Find the answer to your Linux question:
Page 2 of 3 FirstFirst 1 2 3 LastLast
Results 11 to 20 of 29
HorizSync 28.0 - 84.0 VertRefresh 43.0 - 60.0 Are those Refresh rates supported by your Monitor? Check Monitor's Manual for supported rates. Lower range affect Resolutions too. My Monitor supports ...
Enjoy an ad free experience by logging in. Not a member yet? Register.
  1. #11
    Super Moderator devils casper's Avatar
    Join Date
    Jun 2006
    Location
    Chandigarh, India
    Posts
    24,729

    HorizSync 28.0 - 84.0
    VertRefresh 43.0 - 60.0
    Are those Refresh rates supported by your Monitor? Check Monitor's Manual for supported rates. Lower range affect Resolutions too.
    My Monitor supports these values :
    Code:
    HorizSync 30.0 - 70.0
    VertRefresh 50.0 - 160.0
    If I assign lower range like yours, Resolution doesn't go past 1028x800 and supported Refresh rates allow "1680x1050" resolution.
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

  2. #12
    Linux User IsaacKuo's Avatar
    Join Date
    Feb 2005
    Location
    Baton Rouge, LA, USA
    Posts
    405
    It actually doesn't matter what HorizSync and VertRefresh settings are in this xorg.conf. The official nVidia driver will IGNORE those settings, and use whatever it thinks is the highest that will work.

    I found out that if the nVidia driver will outright ignore all HorizSync, VertRefresh, and Modeline settings if resolution name is something like "1280x960" or "1680x1050" or "1234x1234" or "1234x576". In order to get the nVidia driver to respect those settings, you need to rename the Mode to something "funny", like "1280x960ijk" or "MyCustomMode".

    The official nVidia is a weird beast.
    Isaac Kuo, ICQ 29055726 or Yahoo mechdan

  3. #13
    Just Joined!
    Join Date
    Sep 2005
    Posts
    17
    Dear Casper and Isaac,

    with all the fiddling I broke my system. Happily you can install the thing again in half an hour, and I installed Debian Etch from a CD.
    I did not install the extra nVIDIA driver for my graphics card this time.

    I tried it with the standard vesa driver and this gave the low resolution again.
    Changing the HorizSync aan VertRefresh to the settings that my monitor will support ( hor. 30-86kHz, vert. 56-76Hz) made the refresh rate higher and gave me a 1280x1024 resolution at 76Hz.
    This looked a bit better than with 60Hz, but I still couldn't select 1680x1050.
    I added the displaysize, nodcc useedid-false and dpi 90x90 to the xorg.conf file, but no improvement.

    I changed the "vesa" driver to "nv" and that gave me a resolution of 1680x1050 at 60Hz, but the text is blurred and bad like before.

    I will try to make the mode "funny", and come back (I need to restart X and I will loose this connection).

  4. #14
    Just Joined!
    Join Date
    Sep 2005
    Posts
    17
    Back again: I tried making the mode funny : "1680x1050ignore".
    The "nv" driver still didn't budge and didn't go over 1280x1024.
    The "vesa" driver made it all OK on paper: 1680x1050 @60Hz, 474x296mm display and 90x90dpi.
    But on the screen still very blurry.

    The nVIDIA drivers are indeed strange. I have a very nice and fast 7600 card. As said, runs perfect on win-XP, but that's the point isn't it? Would be nice if nVIDIA and X together make sure it just works out of the box.
    Sorry for this frustration, but I have been trying to get this going for 2 months now (with some rest in between to save my nerves).

    Thanks a lot for your help.
    Is there anything more I can try?

  5. #15
    Super Moderator devils casper's Avatar
    Join Date
    Jun 2006
    Location
    Chandigarh, India
    Posts
    24,729
    Quote Originally Posted by IsaacKuo
    It actually doesn't matter what HorizSync and VertRefresh settings are in this xorg.conf. The official nVidia driver will IGNORE those settings, and use whatever it thinks is the highest that will work.
    Those suggestions were for vesa driver only and I know that Nvidia driver ignores those values.

    Have you tried to comment out following lines?
    Code:
    Section "Monitor"
    Identifier "Generic Monitor"
    HorizSync 28.0 - 84.0
    VertRefresh 43.0 - 60.0
    Option "DPMS"
    #DisplaySize 474 296
    EndSection
    
    Section "Device"
    Identifier "Generic Video Card"
    Driver "vesa"
    #Option "NoDDC"
    #Option "USeEdidDPI" "false"
    #Option "DPI" "90 x 90"
    EndSection
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

  6. #16
    Just Joined!
    Join Date
    Sep 2005
    Posts
    17
    Dear Casper,

    thanks for your reply.
    I commented them out, but it doesn't make any difference.

  7. #17
    Linux User IsaacKuo's Avatar
    Join Date
    Feb 2005
    Location
    Baton Rouge, LA, USA
    Posts
    405
    The vesa driver is good for many video cards, but I've never had success with non-standard resolutions with an nVidia card. However, I've been able to get custom resolutions to work using the official nvidia driver.

    In other words, I do not think the vesa driver can give you 1680x1050.

    The official nvidia driver CAN give you any custom modeline, but it's not obvious how to do it.

    My suggestion is:

    1) Install the official nvidia driver (I won't detail how, obviously you already know)

    2) Make modifications to your xorg.conf based on these snippets:
    Code:
    [...]
    Section "Device" 
    [...]
    Driver "nvidia"
    [...]
    Section "Monitor"
    Identifier "Generic Monitor"
    HorizSync 28.0 - 84.0
    VertRefresh 43.0 - 61.0
    Option "DPMS"
    DisplaySize 474 296
    
    ModeLine "1680x1050funny" 147.54 1680 1752 2112 2256 1050 1052 1064 1090 #60Hz
    
    EndSection
    [...]
    Section "Screen"
    Identifier "Default Screen"
    Device "Generic Video Card"
    Monitor "Generic Monitor"
    DefaultDepth 24
    SubSection "Display"
    Depth 1
    Modes "1680x1050funny"
    EndSubSection
    SubSection "Display"
    Depth 4
    Modes "1680x1050funny"
    EndSubSection
    SubSection "Display"
    Depth 8
    Modes "1680x1050funny"
    EndSubSection
    SubSection "Display"
    Depth 15
    Modes "1680x1050funny"
    EndSubSection
    SubSection "Display"
    Depth 16
    Modes "1680x1050funny"
    EndSubSection
    SubSection "Display"
    Depth 24
    Modes "1680x1050funny"
    EndSubSection
    [...]
    Isaac Kuo, ICQ 29055726 or Yahoo mechdan

  8. #18
    Just Joined!
    Join Date
    Sep 2005
    Posts
    17
    Dear Isaac,

    thanks for your perseverance and helpfulness.
    I installed the nvidia driver again (latest version) and edited the /etc/X11/xorg.conf.
    X didn't start up with the message "ModeLine VTotal expected".

    Is there a tiny change that will make X swallow the changes?

  9. #19
    Linux User IsaacKuo's Avatar
    Join Date
    Feb 2005
    Location
    Baton Rouge, LA, USA
    Posts
    405
    I'm guessing that there's a typo in the Modeline. A Modeline is formatted like this:

    ModeLine "name" pixelclock Hresolution Hfloor Hsync Htotal Vresolution Vfloor Vsync Vtotal

    Maybe the Modeline you edited got broken into two lines? From the error, I'm guessing that the last number got cut off.
    Isaac Kuo, ICQ 29055726 or Yahoo mechdan

  10. #20
    Just Joined!
    Join Date
    Sep 2005
    Posts
    17
    Dear Isaac,

    my fault: there was a 1052 next to the 1050 and I overlooked that one while typing in.
    It starts the X server again.
    It gives me 1680x1050 at 50 or 52 Hz, but again with blurred text. It should be 60Hz, but that doesn't come up.
    This reading I got from the KDE control center. The nVidia control center tells me it runs at 1680x1050 / 60Hz, but as you see the KDE control center doesn't agree. I think the KDE control center is right and it runs at lower frequency.

    I filled in the Hsync and Vsync of my screen (which is slightly different: 30-86kHz and 56-76Hz), but that makes no difference either.

    I seems to me that if I can get the thing to run at 60Hz at this resolution it will be better. Can you suggest something?

    Thanks!

Page 2 of 3 FirstFirst 1 2 3 LastLast

Posting Permissions

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