USB2VGA adapters

Getting your soundcard to work, using Debian on non-i386 hardware, etc

USB2VGA adapters

Postby k828king » 2019-12-01 12:03

I'm trying to get some USB to VGA adapters working with Mint LMDE2 or pure Debian 9 (LXDE) units.

I have two that I believe are SIS based chips and one that is Displaylink DL-165 based.

When I plug one of the SIS into the unit I get a red border around a black screen, the other SIS one the same although it has alternatin black and white horizontal stripes.
The displaylink one gets a green screen.

Most answers I can find say this is all fine and then make changes to the xorg.conf.d file .... but I do not have one of those, so where should should the changes go now?

$ uname -a
Linux unit03 3.16.0-10-586 #1 Debian 3.16.76-1 (2019-11-12) i686 GNU/Linux

$ xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x43 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 2 outputs: 2 associated providers: 0 name:Intel

$ lsusb
Bus 002 Device 007: ID 0711:0900 Magic Control Technology Corp. SVGA Adapter

$ sudo dmesg
[ 4057.600073] usb 2-1: new high-speed USB device number 7 using ehci-pci
[ 4057.732459] usb 2-1: New USB device found, idVendor=0711, idProduct=0900
[ 4057.732474] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4059.166546] usb 2-1: USB2VGA dongle found at address 7
[ 4059.167412] usb 2-1: Allocated 8 output buffers
[ 4059.284084] usb 2-1: 8MB 1 ch/1 r SDR SDRAM, bus width 32
[ 4059.935648] usbcore: registered new interface driver sisusb
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