Hello Gene, it is the same netbook. I have windows XP and grml linux (Kernel 2.6.31, squeeze) running. If i connect the voyager into another usb-port of the netbook, the voyager works well. If the voyager is connected into the usb-hub, the braille-cells will work, but the keys of the braille-display and the routing-keys will not work. The command lsusb with vendor-id of the 7x usb-hub will be as: Bus 001 Device 003: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 1 Single TT bMaxPacketSize0 64 idVendor 0x05e3 Genesys Logic, Inc. idProduct 0x0608 USB-2.0 4-Port HUB bcdDevice 77.64 iManufacturer 0 iProduct 1 USB2.0 Hub iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 100mA 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 0x0001 1x 1 bytes bInterval 12 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 4 wHubCharacteristic 0x00e0 Ganged power switching Ganged overcurrent protection TT think time 32 FS bits Port indicators bPwrOn2PwrGood 50 * 2 milli seconds bHubContrCurrent 100 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0303 lowspeed power enable connect Port 2: 0000.0100 power Port 3: 0000.0503 highspeed power enable connect Port 4: 0000.0503 highspeed power enable connect Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0001 Self Powered and: Bus 001 Device 005: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 1 Single TT bMaxPacketSize0 64 idVendor 0x05e3 Genesys Logic, Inc. idProduct 0x0608 USB-2.0 4-Port HUB bcdDevice 77.64 iManufacturer 0 iProduct 1 USB2.0 Hub iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 100mA 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 0x0001 1x 1 bytes bInterval 12 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 4 wHubCharacteristic 0x00e0 Ganged power switching Ganged overcurrent protection TT think time 32 FS bits Port indicators bPwrOn2PwrGood 50 * 2 milli seconds bHubContrCurrent 100 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0503 highspeed power enable connect Port 2: 0000.0100 power Port 3: 0000.0503 highspeed power enable connect Port 4: 0000.0303 lowspeed power enable connect Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0001 Self Powered Regards. Dietmar > acollins at icsmail.net schrieb am 28.12.11: > HelloDietmar, Are you plugging the hub into the laptop where the > Voyager is otherwise working, or you using a different machine? > Gene Collins >> Hello, >> i have triedd different hubs and i have tested the hub with >> power-adapter under windows xp and nvda and the original optelec >> drivers. That works well. >> A numpad-keyboard works well on this hub. >> >> Thanks and regards. >> >> Dietmar >> >>> acollins at icsmail.net schrieb am 28.12.11: >> >>> Hello. Have you tried a different port on the hub? Have you >>> tried a different hub altogether? It's obviously a problem with >>> the port on the hub, or the hub itself, since the voyager works >>> fine when connected by itself. You might check the documentation >>> for the Voyager. Some usb devices specificly require that you >>> not plug them in to a hub. In fact, I would check the docs >>> first. >> >>>> Hello, >>>> i use speakup and brltty with a optelec voyager 44 on grml >>>> linux. If i plug in the voyager brailledisplay directly in into >>>> my netbook, all works well. >>>> If i plug in the brailledisplay into a usb-hub with a extra >>>> poweradapter, the brailledisplay works, but the keys of the >>>> voyager wil not work. >>>> What can i do, so that the brailledisplay works correctly. >>>> >>>> Regards. >>>> >>>> Dietmar >>>> _______________________________________________ >>>> Speakup mailing list >>>> Speakup at braille.uwo.ca >>>> http://speech.braille.uwo.ca/mailman/listinfo/speakup >>> _______________________________________________ >>> Speakup mailing list >>> Speakup at braille.uwo.ca >>> http://speech.braille.uwo.ca/mailman/listinfo/speakup >> >> _______________________________________________ >> Speakup mailing list >> Speakup at braille.uwo.ca >> http://speech.braille.uwo.ca/mailman/listinfo/speakup > _______________________________________________ > Speakup mailing list > Speakup at braille.uwo.ca > http://speech.braille.uwo.ca/mailman/listinfo/speakup