Thanks for your suggestion, Olaf. Unfortunately I can't shutdown the system at the moment, I think in this case changing something in the BIOS is not possible or has no effect, am I right? Or else how could I do that? Btw, I would not know what do change, anyway.
I may look at the BIOS parameters when I restart the computer the next time, maybe I find something. Thanks again, Gero. > -----Original Message----- > From: Olaf Reitmaier Veracierta [mailto:ola...@gmail.com] > Sent: Friday, 3 September 2010 12:31 PM > To: debian-user@lists.debian.org > Subject: Re: How to resume USB hubs > > What about looking or turn to defaults your bios? > > On 02/09/10 23:10, Gero Putzar wrote: > > Hi, > > > > when I tried to log in to my computer today, I realized that the usb > ports > > are not working anymore, therefore I've got no keyboard and no mouse > > anymore. Logging in via ssh, I checked that besides that everything > seems to > > be running fine. > > > > I googled around a bit and assume that the built in usb hubs (there > seem to > > be 4 or 5 of them) shut down maybe as a power saving feature. Does > anyone > > have an idea how to wake them up again? > > > > If I plug in anything into one of the usb ports the /var/log/messages > > doesn't show the usual message that the kernel recognized a new usb > device. > > > > I tried to write to the /sys/bus/usb/... files but unfortunately: > > # echo on> /sys/bus/usb/devices/1-0\:1.0/power/level > > bash: /sys/bus/usb/devices/1-0:1.0/power/level: No such file or > directory > > > > Is there a way to reset the usb hubs or to reinitialise the > corresponding > > kernel drivers or whatever deals with it? (I cannot reboot the > computer at > > the moment.) I tried: > > # modprobe usbcore > > FATAL: Module usbcore not found. > > > > ... and again without success: > > # /etc/init.d/udev restart > > > > I'm running the current Debian Lenny on a HP desktop with the > standard Gnome > > desktop. > > > > Thanks, Gero. > > > > I attached some output of how I tried to figure out the reason. Mouse > and > > keyboard were connected (via an external hub in the monitor) but that > does > > not seem to matter. > > > > # ls /sys/bus/usb/devices > > 1-0:1.0 2-0:1.0 3-0:1.0 4-0:1.0 5-0:1.0 usb1 usb2 usb3 usb4 > usb5 > > # ls -R /sys/bus/usb/devices/1-0\:1.0/ > > /sys/bus/usb/devices/1-0:1.0/: > > bAlternateSetting bInterfaceSubClass ep_81 uevent > > bInterfaceClass bNumEndpoints modalias > > usb_endpoint:usbdev1.1_ep81 > > bInterfaceNumber bus power > > bInterfaceProtocol driver subsystem > > > > /sys/bus/usb/devices/1-0:1.0/power: > > wakeup > > > > # cat /sys/bus/usb/devices/1-0\:1.0/power/wakeup > > > > # echo enable> /sys/bus/usb/devices/1-0\:1.0/power/wakeup > > bash: echo: write error: Invalid argument > > # lsusb > > Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > > > # lsusb -v -s 1: > > > > Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Device Descriptor: > > bLength 18 > > bDescriptorType 1 > > bcdUSB 1.10 > > bDeviceClass 9 Hub > > bDeviceSubClass 0 Unused > > .... > > Configuration Descriptor: > > bLength 9 > > bDescriptorType 2 > > wTotalLength 25 > > bNumInterfaces 1 > > bConfigurationValue 1 > > iConfiguration 0 > > bmAttributes 0xe0 > > Self Powered > > Remote Wakeup > > MaxPower 0mA > > Interface Descriptor: > > bLength 9 > > bDescriptorType 4 > > bInterfaceNumber 0 > > bAlternateSetting 0 > > bNumEndpoints 1 > > bInterfaceClass 9 Hub > > bInterfaceSubClass 0 Unused > > bInterfaceProtocol 0 Full speed (or root) hub > > iInterface 0 > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x81 EP 1 IN > > bmAttributes 3 > > Transfer Type Interrupt > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0002 1x 2 bytes > > bInterval 255 > > Hub Descriptor: > > bLength 9 > > bDescriptorType 41 > > nNbrPorts 2 > > wHubCharacteristic 0x000a > > No power switching (usb 1.0) > > Per-port overcurrent protection > > bPwrOn2PwrGood 1 * 2 milli seconds > > bHubContrCurrent 0 milli Ampere > > DeviceRemovable 0x00 > > PortPwrCtrlMask 0xff > > Hub Port Status: > > Port 1: 0000.0100 power > > Port 2: 0000.0100 power > > Device Status: 0x0003 > > Self Powered > > Remote Wakeup Enabled > > > > > > > > > > -- > --------------------------------------------------------------------- > "You don't know where your shadow will fall", > Somebody.- > --------------------------------------------------------------------- > Ing. Olaf Reitmaier Veracierta<ola...@gmail.com> > --------------------------------------------------------------------- > Personal Web Page -- http://olafrv.com -- i...@olafrv.com > --------------------------------------------------------------------- > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact > listmas...@lists.debian.org > Archive: http://lists.debian.org/4c8079f5.5090...@gmail.com -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/000401cb4b42$88c0e9e0$9a42bd...@com.au
