Mailinglist Archive: opensuse (1002 mails)

["David C. Rankin" <drankinatty@xxxxxxxxxxxxxxxxxx>]

On 07/20/2011 01:01 PM, Stan Goodman wrote:
> On 07/20/2011 08:01 PM, Felix Miata wrote:
> > On 2011/07/20 19:46 (GMT+0300) Stan Goodman composed:
> >
> > > So, I think, it is necessary only to change the refresh rate. But
> > > Personal Settings> Display and Monitor offers onlly 60Hz (or Auto,
> > > which doesn't help). It is very hard to believe that this acclaimed (by
> > > the manufacturer) driver and hardware can support only one refresh rate
> > > (which doesn't seem demandingly fast), and that one is possible only for
> >
> > 60 is standard for most LCDs. Anything other than 60 on a LCD is usually
> > pointless, even if supported, possibly provided mainly for cards that don't
> > support the native resolution at 60, but do at 72 or 75 or whatever.
> >
> > > very modest resolutions (the greatest being 1024x768). There really has
> > > to be more to this -- or the question of a standalone graphics care
> > > arises again.
> >
> > What is your display type (CRT vs LCD/LED vs other)?
> > What is the native resolution of your display?
> > If you don't know the above, what make and model is it?
> > What resolution were you using with the old motherboard (if you remember)?
> > What resolution do you wish (if you know)?
> It's an LG Flatron LCD monitor, the model number of which slips my mind and is
> written on the back in letters too small to read, even when I put on my glasses.
>
> With the previous board, i used the display with 1280x1024. My fallible memory
> of the refresh rate is 72, but it could well have been 60 or something else. I
> don't attach much importance to the refresh rate (all the usual rates are well
> above the flicker threshold), but I would like a higher resolution, as I had
> with the now defunct board.

  LCD is almost always 60Hz. On the resolution problem, make sure you are not 
somehow invoking the vesafb (frame buffer) driver somewhere in the process 
before the driver you want to load is loaded (I'm still guessing your are 
playing with the "Intel HD Integrated Graphics"? -- or I might have missed the 
card switch somewhere in this thread)

  Regardless, I have had problems in the past with ATI drivers being 
installed, but the framebuffer driver loading when X loads. This was primarily 
an xorg.conf problem in the days before /etc/X11/xorg.conf.d/ setup. Check the 
files in this directory. The driver load section is usually in:

/etc/X11/xorg.conf.d/50-device.conf  (or 50-device.conf.something)

There you will find the familiar old:

Section "Module"
  Disable "dri"
  Disable "dri2"
EndSection

Section "Device"
  Identifier "Default Device"

  Driver "radeonhd"
  Option "AccelMethod" "xaa"
EndSection

(of course your options and Driver will vary)

  Just check to make sure you are loading the Driver you think you are and 
that everything else makes sense. You can simply make backups of these files 
and play with the settings to try different drivers (restarting X in between 
changes)

  Xorg does a good job of choosing reasonable defaults now, but sometimes it 
still takes a bit of manual intervention.

--
David C. Rankin, J.D.,P.E.
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