[kde-linux] Re: KDE on high resolution monitor

Felix Miata mrmazda at earthlink.net
Sun Dec 12 12:58:04 UTC 2010

On 2010/12/12 13:05 (GMT+0100) yahoo-pier_andreit composed:

> On 2010/12/08 09:47 (GMT-0500) Felix Miata composed:

>>  configuration of all or part via xorg.conf may
>>  be ignored. It may be necessary to put what _should_ work in xorg.conf into
>>  /etc/X11/xorg.conf.d/*.conf instead. Those using proprietary NVidia drivers
>>  should try the NVidia configuration tool first.

> nvidia configuration tool seems to have anything about dpi :-)

I don't understand this statement. Is DPI mentioned, or not?

> in the man xorg.conf I found this:

> DisplaySize width height
>   This optional entry gives the width and height, in millimetres, of the
> picture area of the monitor. If given this is used to calculate the
> horizontal and vertical pitch (DPI) of the screen.

> do you intend this?

It is how I usually set DPI to a multiple of 12. 
http://fm.no-ip.com/Share/DisplaySize contains the file I copy from to paste 
into new config files lacking those entries. Using a multiple of 12 that is 
close to the actual DPI can produce better font size and quality behavior on 
web pages.

> I found this data on my xorg:
> xorg-x11-server is 7.5_1.8.0-10.3.1 by opensuse repo
> xorg.conf ther isn't
> xorg.conf.d there is in /etc/X11
> the contents are:
> file:///etc/X11/xorg.conf.d/50-monitor.conf

> the content of 50-monitor.conf is:
> Section "Monitor"
>    Identifier "Default Monitor"

>    ## If your monitor doesn't support DDC you may override the
>    ## defaults here
>    #HorizSync 28-85
>    #VertRefresh 50-100

>    ## Add your mode lines here, use e.g the cvt tool

> EndSection

That's the place where putting PreferredMode and DisplaySize should work, but 
NVidia drivers are an exception. You may need similar to as follows:

   Option    "UseEdidDpi"  "FALSE"
   Option    "DPI"  "144 x 144"

> the content of Xorg.0.log is big, I filtered searching dpi, this seems
> related to:
> [    26.018] (II) NVIDIA(0): Validated modes:
> [    26.018] (II) NVIDIA(0):     "nvidia-auto-select"
> [    26.018] (II) NVIDIA(0): Virtual screen size determined to be 1920 x 1080
> [    26.230] (--) NVIDIA(0): DPI set to (143, 144); computed from "UseEdidDpi" X config
> [    26.230] (--) NVIDIA(0):     option
> [    26.230] (==) NVIDIA(0): Enabling 32-bit ARGB GLX visuals.

This seems to indicate you should be good now. Have you reverted all font 
related desktop settings to defaults? What is reported on 
http://fm.no-ip.com/Auth/dpi-screen-window.html opened in Firefox? What is 
reported by 'xrdb -query | grep dpi'? What is reported by 'kcmshell4 
xserver'? Is there still a KDE problem? If so, exactly what?

You might want to try asking on the opensuse-kde and/or opensuse-xorg mailing 
lists for opensuse-specific help. See also:
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

  Team OS/2 ** Reg. Linux User #211409

Felix Miata  ***  http://fm.no-ip.com/

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