Hi, yesterday I decided to get a webcam and got the above mentioned error with two different uvc-supported models (Logitech C270, MS HD 5000). I have a HP dc5850 microtower, it has an AMD Phenom II with AMD780 chipset (Radeon 3100 integrated graphics). I am running Debian testing, kernel 3.1.4. Each time I plugged the Logitech C270 into the system, two other USB devices (Samsung Printer, DLink wireless) stopped working. I only got the other devices working again through a reboot, simple unloading/reloading of the modules wouldn't help. Most of the times also the USB mouse (MS Wireless 5000) would quit (the keyboard is PS/2). I installed the webcam successfully on Windows 7, but when booting into Linux the USB devices stopped working. I returned the Logitech and got a Microsoft HD-5000 webcam instead. I installed it in Windows 7 and rebooted to Linux. I was able to make a test call with Skype on Linux and see my test image there, but when I quit Skype the USB devices stopped working, and rebooting with the webcam attached didn't help, i had to reboot again without the webcam. There is a similar problem described here, but without a solution: http://lkml.org/lkml/2011/4/25/22 I asked for help on the linux-uvc-devel list: Alexey Fisher advised me to try older kernel versions and certain USB options. I tried Debian kernels 2.6.32 and 2.6.38, both would boot with USB up, but as soon as I accessed the webcam, USB would go down with similar error messages as current kernels. Setting "echo -1 > /sys/module/usbcore/parameters/autosuspend" or "echo Y > /sys/module/usbcore/parameters/old_scheme_first" didn't help either. Today I was able to work around this problem by plugging the camera into the frontside USB ports, before I had been using the backside ports. Seems to be a different controller, in the log files it is now usb 2-4 instead of 1-4 or the like. I reported this as a Debian bug, there is additional information in the bug report: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=650736 I am attaching parts of my kern.log. If you need more info, I am glad to give it... Cheers Michael Attaching the Logitech C270: Dec 1 15:55:22 ossietzky kernel: [ 352.973454] usb 1-4: New USB device found, idVendor=046d, idProduct=0825 Dec 1 15:55:22 ossietzky kernel: [ 352.973465] usb 1-4: New USB device strings: Mfr=0, Product=0, SerialNumber=2 Dec 1 15:55:22 ossietzky kernel: [ 352.973473] usb 1-4: SerialNumber: 8D2C8ED0 Dec 1 15:55:23 ossietzky kernel: [ 354.218816] Linux media interface: v0.10 Dec 1 15:55:23 ossietzky kernel: [ 354.229217] Linux video capture interface: v2.00 Dec 1 15:55:24 ossietzky kernel: [ 355.264233] 5:3:3: cannot get freq at ep 0x86 Dec 1 15:55:24 ossietzky kernel: [ 355.403959] usbcore: registered new interface driver snd-usb-audio Dec 1 15:55:24 ossietzky kernel: [ 355.403999] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0825) Dec 1 15:55:24 ossietzky kernel: [ 355.419004] input: UVC Camera (046d:0825) as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.0/input/input9 Dec 1 15:55:24 ossietzky kernel: [ 355.419162] usbcore: registered new interface driver uvcvideo Dec 1 15:55:24 ossietzky kernel: [ 355.419168] USB Video Class driver (1.1.1) Dec 1 15:55:24 ossietzky kernel: [ 355.610354] ehci_hcd 0000:00:12.2: force halt; handshake ffffc90000326424 00004000 00000000 -> -110 Dec 1 15:55:24 ossietzky kernel: [ 355.610366] ehci_hcd 0000:00:12.2: HC died; cleaning up Dec 1 15:55:24 ossietzky kernel: [ 355.610430] usb 1-2: USB disconnect, device number 3 Dec 1 15:55:24 ossietzky kernel: [ 355.610894] wlan0: deauthenticating from 00:c0:02:1a:80:bc by local choice (reason=3) Dec 1 15:55:24 ossietzky kernel: [ 355.732203] cfg80211: Calling CRDA to update world regulatory domain Dec 1 15:55:26 ossietzky kernel: [ 357.152254] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.152370] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.152445] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.152488] usb 1-3: USB disconnect, device number 4 Dec 1 15:55:26 ossietzky kernel: [ 357.152857] usb 1-4: USB disconnect, device number 5 Dec 1 15:55:26 ossietzky kernel: [ 357.153172] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.153865] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.154647] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.154687] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.154751] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.155342] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.155978] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.156948] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.157033] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.157274] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.158023] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.158847] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.160317] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.160404] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.160666] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.161445] 5:3:4: usb_set_interface failed Dec 1 15:55:26 ossietzky kernel: [ 357.162302] 5:3:4: usb_set_interface failed Etc. Microsoft HD-5000 loads successfully, turns bad: Dec 1 16:57:47 ossietzky kernel: [ 1459.700093] usb 1-5: new high speed USB device number 5 using ehci_hcd Dec 1 16:57:47 ossietzky kernel: [ 1459.848657] usb 1-5: New USB device found, idVendor=045e, idProduct=076d Dec 1 16:57:47 ossietzky kernel: [ 1459.848661] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Dec 1 16:57:47 ossietzky kernel: [ 1459.848664] usb 1-5: Product: Microsoft® LifeCam HD-5000 Dec 1 16:57:47 ossietzky kernel: [ 1459.848666] usb 1-5: Manufacturer: Microsoft Dec 1 16:57:48 ossietzky kernel: [ 1460.465318] Linux media interface: v0.10 Dec 1 16:57:48 ossietzky kernel: [ 1460.476086] Linux video capture interface: v2.00 Dec 1 16:57:49 ossietzky kernel: [ 1461.584177] 5:3:1: cannot get freq at ep 0x82 Dec 1 16:57:49 ossietzky kernel: [ 1461.587036] usbcore: registered new interface driver snd-usb-audio Dec 1 16:57:49 ossietzky kernel: [ 1461.587042] uvcvideo: Found UVC 1.00 device Microsoft® LifeCam HD-5000 (045e:076d) Dec 1 16:57:49 ossietzky kernel: [ 1461.592307] input: Microsoft® LifeCam HD-5000 as /devices/pci0000:00/0000:00:12.2/usb1/1-5/1-5:1.0/input/input9 Dec 1 16:57:49 ossietzky kernel: [ 1461.592388] usbcore: registered new interface driver uvcvideo Dec 1 16:57:49 ossietzky kernel: [ 1461.592390] USB Video Class driver (1.1.1) Dec 1 16:57:50 ossietzky kernel: [ 1462.784195] 5:3:1: cannot get freq at ep 0x82 Dec 1 16:57:51 ossietzky kernel: [ 1463.908198] 5:3:1: cannot get freq at ep 0x82 ... Dec 1 17:00:02 ossietzky kernel: [ 1594.705830] wlan0: associate with 00:c0:02:1a:80:bc (try 1) Dec 1 17:00:02 ossietzky kernel: [ 1594.708637] wlan0: RX AssocResp from 00:c0:02:1a:80:bc (capab=0x471 status=0 aid=3) Dec 1 17:00:02 ossietzky kernel: [ 1594.708641] wlan0: associated Dec 1 17:00:02 ossietzky kernel: [ 1594.721821] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready Dec 1 17:00:13 ossietzky kernel: [ 1605.728012] wlan0: no IPv6 routers present Dec 1 17:00:25 ossietzky kernel: [ 1617.612006] ehci_hcd 0000:00:12.2: force halt; handshake ffffc90000326424 00004000 00000000 -> -110 Dec 1 17:00:25 ossietzky kernel: [ 1617.612006] ehci_hcd 0000:00:12.2: HC died; cleaning up Dec 1 17:00:25 ossietzky kernel: [ 1617.612284] usb 1-2: USB disconnect, device number 6 Dec 1 17:00:25 ossietzky kernel: [ 1617.628461] wlan0: deauthenticating from 00:c0:02:1a:80:bc by local choice (reason=3) Dec 1 17:00:25 ossietzky kernel: [ 1617.680162] cfg80211: Calling CRDA to update world regulatory domain Dec 1 17:00:26 ossietzky kernel: [ 1619.080244] usb 1-3: USB disconnect, device number 4 Dec 1 17:00:26 ossietzky kernel: [ 1619.080377] usb 1-5: USB disconnect, device number 5 -- Michael Below <below@xxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
