On Wednesday 22 Sep 2004 1:22 pm, James Wilkinson wrote: > Gary Stainburn wrote: [snip] > > I hereby pronounce that weird. > > A few things you might want to try: > > * Linux handles USB devices slightly differently if they're > hotplugged (plugged in while the computer is turned on). You might > see if that makes any difference: Remember that you can try > unplugging and replugging the hub as well as the devices. (With mouse plugged into the pc) I unplugged the hub and reconnected, followed by doing the same for the joystick and printer. Made no difference to the lsusb output. /var/log/message entried found afterwards: Sep 24 17:15:37 garyh kernel: hub.c: new USB device 00:1d.7-3, assigned address 4 Sep 24 17:15:37 garyh kernel: usb.c: USB device not accepting new address=4 (error=-71) Sep 24 17:15:38 garyh kernel: hub.c: new USB device 00:1d.7-3, assigned address 5 Sep 24 17:15:38 garyh kernel: usb.c: USB device not accepting new address=5 (error=-71) Happens when the hub is plugged in. > > * What sort of USB subsystem do you have? Try lspci | grep -i usb > Some PCs will have two different USB controllers, and you could > try plugging the hub into a different port. [root@garyh root]# lspci | grep -i usb 00:1d.0 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #1 (rev 02) 00:1d.1 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #2 (rev 02) 00:1d.2 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #3 (rev 02) 00:1d.3 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #4 (rev 02) 00:1d.7 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02) [root@garyh root]# I tried different sockets on the PC with no effect. > > * What happens if you only have one device plugged into the hub: > does lsusb see them then? (You might as well try each of the > devices). Tried this, but didn't make any difference. The only /var/log/messages were when I unplugged/plugged the hub. > > * Is the hub powered or unpowered? (Does it have a separate power > supply?) If not, then you could be finding that the power to the > hub is marginal. The hub is powered. PLus, if that's the problem I'd expect to have problems in XP too. > > Hope this helps, > > James. Gary (still scratching head) -- Gary Stainburn This email does not contain private or confidential material as it may be snooped on by interested government parties for unknown and undisclosed purposes - Regulation of Investigatory Powers Act, 2000
