I just installed Fedora Core 1 on my Dell 8400. I am trying to mount a usb keychain. I do the usual method of mounting a keychain by typing the command: mount /dev/sda1 /mnt/usb. When I go to open it up nothing is there. I tried doing a modprobe usb-storage and when I look at the var/log/messages file I don't see anything with usb. This is strange to me because I just installed Fedora Core 1 on an IBM T41 and usb works fine there. To me it looks like usb isn't even enabled on this box even though the drivers are there. I was wondering if anyone has had a similar problem with this and they know the fix.

What does "dmesg" look like? My first guess is that its an IRQ issue in that FC isn't loading proper acpi support for the machine so all of the goofier pci devices, which includes the USB hub, are all wonked out...

Cheers,

Finegan

When I checked out dmesg all I got was some information saying that it found the usb ports and it found the drivers. I also did a grep for hotplug and nothing showed up on that. Any ideas?

I'm sorry man, I should have been more clear, I kinda need to see "dmesg" if I'm going to be of any help, you can paste the whole thing in here

Cheers,

Finegan

here is what I have in the dmesg:

Linux version 2.4.22-1.2115.nptlcustom (root@localhost.localdomain) (gcc version 3.2.3 20030422 (Red Hat Linux 3.2.3-6)) #5 Fri Nov 5 11:00:06 EST 2004
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000007fe8cc00 (usable)
BIOS-e820: 000000007fe8cc00 - 000000007fe8ec00 (ACPI NVS)
BIOS-e820: 000000007fe8ec00 - 000000007fe90c00 (ACPI data)
BIOS-e820: 000000007fe90c00 - 0000000080000000 (reserved)
BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fed00400 (reserved)
BIOS-e820: 00000000fed20000 - 00000000feda0000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fef00000 (reserved)
BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
1150MB HIGHMEM available.
896MB LOWMEM available.
ACPI: have wakeup address 0xc0001000
On node 0 totalpages: 523916
zone(0): 4096 pages.
zone(1): 225280 pages.
zone(2): 294540 pages.
ACPI: RSDP (v000 DELL ) @ 0x000febf0
ACPI: RSDT (v001 DELL 8400 0x00000007 ASL 0x00000061) @ 0x000fccbc
ACPI: FADT (v001 DELL 8400 0x00000007 ASL 0x00000061) @ 0x000fccf8
ACPI: SSDT (v001 DELL st_ex 0x00001000 MSFT 0x0100000d) @ 0xfffc9180
ACPI: MADT (v001 DELL 8400 0x00000007 ASL 0x00000061) @ 0x000fcd6c
ACPI: BOOT (v001 DELL 8400 0x00000007 ASL 0x00000061) @ 0x000fcdde
ACPI: MCFG (v001 DELL 8400 0x00000007 ASL 0x00000061) @ 0x000fce06
ACPI: HPET (v001 DELL 8400 0x00000007 ASL 0x00000061) @ 0x000fce44
ACPI: DSDT (v001 DELL dt_ex 0x00001000 MSFT 0x0100000d) @ 0x00000000
Kernel command line: ro root=LABEL=/ hdc=ide-scsi rhgb
ide_setup: hdc=ide-scsi
Initializing CPU#0
Detected 3591.178 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 7156.53 BogoMIPS
Memory: 2067240k/2095664k available (1466k kernel code, 28040k reserved, 1080k data, 136k init, 1178160k highmem)
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode cache hash table entries: 131072 (order: 8, 1048576 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 131072 (order: 7, 524288 bytes)
Page-cache hash table entries: 524288 (order: 9, 2097152 bytes)
CPU: Trace cache: 12K uops<6>CPU: L2 cache: 1024K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: bfebfbff 00000000 00000000 00000000
CPU: Common caps: bfebfbff 00000000 00000000 00000000
CPU: Intel(R) Pentium(R) 4 CPU 3.60GHz stepping 04
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au)
mtrr: detected mtrr type: Intel
ACPI: Subsystem revision 20031002
ACPI: Interpreter disabled.
PCI: PCI BIOS revision 2.10 entry at 0xfb768, last bus=4
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 00:1f.2
Transparent bridge - Intel Corp. 82801BA/CA/DB/EB PCI Bridge
PCI: Using IRQ router default [8086/2640] at 00:1f.0
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16)
Starting kswapd
allocated 32 pages and 32 bhs reserved for the highmem bounces
VFS: Disk quotas vdquot_6.5.1
pty: 2048 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS MULTIPORT SHARE_IRQ SERIAL_PCI ISAPNP enabled
ttyS0 at 0x03f8 (irq = 4) is a 16550A
Redundant entry in serial pci_table. Please send the output of
lspci -vv, this message (8086,1080,1028,1000)
and the manufacturer and name of serial board or modem board
to serial-pci-info@lists.sourceforge.net.
register_serial(): autoconfig failed
Real Time Clock Driver v1.10e
NET4: Frame Diverter 0.46
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
hda: ST3160023AS, ATA DISK drive
hdc: _NEC DVD+RW ND-3100AD, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: attached ide-disk driver.
hda: host protected area => 1
hda: 312581808 sectors (160042 MB) w/8192KiB Cache, CHS=19457/255/63
Partition check:
hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 >
ide: late registration of driver.
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 16384 buckets, 128Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
Linux IP multicast router 0.06 plus PIM-SM
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
RAMDISK: Compressed image found at block 0
Freeing initrd memory: 157k freed
VFS: Mounted root (ext2 filesystem).
Journalled Block Device driver loaded
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting. Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
Freeing unused kernel memory: 136k freed
mice: PS/2 mouse device common for all mice
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb-uhci.c: $Revision: 1.275 $ time 02:48:50 Oct 15 2004
usb-uhci.c: High bandwidth mode enabled
PCI: Setting latency timer of device 00:1d.0 to 64
usb-uhci.c: USB UHCI at I/O 0xff80, IRQ 9
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
PCI: Setting latency timer of device 00:1d.1 to 64
usb-uhci.c: USB UHCI at I/O 0xff60, IRQ 5
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 2
hub.c: USB hub found
hub.c: 2 ports detected
PCI: Setting latency timer of device 00:1d.2 to 64
usb-uhci.c: USB UHCI at I/O 0xff40, IRQ 3
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 3
hub.c: USB hub found
hub.c: 2 ports detected
PCI: Setting latency timer of device 00:1d.3 to 64
usb-uhci.c: USB UHCI at I/O 0xff20, IRQ 10
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 4
hub.c: USB hub found
hub.c: 2 ports detected
usb-uhci.c: v1.275:USB Universal Host Controller Interface driver
PCI: Setting latency timer of device 00:1d.7 to 64
ehci_hcd 00:1d.7: PCI device 8086:265c (Intel Corp.)
ehci_hcd 00:1d.7: irq 9, pci mem f885e800
usb.c: new USB bus registered, assigned bus number 5
ehci_hcd 00:1d.7: enabled 64bit PCI DMA
PCI: cache line size of 128 is not supported by device 00:1d.7
ehci_hcd 00:1d.7: USB 2.0 enabled, EHCI 1.00, driver 2003-Jun-19/2.4
hub.c: USB hub found
hub.c: 8 ports detected
usb.c: registered new driver hiddev
usb.c: registered new driver hid
hid-core.c: v1.8.1 Andreas Gal, Vojtech Pavlik <vojtech@suse.cz>
hid-core.c: USB HID support drivers
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,3), internal journal
Adding Swap: 2096440k swap-space (priority -1)
kjournald starting. Commit interval 5 seconds
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,1), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,6), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,5), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,2), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
SCSI subsystem driver Revision: 1.00
hdc: attached ide-scsi driver.
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: _NEC Model: DVD+RW ND-3100AD Rev: 107E
Type: CD-ROM ANSI SCSI revision: 02


If you find out what exactly is up I would really appreciate it. Thanks.

This is weird, usb-storage is loaded right? The USB ports are fine, nothing I mentioned before is actually an issue, scsi emulation is obviously working right... Does /sbin/lsusb even see the device as attached?

Cheers,

Finegan

I'm trying to look and see if sbin/lsusb sees it, but it is not a text file. How do I open it up to read it? I tried vi and all I get are characters, no words.

Sorry I was able to get some of the information out of sbin/lsusb. Here is what it says:

/proc/bus/usb %02x %sjunk at descriptor end: Warning: Invalid descriptor Remote Wakeup Self Powered Control Isochronous Bulk Interrupt none Asynchronous Adaptive Synchronous IN OUT Left Front (L) Right Front (R) Center Front (C) Left Surround (LS) Right Surround (RS) Left of Center (LC) Right of Center (RC) Surround (S) Side Left (SL) Side Right (SR) Top (T) Mute Volume Bass Mid Treble Graphic Equalizer Automatic Gain Delay Bass Boost Loudness (HEADER) (INPUT_TERMINAL) %s
(OUTPUT_TERMINAL) (MIXER_UNIT) (SELECTOR_UNIT) (FEATURE_UNIT) (PROCESSING_UNIT) Enable Processing (EXTENSION_UNIT) TYPE_I_UNDEFINED PCM PCM8 IEEE_FLOAT ALAW MULAW TYPE_II_UNDEFINED MPEG TYPE_III_UNDEFINED IEC1937_AC-3 IEC1937_MPEG-1_Layer1 IEC1937_MPEG-Layer2/3/NOEXT IEC1937_MPEG-2_EXT IEC1937_MPEG-2_Layer1_LS IEC1937_MPEG-2_Layer2/3_LS undefined Invalid desc subtype: (AS_GENERAL) (FORMAT_SPECIFIC) not supported supported but not scalable Supported at Fs and 1/2Fs Reserved Not supported Supported at Fs MPEG-1 dual-channel MPEG-1 only Layer III Layer II Layer I (FORMAT_TYPE) (FORMAT_TYPE_I) Discrete Continuous (FORMAT_TYPE_III) (FORMAT_TYPE_II) Milliseconds Decoded PCM samples EP_GENERAL invalid MaxPacketsOnly Pitch Embedded External (ELEMENT) MIDI Patch Bay EFX XG MIDI Extension GS MIDI Extension MIDI Clock Undefined (MIDI_OUT_JACK) Invalid (MIDI_IN_JACK) Hub Descriptor: DeviceRemovable
PortPwrCtrlMask 0x%02x 0x%02x Main Global Local reserved [ ] %d %s%s
Buffered Bytes Bitfield Non_Volatile Null_State No_Null_Position No_Preferred_State Non_Linear No_Wrap Relative Absolute Variable Array Constant Data Vendor definened Reserved for future use. Logical Physical Application report descriptor too long cannot get report descriptor unknown descriptor type: descriptor length past end: Language IDs: (length=%d)
%04x %s(%s)
Device: ID %04x:%04x %s %s
cannot open %s, %s (%d)
%s/%s/ %s/%s/%s %s/devices version verbose D:vxtP:s:d:V lsusb (usbutils) 0.11 ./usb.ids /usr/share/hwdata/usb.ids string descriptor %d invalid (%02x %02x; len=%d)
cannot get string descriptor %d, error = %s(%d)
Device Descriptor:
bLength %5u
bDescriptorType %5u
bcdUSB %2x.%02x
bDeviceClass %5u %s
bDeviceSubClass %5u %s
bDeviceProtocol %5u %s
bMaxPacketSize0 %5u
idVendor 0x%04x %s
idProduct 0x%04x %s
bcdDevice %2x.%02x
iManufacturer %5u %s
iProduct %5u %s
iSerial %5u %s
bNumConfigurations %5u
Warning: Descriptor too short Configuration Descriptor:
bLength %5u
bDescriptorType %5u
wTotalLength %5u
bNumInterfaces %5u
bConfigurationValue %5u
iConfiguration %5u
bmAttributes 0x%02x
MaxPower %5umA
Warning: Invalid descriptor Interface Descriptor:
bLength %5u
bDescriptorType %5u
bInterfaceNumber %5u
bAlternateSetting %5u
bNumEndpoints %5u
bInterfaceClass %5u %s
bInterfaceSubClass %5u %s
bInterfaceProtocol %5u %s
iInterface %5u %s
Warning: Descriptor too short Warning: Invalid descriptor Endpoint Descriptor:
bLength %5u
bDescriptorType %5u
bEndpointAddress 0x%02x EP %u %s
bmAttributes %5u
Transfer Type %s
Synch Type %s
wMaxPacketSize %5u
bInterval %5u
bRefresh %5u
bSynchAddress %5u
Warning: Descriptor too short Low Freqency Enhancement (LFE) AudioControl Interface Descriptor:
bLength %5u
bDescriptorType %5u
bDescriptorSubtype %5u bcdADC %2x.%02x
wTotalLength %5u
bInCollection %5u
baInterfaceNr(%2u) %5u
(unknown)
Invalid desc subtype: bTerminalID %5u
wTerminalType 0x%04x %s
bAssocTerminal %5u
bNrChannels %5u
wChannelConfig 0x%04x
iChannelNames %5u %s
iTerminal %5u %s
bTerminalID %5u
wTerminalType 0x%04x %s
bAssocTerminal %5u
bSourceID %5u
iTerminal %5u %s
Warning: mixer with %5u input and %5u output channels.
bUnitID %5u
bNrInPins %5u
bNrChannels %5u
wChannelConfig 0x%04x
iChannelNames %5u %s
bmControls 0x%02x
iMixer %5u %s
baSourceID(%2u) %5u
iSelector %5u %s
baSource(%2u) %5u
bUnitID %5u
bSourceID %5u
bControlSize %5u
iFeature %5u %s
bmaControls(%2u) 0x%02x
bUnitID %5u
wProcessType %5u
bNrPins %5u
iChannelNames %5u %s
bControlSize %5u
bmControls(%2u) 0x%02x
iProcessing %5u %s
Process-Specific bUnitID %5u
wExtensionCode %5u
bNrPins %5u
bNrChannels %5u
wChannelConfig %5u
iExtension %5u %s
bTerminalLink %5u
bDelay %5u frames
wFormatTag %5u %s
wFormatTag %5u %s
(unknown)
Invalid desc format type: bmBSID 0x%08x
bmAC3Features 0x%02x
Internal Dynamic Range Control: scalable, separate boost and cut scaling value scalable, common boost and cut scaling value bmMPEGCapabilities 0x%04x
MPEG-2 multilingual support: bmMPEGFeatures 0x%02x
Adaptive multi-channel prediction MPEG-2 7.1 channel augmentation MPEG-2 second stereo bFormatType %5u bNrChannels %5u
bSubframeSize %5u
bBitResolution %5u
bSamFreqType %5u %s
tSamFreq[%2u] %7u
tLowerSamFreq %7u
tUpperSamFreq %7u
wMaxBitRate %5u
wSamplesPerFrame %5u
bSamFreqType %5u %s
AudioControl Endpoint Descriptor:
bLength %5u
bDescriptorType %5u
bDescriptorSubtype %5u (%s)
bmAttributes 0x%02x
bLockDelayUnits %5u %s
wLockDelay %5u %s
Sampling Frequency MIDIStreaming Interface Descriptor:
bLength %5u
bDescriptorType %5u
bDescriptorSubtype %5u
Invalid desc subtype: bcdADC %2x.%02x
wTotalLength %5u
bElementID %5u
bNrInputPins %5u
bNrOutputPins %5u
bInTerminalLink %5u
bOutTerminalLink %5u
bElCapsSize %5u
bmElementCaps 0x%08lx
iElement %5u %s
DLS2 (Downloadable Sounds Level 2) DLS1 (Downloadable Sounds Level 1) GM2 (General MIDI v.2) GM1 (General MIDI v.1) MMC (MIDI Machine Control) MTC (MIDI Time Code) baSourceID(%2u) %5u
BaSourcePin(%2u) %5u
bJackType %5u %s
bJackID %5u
bNrInputPins %5u
iJack %5u %s
bJackType %5u %s
bJackID %5u
iJack %5u %s
MIDIStreaming Endpoint Descriptor:
bLength %5u
bDescriptorType %5u
bDescriptorSubtype %5u (%s)
bNumEmbMIDIJack %5u
baAssocJackID(%2u) %5u
bLength %3u
bDesriptorType %3u
nNbrPorts %3u
wHubCharacteristic 0x%02x 0x%02x
bPwrOn2PwrGood %3u * 2 milli seconds
bHubContrCurrent %3u milli Ampere
Report Descriptor: (length is %d)
Item(%-6s): %s, data= %s%s %s %s %s %s
%s%s %s %s %s
HID Device Descriptor:
bLength %5u
bDescriptorType %5u
bcdHID %2x.%02x
bCountryCode %5u
bNumDescriptors %5u
bDescriptorType %5u %s
wDescriptorLength %5u
Warning: invalid config descriptor
junk at config descriptor end: cannot get config descriptor %d, %s (%d)
Config %d descriptor too long, truncating
Language IDs: none (invalid length string descriptor %02x; len=%d)
Language IDs: none (cannot get min. string descriptor; got len=%d, error=%d:%s)
cannot get config descriptor, %s (%d)
Bus %s Device %s: ID %04x:%04x %s %s
cannot read device descriptor %s (%d)
Error, cannot open USBIDS File "%s", %s
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Invalid HUT type at line %u
Invalid HID type at line %u
Invalid BIAS type at line %u
Invalid PHY type at line %u
Invalid Report type at line %u
Duplicate Report type spec at line %u terminal type %04x %s
Duplicate HUT type spec at line %u terminal type %04x %s
Duplicate HID type spec at line %u terminal type %04x %s
Duplicate protocol spec at line %u class %02x:%02x:%02x %s
Protocol spec without prior Class and Subclass spec at line %u
Invalid protocol spec at line %u
Duplicate product spec at line %u product %04x:%04x %s
Duplicate subclass spec at line %u class %02x:%02x %s
Duplicate HUT Usage Spec at line %u
Duplicate LANGID Usage Spec at line %u
Product/Subclass spec without prior Vendor/Class spec at line %u
Invalid product/subclass spec at line %u
Invalid vendor spec at line %u
Duplicate vendor spec at line %u vendor %04x %s
Invalid audio terminal type at line %u
Duplicate audio terminal type spec at line %u terminal type %04x %s
Invalid class spec at line %u
Duplicate class spec at line %u class %04x %s
Invalid LANGID spec at line %u
Duplicate LANGID spec at line %u language-id %04x %s
Duplicate BIAS type spec at line %u terminal type %04x %s
Duplicate PHY type spec at line %u terminal type %04x %s
Invalid Physdes type at line %u
Duplicate Physdes type spec at line %u terminal type %04x %s
Cls= Dev#= Bus= Prnt= Lev= Vendor= ProdID= Out of memory
read: %s (%d)
lseek: %s (%d)
Bus# %2d
Bus %d Device %d Parent Device %d not found
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Hope this helps

Hi saipi1

lsusb is a command - short for 'list usb' that should list the usb ports and attached devices.

Just type /sbin/lsusb at a terminal command prompt. The /sbin part is the directory that the command resides in.

You need to type this first since it is unlikely that this directory is in your path of folders that should be checked for commands when you enter them at the command prompt. Phew, hope that last bit made sense!

Anyway, type /sbin/lsusb at a terminal command prompt and post the output here.

Cheers,

Steve

Ok, after I tried mounting the keychain with the command mount /dev/sda1 /mnt/usb I still got the error "mount: /dev/sda1 is not a valid block device" I then did what you said by checking the lsusb and I got the following response:
Bus 005 Device 001: 0000:0000
Bus 004 Device 001: 0000:0000
Bus 003 Device 001: 0000:0000
Bus 002 Device 001: 0000:0000
Bus 001 Device 001: 0000:0000

I've tried this keychain on other Fedora core 1 laptops and it works fine. Once it's mounted on the laptop I get the following:
Bus 004 Device 001: 0000:0000
Bus 004 Device 002: 0781:7108 SanDisk Corp.
Bus 003 Device 001: 0000:0000
Bus 002 Device 001: 0000:0000
Bus 001 Device 001: 0000:0000

So I know now it's not the usb keychain. Anyone have any ideas on what's going on here?

Well, your machine that's having the problem can't actually see the device as being attached. It looks as though it can see the usb bus though.

I have to admit, I don't know what the problem is. There aren't any obvious errors previous outputs you have posted.

I had a similar problem with a machine of mine a while ago, and traced it to something to do with the kernel not calling the hotplug program, or the hotplug program itself but the machine had a new HD and install before I ever resolved the problem.

All I can say is 'Any bright ideas Fin?'

Oh yeah, what might be worth checking is the installation on your desktop machine the same version of FC that is on the laptop? And do they show the same kernel version? Issue to check which kernel version on each machine.

Cheers,

Steve

Both machines have the same kernel version because I used the same image for both machines. They are both kernel version 2.4.22-1.2115.nptl. This is the base kernel for Fedora Core 1. Both the laptop and the desktop have this version. I just don't understand why the laptop works and the desktop doesn't?

The only thing I can think of left is that the kernel might be old enough so there's something funky going on with USB. FC's kernel patch backporting is usually bugfix oriented as opposed to feature adding... maybe a 2.6? Or a hand compile of 2.4.28, but like Steve said, all the usual suspects are accounted for. If it works for one and not the other its obviously not the device, so its something hardware specific, and I've always gotten the best mileage out of upgrading kernels around the problem.

Cheers,

Finegan