Bugzilla – Bug 155367
no USB on IBM T42p
Last modified: 2006-03-08 16:40:24 UTC
when plugging in any USB-device to the T42p nothing happens. no recognition by udevmonitor.
Well, being slightly more verbose in your bug reports will tremendously increase their chances of being addressed. I assume this is a udev problem rather than kernel related (I can only guess because you didn't say whether the USB device is recognized by the kernel at all).
ok, how can i test the recognition by the kernel? there is no recognition by udevmonitor, lsusb nothing too. /var/log/messages says nothing either. the usb-controller are recognise by lspci: 00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01) 00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01) 00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01) 00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 01)
*** Bug 155369 has been marked as a duplicate of this bug. ***
Are the USB host controller drivers loaded? What is the output of 'lsmod'? Can you attach the output of 'hwinfo' please?
Created attachment 71411 [details] output of hwinfo
Created attachment 71412 [details] output of lsmod
loaded are these drivers: usbcore 113668 4 ohci_hcd,uhci_hcd,ehci_hcd
This is after you suspended and resumed the machine, right? Or does this happen on a "clean" boot?
And what usb device did you try to plug in?
I tried two (different) bluetooth-dongles, an USB-docking-station and an usb-stick. The devices do their job on other machines, so they are not defect. It is after a clean boot, but (of course) after resume too.
Your hwinfo shows the result after a suspend/resume cycle. Please try a clean boot, and then insert the USB device. Then run 'hwinfo' and attach it to the bug.
Created attachment 71430 [details] output of hwinfo after a clean boot (with usb-dongle connected) hwinfo after rebooting, a dongle is connected.
What is the USB settings in the BIOS? Is it enabled? It looks like your USB host controllers are properly detected, but nothing is being recognized by them at all. If you plug and unplug the device in, with the ethernet cable removed, does the value in /proc/interrupts go up for the usb host controller?
the setting is enabled. what do you mean with the value in /proc/interrupts ? it seems to increase with the timer. No matter if the dongle is plugged in or not. Every cat /proc/interrupts the value is higher.
"Enabled" how? Is there a setting for legacy use of USB devices? And has this machine ever worked properly with regards to USB for any older Linux releases (or any Windows releases?) And yeah, as everything is routed through that one interrupt, it is a bit hard to see if it is incremented or not (the line for the uhci-hcd controller, not the timer line.)
Reassigning to me, as if the kernel can't see the device, udev can't be at fault.
Of course I meant the line with the uhci and not the timer line! If it works with older releases will be tested.
Ok, I'll leave this at NEEDINFO until you can test that.
ok, error is found, the hardware seems to be defect. the same under windows, controler are recognized, but no devices.
Closing bug due to broken hardware.