dmesg about displaylink

[  484.900094] usb 2-6: new high speed USB device number 3 using ehci_hcd
[  490.030183] usb 2-6: device descriptor read/64, error -32
[  490.295211] udlfb: DisplayLink IOGEAR External VGA - serial #016543
[  490.295221] udlfb: vid_17e9&pid_0058&rev_0102 driver's dlfb_data struct at ffff880314ac5000
[  490.295227] udlfb: console enable=0
[  490.295230] udlfb: fb_defio enable=0
[  490.295309] udlfb: vendor descriptor length:1e data:1e 5f 01 001c 05 00 01 03 04 02
[  490.295315] udlfb: DL chip limited to 1500000 pixel modes
[  490.295430] udlfb: allocated 4 65024 byte urbs
[  490.375994] udlfb: 1680x1050 beyond chip capabilities
[  490.376002] udlfb: 720x400 valid mode
[  490.376007] udlfb: 640x480 valid mode
[  490.376011] udlfb: 640x480 valid mode
[  490.376015] udlfb: 640x480 valid mode
[  490.376019] udlfb: 640x480 valid mode
[  490.376023] udlfb: 800x600 valid mode
[  490.376027] udlfb: 800x600 valid mode
[  490.376031] udlfb: 800x600 valid mode
[  490.376035] udlfb: 800x600 valid mode
[  490.376039] udlfb: 832x624 valid mode
[  490.376043] udlfb: 1024x768 valid mode
[  490.376047] udlfb: 1024x768 valid mode
[  490.376051] udlfb: 1024x768 valid mode
[  490.376055] udlfb: 1280x1024 valid mode
[  490.376058] udlfb: 1152x864 valid mode
[  490.376062] udlfb: 1680x1680 beyond chip capabilities
[  490.376067] udlfb: 1280x1024 valid mode
[  490.376071] udlfb: 1280x960 valid mode
[  490.376075] udlfb: 1152x864 valid mode
[  490.376079] udlfb: Reallocating framebuffer. Addresses will change!
[  490.378976] udlfb: 1280x960 valid mode
[  490.378982] udlfb: set_par mode 1280x960
[  490.390910] udlfb: DisplayLink USB device /dev/fb1 attached. 1280x960 resolution. Using 4800K framebuffer memory