Hello, Ankush Even before I sent my last message to this list, I was completely up to date. I am running the latest stable kernel update: kernel-2.6.10-1.760_FC3 I am also running the latest stable update of hotplug: hotplug-2004_04_01-8.1 As I mentioned, I was running both of these when I sent my last message. Also, my problem is that my devices dissappear, not that they are not detected. If I unplug a device that has "dissappeared" and plug it into a different USB2 port, it is immediately detected. Also, if I unplug a device and plug it back into the same port (I've only tried that after waiting a few minutes), the device magically reappears. I can't remember though if the device is actually functional. Also, I am now running a PCI USB2 card, and I've been using the burner successfully ever since. I just tried to use our scanner while it was plugged into that PCI USB2 card, and I ended up having to reboot about five times. When I plugged it back into one of the front USB2 ports on our machine (this port is connected directly to the mainboard instead of being a PCI card) the strangest thing happened: I could finally scan without the scanner hanging. I hate to do it, but I think I will take the scanner to a machine that I have access to that runs Windows XP. I will see how it behaves... If there is a development or testing kernel or hotplug RPM that you think I should try, please let me know. Again, our devices get detected and re-detected just fine, the problem is that they just dissappear.... Steven P. Ulrick Just to throw my 2 cents into this discussion. I installed FC3 kernel 2.6.10-1.741 onto my gateway 7200x system. When i plugged in my usb braille display, it sometimes detects and other times it doesn't. I ran yum to get fully up to date, and still have the problem. I just unplugged and re-plugged the display into one of the usb ports on the back of the pc, the /var/logs/messages file shows the following info: Feb 16 09:08:02 oasis brltty[623]: USB URB status error 84: Invalid or incomplete multibyte or wide character. Feb 16 09:08:02 oasis brltty[623]: USB configuration set error 71: Protocol error. Feb 16 09:08:02 oasis kernel: usb 2-1: USB disconnect, address 38 Feb 16 09:08:02 oasis kernel: usb 2-1.1: USB disconnect, address 39 Feb 16 09:08:07 oasis kernel: usb 2-1: new full speed USB device using uhci_hcd and address 40 Feb 16 09:08:07 oasis kernel: hub 2-1:1.0: USB hub found Feb 16 09:08:07 oasis kernel: hub 2-1:1.0: 3 ports detected Feb 16 09:08:08 oasis kernel: usb 2-1.1: new full speed USB device using uhci_hcd and address 41 Feb 16 09:08:10 oasis kernel: usb 2-1: USB disconnect, address 40 Feb 16 09:08:10 oasis kernel: usb 2-1.1: USB disconnect, address 41 Feb 16 09:08:10 oasis kernel: usb 2-1: new full speed USB device using uhci_hcd and address 42 Feb 16 09:08:10 oasis kernel: hub 2-1:1.0: USB hub found Feb 16 09:08:10 oasis kernel: hub 2-1:1.0: 3 ports detected Feb 16 09:08:11 oasis kernel: usb 2-1.1: new full speed USB device using uhci_hcd and address 43 Feb 16 09:08:11 oasis kernel: usb 2-1.1: config index 0 descriptor too short (expected 32, got 8) Feb 16 09:08:11 oasis kernel: usb 2-1.1: config 1 has 0 interfaces, different from the descriptor's value: 1 Feb 16 09:08:12 oasis brltty[623]: USB interface claim error 2: No such file or directory. Feb 16 09:08:17 oasis brltty[623]: USB interface claim error 2: No such file or directory. Feb 16 09:08:18 oasis kernel: usb 2-1: USB disconnect, address 42 Feb 16 09:08:18 oasis kernel: usb 2-1.1: USB disconnect, address 43 Feb 16 09:08:20 oasis kernel: usb 2-1: new full speed USB device using uhci_hcd and address 44 Feb 16 09:08:20 oasis kernel: hub 2-1:1.0: USB hub found Feb 16 09:08:20 oasis kernel: hub 2-1:1.0: 3 ports detected Feb 16 09:08:21 oasis kernel: usb 2-1.1: new full speed USB device using uhci_hcd and address 45 Feb 16 09:08:23 oasis brltty[623]: Alva driver, version 2.2 my /proc/bus/usb/device file contains the following info: T: Bus=02 Lev=02 Prnt=44 Port=00 Cnt=01 Dev#= 45 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=06b0 ProdID=0001 Rev=20.02 S: Manufacturer=ALVA B.V. S: Product=ALVA 544 Satellite S: SerialNumber=54400015 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 2 Cls=00(>ifc ) Sub=00 Prot=00 Driver=usbfs E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=20ms E: Ad=02(O) Atr=02(Bulk) MxPS= 8 Ivl=0ms As a side note, I have greater success if iI disable haldaemon. -- This is an email sent via the webforum on http://fcp.homelinux.org
