[qubes-users] Re: Using screen via dp alt mode

['wzrd73' via qubes-users]

> On Friday, March 22, 2019 at 11:42:56 AM UTC-5, wzrd73 wrote:
>
> > Hallo,
> > is there a way to use an additional screen via dp alt mode (usb-c) in Qubes 
> > 4?
> > I'd like to attach an Asus Zen Screen to my laptop. The screen only has a 
> > usb-c port. My laptop has usb-a und usb-c and hdmi ports.
> > There are usb-c to hdmi adapters, but as far as I know they don't work in 
> > the other direction.
>
> I'm driving a monitor from my usb-c port (although the cable converts it to 
> HDMI). I would start with looking at the output of xrandr. On my computer, I
> see a listing for DP1.
>
> If you install arandr in dom0 you'll get an easier to use interface.
>
> Jon
>
>
My output of xrandr:
[User@dom0 ~]$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 
340mm x 190mm
   1920x1080 60.00*+  40.00
   1400x1050 59.98
   1600x900  60.00
   1280x1024 60.02
   1280x960  60.00
   1368x768  60.00
   1280x720  60.00
   1024x768  60.00
   1024x576  60.00
   960x540   60.00
   800x600   60.3256.25
   864x486   60.00
   640x480   59.94
   720x405   60.00
   640x360   60.00
HDMI1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)


Message on the screen, when I connect it: "Your device does not support DP Alt 
mode, please install the latest driver and try again."

The device shows up as:
sys-usb:2-4.1 - Realtek_BillBoard_Device_123..FGH
sys-usb:3-3.2 - DisplayLink_MB16AC_821.M0419

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[qubes-users] Re: Using screen via dp alt mode

[solworth%uic.edu via qubes-users]

On Friday, March 22, 2019 at 11:42:56 AM UTC-5, wzrd73 wrote:
> Hallo,
> 
> is there a way to use an additional screen via dp alt mode (usb-c) in Qubes 4?
> 
> I'd like to attach an Asus Zen Screen to my laptop. The screen only has a 
> usb-c port. My laptop has usb-a und usb-c and hdmi ports.
> 
> There are usb-c to hdmi adapters, but as far as I know they don't work in the 
> other direction.

I'm driving a monitor from my usb-c port (although the cable converts it to 
HDMI).  I would start with looking at the output of xrandr.  On my computer, I
see a listing for DP1.

If you install arandr in dom0 you'll get an easier to use interface.

Jon

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