On Thu, 9 Oct 2014, Dennis Gesker wrote: > I did see that note and link but it was an to a pretty old thread. I > figured something must have happend on this since then. There seem to > be quite a few products with these displaylink chip sets in them. > > If its really just a bad product as as far as linux goes could you > recommend other USB to Dual Monitor product that is supported? I have no idea. Judging by what the MAINTAINERS file says, you should try asking Bernie Thompson <bernie@xxxxxxxxxxxx> on the linux-fbdev@xxxxxxxxxxxxxxx mailing list. He's the maintainer responsible for the udl driver. > [ 3.628131] usb 4-2.3: new SuperSpeed USB device number 3 using xhci_hcd > [ 3.643446] usb 4-2.3: New USB device found, idVendor=17e9, idProduct=4318 > [ 3.643448] usb 4-2.3: New USB device strings: Mfr=1, Product=2, > SerialNumber=3 > [ 3.643449] usb 4-2.3: Product: Dell USB 3.0 Dock > [ 3.643450] usb 4-2.3: Manufacturer: DisplayLink > [ 3.643451] usb 4-2.3: SerialNumber: 30929893 > [ 5.105640] usb 4-2.3: parse_audio_format_rates_v2(): unable to > retrieve number of sample rates (clock 10) > [ 5.105790] usb 4-2.3: parse_audio_format_rates_v2(): unable to > retrieve number of sample rates (clock 10) > [ 5.113739] usb 4-2.3: Warning! Unlikely big volume range (=511), > cval->res is probably wrong. > [ 5.113741] usb 4-2.3: [14] FU [Digital In Playback Volume] ch = 6, > val = -8176/0/16 > [ 5.115121] usb 4-2.3: Warning! Unlikely big volume range (=511), > cval->res is probably wrong. > [ 5.115123] usb 4-2.3: [11] FU [Dell USB Audio Capture Volume] ch = > 2, val = -8176/0/16 > [ 5.116196] usbcore: registered new interface driver snd-usb-audio > [ 5.117073] cdc_ether 4-2.3:1.5 eth1: register 'cdc_ether' at > usb-0000:00:14.0-2.3, CDC Ethernet Device, 00:24:9b:0b:60:24 These error messages suggest that the udl driver isn't going to work with your device. Alan Stern -- 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
