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Thread: 2560x1080 resolution unavailable for Ultrawide monitor

  1. #11
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    Elliott Heads, Qld, Aus
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    Default Re: 2560x1080 resolution unavailable for Ultrawide monitor

    OK, tried the other approach....
    Created an /etc/X11/xorg.conf. Slightly different for opensuse vs ubuntu.
    Opensuse: Replace the already created /etc/X11/xorg.conf.d/50-monitor.conf, with the original file (basically an empty file - all text commented out), then edit the /etc/X11/xorg.conf.install and save as xorg.conf. Just added a Monitor section. In my case:
    Code:
    Section "Monitor"
        Identifier "HDMI-1"
        Modeline "2560x1080_60.00"  230.76  2560 2728 3000 3440  1080 1081 1084 1118  -HSync +Vsync
        Option "PreferredMode" "2560x1080_60.00"
    EndSection
    This then gives me the extra resolution to select in Configure Desktop > Display and Monitor, so I can then select the 2560x1080.

    Ubuntu is basically the same, but the basic xorg.conf file is slightly different, and they can't be swapped!

    Thanks for the help.
    i5/8GB
    openSuse Leap15.1 (and Tumbleweed...)
    KDE Plasma 5.12.8
    Linux Counter 130995

  2. #12
    Join Date
    Dec 2008
    Location
    FL, USA
    Posts
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    Default Re: 2560x1080 resolution unavailable for Ultrawide monitor

    I don't see any material "approach" difference. xorg.conf is a file that contains all Sections. xorg.conf.d/ files are each for individual Sections. A material "approach" difference would be letting Xorg calculate modelines from HorizSync and VertRefresh, whether in xorg.conf or a file in xorg.conf.d/. There should be zero difference between openSUSE and Ubuntu in this regard. The main difference between the two is in Ubuntu xorg.conf.d/ typically doesn't exist unless and until created by the local admin, as it's an optional directory that Ubuntu doesn't normally populate by default, while openSUSE has traditionally used it, which might not be happening any more since the implementation of /usr/etc/ in TW.
    Reg. Linux User #211409 *** multibooting since 1992
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  3. #13
    Join Date
    Jun 2008
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    Default Re: 2560x1080 resolution unavailable for Ultrawide monitor

    Quote Originally Posted by hornetster View Post
    OK, tried the other approach....
    Created an /etc/X11/xorg.conf. Slightly different for opensuse vs ubuntu.
    Opensuse: Replace the already created /etc/X11/xorg.conf.d/50-monitor.conf, with the original file (basically an empty file - all text commented out), then edit the /etc/X11/xorg.conf.install and save as xorg.conf. Just added a Monitor section. In my case:
    Code:
    Section "Monitor"
        Identifier "HDMI-1"
        Modeline "2560x1080_60.00"  230.76  2560 2728 3000 3440  1080 1081 1084 1118  -HSync +Vsync
        Option "PreferredMode" "2560x1080_60.00"
    EndSection
    This then gives me the extra resolution to select in Configure Desktop > Display and Monitor, so I can then select the 2560x1080.

    Ubuntu is basically the same, but the basic xorg.conf file is slightly different, and they can't be swapped!

    Thanks for the help.
    Hi
    I would suggest using a lower number and rollback changes to 50-* eg call it 49-LG34WL500.conf then it won't be over-written....
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  4. #14
    Join Date
    Jun 2008
    Location
    Elliott Heads, Qld, Aus
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    Default Re: 2560x1080 resolution unavailable for Ultrawide monitor

    Quote Originally Posted by mrmazda View Post
    I don't see any material "approach" difference. xorg.conf is a file that contains all Sections. xorg.conf.d/ files are each for individual
    All I know is that I configured the xorg.conf file in FerenOS (xorg.conf file generated by booting into a root shell and running X -configure), and this worked after adding the Monitor section...
    Then tried copying this xorg.conf file to my Leap15.1 install, and could only boot to a shell, so went through the above process of editing the xorg.conf.install.
    Thanks.
    i5/8GB
    openSuse Leap15.1 (and Tumbleweed...)
    KDE Plasma 5.12.8
    Linux Counter 130995

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