32 MB) No AGP bridge found Built 1 zonelists Kernel command line: ro root=LABEL=/1 rhgb quiet apci=off acpi=off noacpi noapic console=tty0 Initializing CPU#0 PID hash table entries: 4096 (order: 12, 131072 bytes) time.c: Using 1.193182 MHz PIT timer. time.c: Detected 997.121 MHz processor. time.c: Using PIT/TSC based timekeeping. Console: colour VGA+ 80x25 Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Memory: 1025280k/1047488k available (2398k kernel code, 21468k reserved, 1303k data, 164k init) Calibrating delay loop... 1957.88 BogoMIPS (lpj=978944) Security Scaffold v1.0.0 initialized SELinux: Initializing. SELinux: Starting in permissive mode There is already a security framework initialized, register_security failed. selinux_register_security: Registering secondary module capability Capability LSM initialized as secondary Mount-cache hash table entries: 256 (order: 0, 4096 bytes) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 1024K (64 bytes/line) CPU: AMD Athlon(tm) 64 Processor 4000+ stepping 0a Using local APIC NMI watchdog using perfctr0 Using local APIC timer interrupts. Detected 12.464 MHz APIC timer. checking if image is initramfs... it is NET: Registered protocol family 16 PCI: Using configuration type 1 mtrr: v2.0 (20020519) ACPI: Subsystem revision 20040816 ACPI: Interpreter disabled. usbcore: registered new driver usbfs usbcore: registered new driver hub PCI: Probing PCI hardware PCI: Probing PCI hardware (bus 00) PCI: Ignoring BAR0-3 of IDE controller 0000:00:14.1 PCI: Transparent bridge - 0000:00:14.4 PCI-DMA: Disabling IOMMU. IA32 emulation $Id: sys_ia32.c,v 1.32 2002/03/24 13:02:28 ak Exp $ audit: initializing netlink socket (disabled) audit(1135068849.306:1): initialized Total HugeTLB memory allocated, 0 VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 512 (order 0, 4096 bytes) SELinux: Registering netfilter hooks Initializing Cryptographic API ksign: Installing public key data Loading keyring - Added public key 3A21F444BEEAFDD - User ID: CentOS (Kernel Module GPG key) pci_hotplug: PCI Hot Plug PCI Core version: 0.5 Real Time Clock Driver v1.12 Linux agpgart interface v0.100 (c) Dave Jones serio: i8042 AUX port at 0x60,0x64 irq 12 serio: i8042 KBD port at 0x60,0x64 irq 1 Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing enabled RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize divert: not allocating divert_blk for non-ethernet device lo Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx Probing IDE interface ide0... hda: ST9100822A, ATA DISK drive Probing IDE interface ide1... hdc: HL-DT-ST DVD-RW GWA-4082N, ATAPI CD/DVD-ROM drive Probing IDE interface ide2... Probing IDE interface ide3... Probing IDE interface ide4... Probing IDE interface ide5... Using cfq io scheduler ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 hda: max request size: 1024KiB hda: 195371568 sectors (100030 MB) w/8192KiB Cache, CHS=16383/255/63 hda: cache flushes supported hda: hda1 hda2 hda3 hda4 hdc: ATAPI 24X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache Uniform CD-ROM driver Revision: 3.20 ide-floppy driver 0.99.newide usbcore: registered new driver hiddev usbcore: registered new driver usbhid drivers/usb/input/hid-core.c: v2.0:USB HID core driver mice: PS/2 mouse device common for all mice input: AT Translated Set 2 keyboard on isa0060/serio0 Synaptics Touchpad, model: 1 Firmware: 6.2 Sensor: 35 new absolute packet format Touchpad has extended capability bits -> multifinger detection -> palm detection input: SynPS/2 Synaptics TouchPad on isa0060/serio1 md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27 NET: Registered protocol family 2 IP: routing cache hash table of 1024 buckets, 56Kbytes TCP: Hash tables configured (established 262144 bind 37449) Initializing IPsec netlink socket NET: Registered protocol family 1 NET: Registered protocol family 17 powernow-k8: Found 1 AMD Athlon 64 / Opteron processors (version 1.39.04) powernow-k8: 0 : fid 0x2 (1000 MHz), vid 0x10 (1150 mV) powernow-k8: 1 : fid 0xa (1800 MHz), vid 0xe (1200 mV) powernow-k8: 2 : fid 0xe (2200 MHz), vid 0x6 (1400 mV) powernow-k8: 3 : fid 0x10 (2400 MHz), vid 0x2 (1500 mV) powernow-k8: cpu_init done, current fid 0x2, vid 0x10 Freeing unused kernel memory: 164k freed Losing some ticks... checking if CPU frequency changed. kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. warning: many lost ticks. Your time source seems to be instable or some driver is hogging interupts rip __do_softirq+0x41/0xa2 SELinux: Disabled at runtime. SELinux: Unregistering netfilter hooks spurious 8259A interrupt: IRQ7. inserting floppy driver for 2.6.9-22.0.1.EL floppy0: no floppy controllers found 8139too Fast Ethernet driver 0.9.27 divert: allocating divert_blk for eth0 eth0: RealTek RTL8139 at 0xa000, 00:0f:b0:bb:43:61, IRQ 10 eth0: Identified 8139 chip type 'RTL-8100B/8139D' ehci_hcd 0000:00:13.2: EHCI Host Controller ehci_hcd 0000:00:13.2: irq 11, pci mem ffffff0000010000 ehci_hcd 0000:00:13.2: new USB bus registered, assigned bus number 1 ehci_hcd 0000:00:13.2: USB 2.0 enabled, EHCI 1.00, driver 2004-May-10 hub 1-0:1.0: USB hub found hub 1-0:1.0: 8 ports detected ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI) ohci_hcd 0000:00:13.0: OHCI Host Controller ohci_hcd 0000:00:13.0: irq 11, pci mem ffffff0000012000 ohci_hcd 0000:00:13.0: new USB bus registered, assigned bus number 2 hub 2-0:1.0: USB hub found hub 2-0:1.0: 4 ports detected ohci_hcd 0000:00:13.1: OHCI Host Controller ohci_hcd 0000:00:13.1: irq 11, pci mem ffffff0000014000 ohci_hcd 0000:00:13.1: new USB bus registered, assigned bus number 3 hub 3-0:1.0: USB hub found hub 3-0:1.0: 4 ports detected Linux Kernel Card Services options: [pci] [cardbus] [pm] usb 2-4: new full speed USB device using address 2 Yenta: CardBus bridge found at 0000:03:04.0 [103c:3085] Yenta: ISA IRQ mask 0x02f8, PCI irq 10 Socket status: 30000006 Bluetooth: Core ver 2.6 NET: Registered protocol family 31 Bluetooth: HCI device and connection manager initialized Bluetooth: HCI socket layer initialized Bluetooth: HCI USB driver ver 2.7 usbcore: registered new driver hci_usb md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. NET: Registered protocol family 10 Disabled Privacy Extensions on device ffffffff80451480(lo) IPv6 over IPv4 tunneling driver divert: not allocating divert_blk for non-ethernet device sit0 mtrr: no more MTRRs available mtrr: no more MTRRs available mtrr: no more MTRRs available mtrr: no more MTRRs available EXT3 FS on hda2, internal journal device-mapper: 4.4.0-ioctl (2005-01-12) initialised: dm-devel at redhat.com cdrom: open failed. kjournald starting. Commit interval 5 seconds EXT3 FS on hda4, internal journal EXT3-fs: mounted filesystem with ordered data mode. Adding 2048276k swap on /dev/hda3. Priority:-1 extents:1 ip_tables: (C) 2000-2002 Netfilter core team ip_conntrack version 2.1 (4091 buckets, 32728 max) - 496 bytes per conntrack eth0: link down eth0: no IPv6 routers present mtrr: no more MTRRs available mtrr: no more MTRRs available mtrr: no more MTRRs available mtrr: no more MTRRs available