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Re: ViewSonic Widescreen and resolution settings:SOLVED!



I managed to work around the problem.  In my xorg.conf file were
present the following resolutions:
"1680x1050" "1600x1200" "1400x1050" and so on.  I removed the
"1600x1200" and now everything is displayed properly.  The clue was
when the xorg log file stated that my virtual screen size was
1680x1200 and the only "1200" I could find was in this spot.  Anyway,
all is good now though there appears to be a bug somewhere in xorg.

David Bellows

On 11/17/06, Dave Bellows <davebellows@gmail.com> wrote:
Yet another update.  I manually set the display size (according to the
xorg wiki multiplying the resolution by the dot pitch) which did not
help.  And then I looked at the log and saw this ominous looking line:

Virtual Screen Size determined to be 1680x1200

It should be 1680x1050.  Why is the virtual screen being set to a size
larger than the actual resolution?

On 11/17/06, Dave Bellows <davebellows@gmail.com> wrote:
> Another update.  I am now running Kubuntu off a live CD and it is
> displaying everything correctly.  A quick perusal of the xorg.conf
> file didn't reveal any different settings.  Perhaps the version of
> xorg?  I will keep investigating and I appreciate any help or
> suggestions.
>
> David Bellows
>
> On 11/17/06, Dave Bellows <davebellows@gmail.com> wrote:
> > On 11/17/06, Anton Piatek <anton@piatek.co.uk> wrote:
> > > Dave Bellows wrote:
> > > > Update.  Of course I can't run 1600x1000 instead the monitor went to
> > > > the next resolution on the list which was 1600x1200.  I was then able
> > > > to shrink the horizontal size and reposition the screen to make it
> > > > fit.  There are now thin black bars along either side of the screen
> > > > but there doesn't seem to be as much distortion.  Still, I would like
> > > > to get this working better.
> >
> > > >
> > > >
> > > > On 11/16/06, Dave Bellows <davebellows@gmail.com> wrote:
> > > >> Hello all,
> > > >>
> > > >> I just got a new ViewSonic VG2230 widescreen LCD monitor for my Debian
> > > >> Testing box.  After I installed it I ran "dpkg-reconfigure -phigh
> > > >> xserver-xorg".  It seemingly correctly configured xorg.conf for a
> > > >> resolution of 1680x1050 as recommended by the booklet that came with
> > > >> the monitor.  However, when I started up X the vertical is off.
> > > >> There's about 2 inches of extra screen space at the top so that when I
> > > >> move the mouse cursor up to the top of the screen the whole screen
> > > >> shifts and I lose my bottom taskbar (KDE).
> > > >>
> > > >> So I manually edited the conf file and changed it to 1600x1000
> > > >> (keeping the same ratio).  This appears to have worked (no more extra
> > > >> space).  Because the monitor is such a big change from what I'm used
> > > >> to I can't tell entirely if the shapes of the letters are distorted at
> > > >> all (at 1680 x 1000 it was obvious) but they appear fine.  Is it fine
> > > >> to leave it at this?  Should it be able to do 1680x1050?  Is there
> > > >> some extra configuration I'm missing?
> > > >>
> > > >> Also, the screen is huge.  I'd never really notice what letters looked
> > > >> like before.  There's a certain fuzziness around each of the letters
> > > >> on the screen that I think is related to anti-aliasing perhaps.  It's
> > > >> fairly noticeable though I imagine I could get used to it.  Again, is
> > > >> there a setting somewhere that would improve the look?
> > > >>
> > > >> Thanks,
> > > >> David Bellows
> > > >>
> > > >
> > > >
> > >
> > > Make sure you have the vsync and hsync values correct for your monitor
> > > (see the monitor manual) otherwise you will get this.
> > >
> > > Subpixel rendering should not affect this, but it can improve clarity as
> > > the xserver knows more about the screen so can change the way pixels are
> > > lit up to look better.
> > >
> > > Anton
> > >
> > Thanks Anton,
> >
> > I checked with the manual and changed what xorg.conf had to the values
> > in the manual (Horiz: 30 - 82; Vert: 50-75) but everything looks the
> > same (running at the recommended 1680x1050) with the extra space on
> > top.  The manual also states that I should be running at 60 Hz but the
> > monitor reports that my video card is running the Horizontal at 65 KHz
> > and the Vertical at 60Hz, is this something that can be changed in
> > xorg.conf or am I mixing information there?
> >
> > My Nvidia card is fairly old, could it be a video card issue (looking
> > for an excuse to buy a new one anyway).  Speaking of, using the nv
> > driver produces the same result as the binary driver.
> >
> > David Bellows
> >
>




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