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Thread: Wide LCD monitors: does anybody understand the graphic chaos

  1. #1

    Unhappy Wide LCD monitors: does anybody understand the graphic chaos

    Using a Samsung 940NW (1440x900) under OpenSUSE 11.0, I switched today to an Asus MW221U (or at least tried to) with a resolution of 1680x1050. The chaos I had encountered in setting the 940W plus the new one I am still in makes me wonder if someone has the answer to the following questions :

    1. When configuring a LCD monitor with a NVidia card with its proprietary drivers, is one supposed to use

    1.1 YaST, then choice : hardware, then screen & video card

    OR

    1.2 /usr/sbin/sax2 from root

    OR

    1.3 /usr/bin/nvidia-settings ?

    I just don't understand should be used and why, neither do I know if these programs - which normally modify settings - communicate the information about these changes to one another so they will not interfere.

    2. When choosing 1680x1050@60Hz in YaST, a test screen is displayed claiming to be 1600x1024, which is not what was asked. Then again, if that screeen is selected, the monitor OSD informs us that the real size setr is neither 1680x1050 *nor* 1600x1024, but 1240x1024.

    Well, I guess that if anydody understands what is going on and can explain it, it will be a great help. Presently, the least I can say is that I am really puzzled :-o

  2. #2

    Default Re: Wide LCD monitors: does anybody understand the graphic c

    In terminal as su
    Run nvidia-settings and save your new configuration

  3. #3

    Default Re: Wide LCD monitors: does anybody understand the graphic c

    Thank you. I am presently on a konsole trying to do that. Unfortunately nvidia-settings does allow to choose the resolution I am supposed to use for my screen, which is 1680x1050. I am therefore going to try 1400x1050, which as least specifies the right vertical resolution.

    (saving this post before I try to restart the X server, juste in case ;-) )

  4. #4
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    Default Re: Wide LCD monitors: does anybody understand the graphic c

    Quote Originally Posted by Paganel75 View Post
    Using a Samsung 940NW (1440x900) under OpenSUSE 11.0, I switched today to an Asus MW221U (or at least tried to) with a resolution of 1680x1050. The chaos I had encountered in setting the 940W plus the new one I am still in makes me wonder if someone has the answer to the following questions :

    1. When configuring a LCD monitor with a NVidia card with its proprietary drivers, is one supposed to use

    1.1 YaST, then choice : hardware, then screen & video card

    OR

    1.2 /usr/sbin/sax2 from root

    OR

    1.3 /usr/bin/nvidia-settings ?

    I just don't understand should be used and why, neither do I know if these programs - which normally modify settings - communicate the information about these changes to one another so they will not interfere.

    2. When choosing 1680x1050@60Hz in YaST, a test screen is displayed claiming to be 1600x1024, which is not what was asked. Then again, if that screeen is selected, the monitor OSD informs us that the real size setr is neither 1680x1050 *nor* 1600x1024, but 1240x1024.

    Well, I guess that if anydody understands what is going on and can explain it, it will be a great help. Presently, the least I can say is that I am really puzzled :-o
    With whatever you have plugged in and turned on, boot & at the bootsplash type "3" which will boot you to runlevel 3 = command line.

    login as root
    P/W
    now type"
    "sax2 -r"
    (if for some reason that doesn't work, try (sax2 -r -m 0=nvidia).
    Sax2 will detect your card & monitors (if they are plug&play) and present a recommended display setup.
    I always "Change Configuration" and have a look at the setup & usually change my resolution.
    look at all the tabs > including monitor tabs > then look at those tabs at the top > there you can change dimensions, screen size, x&y values, etc.

    When you have it like you think you want:
    "Test" > Always "Test"
    When it's like you want:
    "save"
    "reboot"

    Once you are up, you can fine tweak with the Nvidia Control Panel.
    Desktop Asus X-99 Viper. uefi & secure Boot, Win10, Leap 15.1; Laptop: ASUS GL752VW Optimus, uefi+Secure Boot, Win10, Leap 15.1 & T-weed and IMac

  5. #5

    Default Re: Wide LCD monitors: does anybody understand the graphic c

    OK. I did the first thing to begin with : nvidia-settings, then resolution 1400x1050 (as 1680x1050 is not proposed in the pulldown menu), then save, then kill the X server and restart is with startx (I guess I could have used init 3 as well, though I would not swear it)

    The resolution according to the OSD, once the X server is restarted, is still 1280x1024, which my eyes confirm as far as I can perceive it

    I shall now try the sax2 -r thing.

  6. #6

    Default Re: Wide LCD monitors: does anybody understand the graphic c

    sax2 -r gives me a screen rather similar to the one I had with YaST. However, VESA 1024x768 comes preselected as Monitor as well as Properties. Changing that to LCD 1680x1050@60Hz in both.

    (saving again juste in case...)

    Absolutely no change : The test screen announces a resolution of 1680x1024 (while 1680x1050 was asked), and the OSD displays 1280x1024 (however, I did not restart the X server yet...)

  7. #7

    Default Re: Wide LCD monitors: does anybody understand the graphic c

    After restarting the X server, the screen resolution as indicated by the OSD seems to be still 1280x1024

  8. #8

    Red face Re: Wide LCD monitors: does anybody understand the graphic c

    Now trying with sax2 -r -m 0=nvidia

    Selecting LCD 1680x1050@60 Hz in Monitor, 1680x1050 in Properties.

    Testing...

    Routine ! The test screen announces once again 1680x1024.

    And, without surprise, the OSD displays that the real resolution is in fact 1280x1024, giving like an impression of dj vu ;-)

    Well... perhaps it is morally wrong to use wide LCD screens in Linux

  9. #9

    Default Re: Wide LCD monitors: does anybody understand the graphic c

    Quote Originally Posted by Paganel75 View Post
    Now trying with sax2 -r -m 0=nvidia

    Selecting LCD 1680x1050@60 Hz in Monitor, 1680x1050 in Properties.

    Testing...

    Routine ! The test screen announces once again 1680x1024.

    And, without surprise, the OSD displays that the real resolution is in fact 1280x1024, giving like an impression of dj vu ;-)

    Well... perhaps it is morally wrong to use wide LCD screens in Linux
    I am using a viewsonic 22" monitor with 1680x1050 and works fine with suse 11.0. with nvidia. So it is not morally wrong I guess I only use nvidia-settings and save it and choose not to merge with existing configuration in xorg. I am not using yast2/sax2 because it can't recognize my nvidia's correct resolution.

    Hope this helps a bit

  10. #10

    Question Re: Wide LCD monitors: does anybody understand the graphic c

    OK< I tried nvidiq6settings qgqinm choosing not to ;erge ;y xcorg<conf qnd restqrted the X server<

    Zhile I chose !$))x!)%)m the OSD \still\ indicqtes !#*)x!)@$ once the X server is restqrted< The only difference zith the previous stqte is thqt it see;s ;y keyboqrd is noz in AZERTY tqther thqn in QWERTYm I just do not knoz zhy

    :y xorg.conf file is noz the follozing one .

    fda@e249:/etc/X11> cat xorg.conf
    # nvidia-settings: X configuration file generated by nvidia-settings
    # nvidia-settings: version 1.0 (buildmeister@builder63) Mon May 19 00:34:28 PDT 2008

    Section "ServerLayout"
    Identifier "Layout0"
    Screen 0 "Screen0" 0 0
    InputDevice "Keyboard0" "CoreKeyboard"
    InputDevice "Mouse0" "CorePointer"
    EndSection

    Section "Files"
    RgbPath "/usr/lib/X11/rgb"
    EndSection

    Section "Module"
    Load "dbe"
    Load "extmod"
    Load "type1"
    Load "freetype"
    Load "glx"
    EndSection

    Section "ServerFlags"
    Option "Xinerama" "0"
    EndSection

    Section "InputDevice"
    # generated from default
    Identifier "Mouse0"
    Driver "mouse"
    Option "Protocol" "auto"
    Option "Device" "/dev/psaux"
    Option "Emulate3Buttons" "no"
    Option "ZAxisMapping" "4 5"
    EndSection

    Section "InputDevice"
    # generated from default
    Identifier "Keyboard0"
    Driver "kbd"
    EndSection

    Section "Monitor"
    # HorizSync source: xconfig, VertRefresh source: xconfig
    Identifier "Monitor0"
    VendorName "Unknown"
    ModelName "CRT-0"
    HorizSync 30.0 - 66.0
    VertRefresh 50.0 - 61.0
    Option "DPMS"
    EndSection

    Section "Device"
    Identifier "Videocard0"
    Driver "nvidia"
    VendorName "NVIDIA Corporation"
    BoardName "GeForce 7600 GS"
    EndSection

    Section "Screen"
    Identifier "Screen0"
    Device "Videocard0"
    Monitor "Monitor0"
    DefaultDepth 24
    Option "TwinView" "0"
    Option "TwinViewXineramaInfoOrder" "CRT-0"
    Option "metamodes" "1400x1050 +0+0; 1280x1024 +0+0; 1280x960 +0+0; 1024x768 +0+0; 800x600 +0+0; 640x480 +0+0"
    SubSection "Display"
    Depth 24
    EndSubSection
    EndSection

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