I went the easy way too, but Linux doesn’t recognize the monitor (hence the subject line) and offers a max of 1024x768 which doesn’t even fill the screen.

I also searched for Visio drivers and found none.

The “xrandr” method shown below seems to be the tool currently used to force resolution on an unknown monitor.
After five years “in recovery” from hacking Linux, I’m re-learning . . .

I’m using the VGA port since I’m talking to this monitor via a KVM that only knows VGA. I’ll try HDMI temporarily but then I won’t be able to juggle operation with a Mac Mini.

_______________

On 20180301, at 05:06, kitepilot@kitepilot.com wrote:

I am a simple guy, so I go the easy way first...   :)
I have been able to control any display (including HDMI, 2 VGA's in a DVI) on desktops and laptops using 'Menu' -> 'Preferences' -> 'Display'
And it is persistent.
What problem are you having with it?
ET 
______________

Victor Odhner writes: 

I'm trying to bring an unknown monitor up to full resolution.
It's a Visio E241-A1 (TV set), claiming 1920x1080.
I’m running Linux Mint 18.3 Sylvia, with Mate.
The computer (a new desktop) also drives an HDMI cable to a projector, but that’s turned off right now.

I used --newmode with xrandr and it seemed to accept that,
but then the --addmode said it didn’t know the new mode:

    xrandr: cannot find mode 1920x1080_60.00

Details below.
So, is there a way to make this work?

The Details:

xrandr: cannot find mode 1920x1080_60.00

Here's the advice I've been working for:

https://unix.stackexchange.com/questions/227876/how-to-set-custom-resolution-using-xrandr-when-the-resolution-is-not-available-i

Original source: https://gist.github.com/debloper/2793261

vodhner@MusicTeam ~ $ xrandr -q
Screen 0: minimum 8 x 8, current 1024 x 768, maximum 32767 x 32767
DP1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768      60.00* 
   800x600       60.32    56.25  
   848x480       60.00  
   640x480       59.94  
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
HDMI3 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis

vodhner@MusicTeam ~ $ gtf 1020 1080 60

  # 1024x1080 @ 60.00 Hz (GTF) hsync: 67.08 kHz; pclk: 92.30 MHz
  Modeline "1024x1080_60.00"  92.30  1024 1088 1200 1376  1080 1081 1084 1118  -HSync +Vsync

vodhner@MusicTeam ~ $ xrandr --newmode "1024x1080_60.00"  92.30  1024 1088 1200 1376  1080 1081 1084 1118  -HSync +Vsync

vodhner@MusicTeam ~ $ xrandr --addmode DP1 "1920x1080_60.00"
xrandr: cannot find mode "1920x1080_60.00"

vodhner@MusicTeam ~ $ xrandr --output DP1 --mode "1920x1080_60.00"
xrandr: cannot find mode 1920x1080_60.00
vodhner@MusicTeam ~ $ 

Thanks,

Victor

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