[SOLVED] Using HDMI>VGA convertor, how to change resolution

Discussion in 'Troubleshooting' started by gediminas, Nov 21, 2013.

  1. gediminas

    gediminas New Member

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    Hi,

    I have connected a HTMI to VGA converter to my UDOO, and connected to my 1280x1024 VGA monitor.
    Works fine except that it keeps using 1920x1080 resolution. I have tried to add my resolution manually but when I try to change to it, it says that my minimum resolution is 1920x1080 and doesn't allow to do that. Below is output from xrandr:

    Code:
    ubuntu@imx6-qsdl:~$ xrandr
    xrandr: Failed to get size of gamma for output default
    Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
    default connected 1920x1080+0+0 0mm x 0mm
       1920x1080      60.0* 
    
    How to change minimum resolution to something smaller?

    Thanks in advance,
    Gediminas
     
  2. freedomotic

    freedomotic Member

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    Re: Using HDMI>VGA convertor, how to change minimum resoluti

    Hi
    I solved a similar problem changed the resolution at boot with
    Code:
    setenv setvideomode 'setenv videomode video=mxcfb0:dev=hdmi,1024x768@60,bpp=32'
    You can find more info at this topic viewtopic.php?f=16&t=193&start=30
    Regards
     
  3. Lifeboat_Jim

    Lifeboat_Jim New Member

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    Re: Using HDMI>VGA convertor, how to change minimum resoluti

    Yep, you may need to override a couple of Environmental variables at boot time.

    (Team UDOO are working on display/resolution issues of course, so this is an interim solution).

    Note: HDMI -> whatever adapters can have their own problems.
     
  4. gediminas

    gediminas New Member

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    Re: Using HDMI>VGA convertor, how to change minimum resoluti

    It worked. Thanks!
     
  5. freedomotic

    freedomotic Member

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    Re: Using HDMI>VGA convertor, how to change minimum resoluti

    Great! Can we add [SOLVED] to the topic title?
     

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