|Hardware components||Status under Linux||Notes|
|HP Pavilion DV9225US||P/N RP122VA#ABA (part of the HP Pavilion DV9000 series). 7.8 lbs|
|AMD Turion 64 x2, TL-60, 2Ghz. Dual core, x86_64 architecture||Works||recognized correctly as SMP|
|2GB ram, DDR2, in 2 dimm||Works|
|Nvidia GeForce Go 7600, 256MB||Works||Works at full resolution out of the box (nvidia binary drivers not required)|
|2x 512KB L2 cache||Works|
|Lightscribe 8x DVD+/-R/RW w/ Dual Layer||Works, partially tested||DVD reading OK (unencrypted out of the box, encrypted once additional libraries loaded), rest untested|
|17" WXGA+, 1440x900||Works||Modes: 800x600, 1024x768, 1152x864, 1280x720, 1440x900, all 60 Hz|
|10/100/1000 wired ethernet, Nvidia Nforce||Works|
|802.11 a/b/g wireless ethernet, Broadcom BCM 43xx||Doesn't Work||Couldn't get to work, even after trying to download firmware.|
|HP Pavilion webcam||Works with driver effort||Made by Microdia, USB ID 0c45:62c0. According to http://mxhaard.free.fr/spca5xx.html, supported by the V4L2 Linux-UVC driver. FC6 install instructions at https://lists.berlios.de/pipermail/linux-uvc-devel/2007-February/001406.html. After following these instructions and running "modprobe uvcvideo", the camera works fine in Ekiga under V4L2.|
|101 Key compatible keyboard||Works||Media buttons above keyboard do not work|
|ExpressCard/54 slot, supports ExpressCard/34||Untested|
|5 in 1 card reader||Partially works||SD card automatically mounted fine. XD card not recognized at all.|
|4x USB 2.0||Works, with workaround||Works after interrupt problem resolved, see below|
|15.16"L x 11.65"W x 1.57"H||Works||Wide screen may be too long for some laptop bags|
|90W||The optional auto/air/ac adaptor has a button to "run laptop only" as opposed to the normal "run laptop and charge battery at the same time" mode, so it's more likely to work in planes and cars. 8 cell Li-ion battery.|
|Synaptics touchpad||Works||With scroll feature on right side|
|160GB HD: ST9160821AS, SATA 150, 2.5" 5400RPM||Works||Nvidia Nforce 430/410 SATA controller|
|Nvidia MCP51 soundcard||Works||OK, sound autodetected by system-config-coundcard, uses snd-hda-intel module. Sound works fine. Using headphones does not disable speakers.|
|Infrared remote||Partially works||Inserts standard navigation keys fine.|
Fedora Core 6 uses the 2.6.18 and 2.6.19 kernels. It also uses ALSA by default.
The laptop would lock up approximately 30 seconds after boot each time. After looking at boot options, I turned off ACPI at first (kernel option: "ACPI=off"), which allowed the laptop to boot and run stably indefinitely. It did report "irq7, nobody cared, disabling" in a kernel message (see below); this was the interrupt assigned to ehci_hcd, the USB 2.0 support.
That error message suggested adding "irqpoll" to the kernel command line; I later went back to try that and got the same lockups. Here are the combinations I tried:
|No kernel parameters||lockup in ~30 seconds|
|acpi=off||Stable, "nobody cared" warning, no USB 2.0|
|acpi=ht||Stable, "nobody cared" warning, no USB 2.0|
|irqpoll||lockup in ~30 seconds|
|pci=routeirq||Stable, "nobody cared" warning, no USB 2.0|
|pci=usepirqmask||Stable, "nobody cared" warning, no USB 2.0|
|acpi=off irqfixup||Stable, no warning, USB 2.0 good|
|irqfixup||lockup in ~30 seconds|
|acpi=ht irqfixup||Stable, no warning, USB 2.0 good|
In the end, I stuck with "acpi=ht irqfixup". Since ACPI is mostly disabled, I can't get battery charge information, and can't suspend, but it's better than locking up. The scant references to "irqfixup" imply that it hurts performance a little, but other than that, it seems to work quite well.
irq 7: nobody cared (try booting with the "irqpoll" option) Call Trace: [
] show_trace+0x34/0x47 [ ] dump_stack+0x12/0x17 [ ] __report_bad_irq+0x30/0x7d [ ] note_interrupt+0x1bd/0x200 [ ] handle_edge_irq+0x102/0x134 [ ] do_IRQ+0x100/0x151 [ ] ret_from_intr+0x0/0xa [ ] default_idle+0x2c/0x4a [ ] cpu_idle+0x8b/0xae [ ] start_kernel+0x240/0x245 [ ] _sinittext+0x15a/0x15e handlers: [ ] (usb_hcd_irq+0x0/0x52) Disabling IRQ #7
The Broadcom BCM4310 doesn't seem to be supported under Linux, even by the bcm43xx module and some effort trying to track down the right firmware to download at module load. I'm wired only at the moment, as this has no PCMCIA or cardbus slots.
00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.1 RAM memory: nVidia Corporation C51 Memory Controller 0 (rev a2) 00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2) 00:00.3 RAM memory: nVidia Corporation C51 Memory Controller 5 (rev a2) 00:00.4 RAM memory: nVidia Corporation C51 Memory Controller 4 (rev a2) 00:00.5 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.6 RAM memory: nVidia Corporation C51 Memory Controller 3 (rev a2) 00:00.7 RAM memory: nVidia Corporation C51 Memory Controller 2 (rev a2) 00:02.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:03.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:04.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2) 00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3) 00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3) 00:0a.3 Co-processor: nVidia Corporation MCP51 PMU (rev a3) 00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev f1) 00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev f1) 00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2) 00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2) 00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 03:00.0 Network controller: Broadcom Corporation BCM4310 UART (rev 01) 05:00.0 VGA compatible controller: nVidia Corporation G70 [GeForce Go 7600] (rev a1) 07:05.0 FireWire (IEEE 1394): Ricoh Co Ltd Unknown device 0832 07:05.1 Class 0805: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19) 07:05.2 System peripheral: Ricoh Co Ltd Unknown device 0843 (rev 01) 07:05.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 0a) 07:05.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)
CPU0 CPU1 0: 156669993 7920483 XT-PIC-XT timer 1: 56 1364 IO-APIC-edge i8042 2: 0 0 XT-PIC-XT cascade 5: 34 0 IO-APIC-edge libata 7: 49515547 156658454 IO-APIC-edge ehci_hcd:usb2 8: 1 0 IO-APIC-edge rtc 10: 3 0 IO-APIC-edge eth0 11: 1 0 IO-APIC-edge ohci_hcd:usb1, sdhci:slot0, ohci1394, HDA Intel 12: 97 0 IO-APIC-edge i8042 14: 19 0 IO-APIC-edge ide0 NMI: 0 0 LOC: 164562831 164565162 ERR: 0
William is an Open-Source developer, enthusiast, and advocate from New Hampshire, USA.
This document is Copyright 2007, William Stearns <firstname.lastname@example.org>.
Last updated 2/28/2007.
The master copy of this document is at http://www.stearns.org/doc/hp-dv9225us-fedora-6.html .