Pretty much the same happens for me too in Gutsy Gibbon/Canon PowerShot G6:
"An error occurred in the io-library ('Bad parameters'): Could not find USB device (vendor 0x4a9, product 0x30b3). Make sure this device is connected to the computer." [EMAIL PROTECTED]:/home/deepfire # lsusb Bus 001 Device 001: ID 0000:0000 Bus 002 Device 003: ID 046d:c024 Logitech, Inc. Bus 002 Device 002: ID 058f:9254 Alcor Micro Corp. Hub Bus 002 Device 001: ID 0000:0000 Bus 002 Device 004: ID 0b38:0003 [EMAIL PROTECTED]:/home/deepfire # ls -l /proc/bus/usb/ .usbfs/ 001/ 002/ devices [EMAIL PROTECTED]:/home/deepfire # ls -l /proc/bus/usb/001/ total 0 crw-rw-r-- 1 root root 189, 0 May 5 15:29 001 [EMAIL PROTECTED]:/home/deepfire # ls -l /proc/bus/usb/002 total 0 crw-rw-r-- 1 root root 189, 128 May 5 15:29 001 crw-rw-r-- 1 root root 189, 129 May 5 15:29 002 crw-rw---- 1 root plugdev 189, 130 May 5 15:29 003 crw-rw-r-- 1 root root 189, 131 May 5 15:29 004 [EMAIL PROTECTED]:/home/deepfire # cat /proc/bus/usb/devices T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh=10 B: Alloc= 37/900 us ( 4%), #Int= 4, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.18-mm3-betelheise ohci_hcd S: Product=OHCI Host Controller S: SerialNumber=0000:00:02.0 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms T: Bus=02 Lev=01 Prnt=01 Port=08 Cnt=01 Dev#= 2 Spd=12 MxCh= 4 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=058f ProdID=9254 Rev= 3.12 S: Manufacturer=ALCOR S: Product=Generic USB Hub C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=255ms T: Bus=02 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 4 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0b38 ProdID=0003 Rev= 1.00 S: Product=USB-compliant keyboard C:* #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms I: If#= 1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=usbhid E: Ad=82(I) Atr=03(Int.) MxPS= 4 Ivl=10ms T: Bus=02 Lev=01 Prnt=01 Port=09 Cnt=02 Dev#= 3 Spd=1.5 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=046d ProdID=c024 Rev=98.02 S: Manufacturer=B16_b_02 S: Product=USB-PS/2 Optical Mouse C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 98mA I: If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=usbhid E: Ad=81(I) Atr=03(Int.) MxPS= 5 Ivl=10ms T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh=10 B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.18-mm3-betelheise ehci_hcd S: Product=EHCI Host Controller S: SerialNumber=0000:00:02.1 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=256ms ** Changed in: gthumb (Ubuntu) Status: Rejected => Confirmed -- gThumb half-works with my digital camera https://bugs.launchpad.net/bugs/24746 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs