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Graphic Card for Ubuntu 20.04 LTS...

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  • Graphic Card for Ubuntu 20.04 LTS...

    Hello, currently I have this monitor: https://www.displayspecifications.com/en/model/02e9c18

    And also this graphics card: ATI Radeon HD6850

    When I was using Windows 8.1 I had a resolution of 2560x1080 and had no problems. Now I have moved to Ubuntu 20.04 LTS but I can't set that resolution, I have tried everything and nothing, the maximum I can set is 1920x1080.

    I have been looking at not very expensive graphic cards and I have seen these 2, I don't know which one will be more recommendable:
    • ASUS GeForce GT 1030 2GB GDDR5
    • ASUS RX550 4G EVO


    What I want is to be able to take full advantage of the monitor and not have problems in the future with the resolution.


    Thanks.

  • #2
    Well it's time to play with the xrandr command (in older times you put this in xorg.conf)
    So, you type "xrandr" and it outputs some gibberish. In this you find out which output is connected, e.g. HDMI-1 or DP-1 (or DP-0, HDMI-0 ...)
    Look at :
    man xrandr
    man cvt
    if you want to know what needs be done.
    But well, you do cvt 2560 1080 60, the output is
    # 2560x1080 59.98 Hz (CVT) hsync: 67.17 kHz; pclk: 230.00 MHz
    Modeline "2560x1080_60.00" 230.00 2560 2720 2992 3424 1080 1083 1093 1120 -hsync +vsync
    You need to paste the right amount of gibberish in the right command.

    So, put this in a text file then chmod +x the file :
    #!/bin/bash
    xrandr --newmode "2560x1080_60.00" 230.00 2560 2720 2992 3424 1080 1083 1093 1120 -hsync +vsync
    xrandr --addmode HDMI-1 "2560x1080_60.00"
    The RX550 would be a nice one, but perhaps you would end up doing this anyway. So, it doesn't hurt to use the current hardware.

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    • #3
      Have you tried running live distros? Had pre-RX series 6000 Radeon and have to say it had by far the nicest 2D picture I've seen. Crisp, clear and worked fine on my 1440p screen.

      At the moment it's bad time for buying GPU's, prices are insanely inflated.. If I was you, I'd try to get current Radeon work properly before paying obscene amounts to get new GPU.

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