Re: usb devices do not appear in dmesg in FC4
- From: John McFee <jemcfee@xxxxxxx>
- Date: Mon, 30 Jan 2006 19:29:32 GMT
Dances With Crows,
You hit the nail right on the head. I had used lspci before but not with the vv option. When I did, for each of the USB and Firewire controllers, the pins were routed to IRQ 0. I made the PNP change in the BIOS and everything works now. I never would havve figured that out in a long time.
Many thanks.
John McFee
Dances With Crows wrote:
On Mon, 30 Jan 2006 05:29:56 GMT, John McFee staggered into the Black Sun and said:
I have an HP Pavilion a1130n computer with an AMD 3500+ 64 Linux 2.6.14-1.1656_FC4 #1 Thu Jan 5 22:13:22 EST 2006 i686 athlon
If I run Windows XP, my usb ports (I have 3 front, 2 back) all work fine and my usb printer does too. When I run Fedora, none of the USB devices are recognized.
I have a /proc/bus/usb directory but there is nothing in it. The HAL daemon is running.
[ snip lsmod output ]
Hmm, ohci_hcd and ehci_hcd are loaded, but usbcore isn't. Unless for unknown reasons, FC4 had usbcore built in but everything else as a module. Try modprobing usbcore. If that doesn't work, do "/sbin/lspci -vv | grep -A6 HCI" [0] and see what you get from that. It should look sort of like this:
00:07.2 USB Controller: FOOBAR Corporation 1234/56 USB (rev 01) (prog-if 00 [OHCI]) Control: [stuff] Status: [stuff] Interrupt: pin D routed to IRQ 19
...if the Interrupt says "pin X routed to IRQ 0" then there's a problem. Fiddle with the BIOS settings (change the "OS Installed" from "non-PNP" to "PNP" or vice versa) to fix that. If it says "UHCI" in the output, you have a UHCI chipset, not an OHCI chipset, and you need to rmmod ohci_hcd and modprobe uhci_hcd.
It might be useful to see the output of "dmesg | grep -1 -i usb" as well.
[0] For some reason, /sbin is not in any user's default PATH on many Redhat-derived distros, hence the full name here.
.
- Follow-Ups:
- Re: usb devices do not appear in dmesg in FC4
- From: Dances With Crows
- Re: usb devices do not appear in dmesg in FC4
- References:
- usb devices do not appear in dmesg in FC4
- From: John McFee
- Re: usb devices do not appear in dmesg in FC4
- From: Dances With Crows
- usb devices do not appear in dmesg in FC4
- Prev by Date: Re: Where to buy a PCI ADSL modem
- Next by Date: Re: Where to buy a PCI ADSL modem
- Previous by thread: Re: usb devices do not appear in dmesg in FC4
- Next by thread: Re: usb devices do not appear in dmesg in FC4
- Index(es):
Relevant Pages
|
