Results 1 to 6 of 6

Thread: Challenge with screen resolution

  1. #1
    Join Date
    Jan 2010
    Beans
    85

    Challenge with screen resolution

    If this is not the correct forum for this post, my apologies. I think this is a KDE issue for the challenge I am experiencing arises after I enter my login and KDE settings are loaded from my profile.

    The challenge I'm experiencing is that my two displays are rendering at 1960x1120. One is scaling properly to 1920x1080 while the other presents a distorted display area.

    I've included two screen captures https://pasteboard.co/IFEr5rl.png and https://pasteboard.co/IFErJy6.png. They both show the dimensions are 1960x1120. At least, that is what is happening according to the package Spectacle. The one with a red outline on a web page shows what is visible on the screen. The one with no red outline was captured from the screen that is rendering properly and shows the settings as configured for the screen that is not scaling properly.

    How do I fix this? The x.org config file is no longer used by default since Ubuntu 16, I believe. Is this a case where creating an x.org config file will solve the problem? Is there another file I can manually edit to render the desired output. The screen that is not rendering properly is actually a TV made by Insignia that I'm using in VGA mode. The maximum resolution is 1920x1080. The screen that is rendering as desired is an Acer.

    Thank you for taking the time to read this.

  2. #2
    Join Date
    Nov 2008
    Location
    Metro Boston
    Beans
    14,501
    Distro
    Kubuntu Development Release

    Re: Challenge with screen resolution

    Did you set the resolution in System Settings > Displays?
    If you ask for help, do not abandon your request. Please have the courtesy to check for responses and thank the people who helped you.

    Blog · Linode System Administration Guides · Android Apps for Ubuntu Users

  3. #3
    Join Date
    Jan 2010
    Beans
    85

    Re: Challenge with screen resolution

    Yes. As indicated in one of the screenshots I shared the settings under System Settings > Displays. Each of the displays is the highest possible, 1920x1080. I don't understand how the screenshots can be 1960x1120 when that is in excess of the max resolution under System Settings > Displays.

  4. #4
    Join Date
    Jan 2006
    Location
    Sunny Southend-on-Sea
    Beans
    6,883
    Distro
    Kubuntu 18.04 Bionic Beaver

    Re: Challenge with screen resolution

    Quote Originally Posted by dwlamb View Post
    I don't understand how the screenshots can be 1960x1120 when that is in excess of the max resolution under System Settings > Displays.
    That's a 20 pixel margin around each window edge, exactly of the sort that you might get if, for example, window edges had a shadow effect that was being grabbed by whatever is taking the screenshot.
    None but ourselves can free our minds

  5. #5
    Join Date
    Jan 2006
    Location
    Sunny Southend-on-Sea
    Beans
    6,883
    Distro
    Kubuntu 18.04 Bionic Beaver

    Re: Challenge with screen resolution

    Quote Originally Posted by dwlamb View Post
    The screen that is not rendering properly is actually a TV made by Insignia that I'm using in VGA mode.
    TVs are even worse than monitors (many of which are already pretty bad) at providing accurate EDID responses. VGA adaptors generally don't include the connections to allow EDID to pass through.

    EDID is how resolutions are automatically set: the display says the resolutions it can do, and the computer sets the resolution to one of those. Without that information, the computer has to guess. It is often not a good guess.
    None but ourselves can free our minds

  6. #6
    Join Date
    Nov 2008
    Location
    Metro Boston
    Beans
    14,501
    Distro
    Kubuntu Development Release

    Re: Challenge with screen resolution

    If you connect to the TV with HDMI, do you still have this problem?
    If you ask for help, do not abandon your request. Please have the courtesy to check for responses and thank the people who helped you.

    Blog · Linode System Administration Guides · Android Apps for Ubuntu Users

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •