The resolutions for each display need to be set separately in Windows. I'm
not sure about what Dualview is, not being an NVidia user, but it sounds
like you haven't set the TV and monitor to their respective native
resolutions in the Windows' Display Settings. That's where extended desktop
mode is typically enabled as well. If Dualview is some sort of NVidia clone
mode you will get anomalies like this when the two displays are not exactly
the same native resolution. In extended desktop mode the wallpaper will be
at the resolution set for the primary display. If the secondary display is
at a lower resolution than the primary the desktop image will be full screen
but cropped around the edges to fit the display size. If the secondary
display is higher resolution than the primary the desktop image can be
smaller than the screen size, unless the video card or the TV itself
stretches the image to fill the screen. Image quality often suffers when the
image is stretched to fit or is full screen at any resolution other than the
native resolution.
Set the video card to output the specified native resolutions for the
Samsung and your monitor. I've seen many TVs advertising HDTV specs (i.e.
720P, 1080i) yet the actual resolution of the screen differs from that
standard. Instead of 1280x720 pixels (720P) the TV 's actual resolution may
be somewhat higher. 1366(H) x 768(V) progressive scan @ 60Hz is a common
native resolution for 720P LCD TVs. Depending on the video signal input
source the output resolution from the computer might be limited to something
lower, like 1280 x 768 over a VGA connector.
Refresh rate isn't a factor in the image quality or desktop size. If you
don't have display driver support for each monitor (i.e.. relying on MS
generic drivers) it is possible to set incompatible refresh rates that can
damage the monitor. TV is typically 60Hz or less, 30hz interlaced, lower in
PAL regions. As an LCD display the Samsung might be compatible with some
higher refresh rates at certain resolutions but it wouldn't make a
difference in this situation anyway.
"dlrisley" <dlrisley@discussions.microsoft.com> wrote in message
news:2F80C402-3418-4EE1-A760-3BB96586915F@microsoft.com...
>I have a Samsung LCD 720P HDTV 32" that I have been using as a secondary
> monitor. I just bought a new computer (HP Elite M9060N) with vista on it
> and
> a Geforce 8500GTS NVIDIA card (factory installed). When I try to extend
> my
> desktop onto my tv (using Dualview) it doesn't fill the entire screen. It
> leaves a black ring around the outside. I've tried adjusting the
> resolution,
> but it doesn't work. In addition to the ring, the resolution on the tv
> looks
> horrible. I have the refresh rate maxed out and tried flip flopping which
> monitor is my primary but just can't seem to get it to work. I'm also
> using
> a Samsung LCD 20" monitor and connecting my extra monitor with an HDMI
> cable. I would appreciate any help...thanks
>
>
> ----------------
> This post is a suggestion for Microsoft, and Microsoft responds to the
> suggestions with the most votes. To vote for this suggestion, click the "I
> Agree" button in the message pane. If you do not see the button, follow
> this
> link to open the suggestion in the Microsoft Web-based Newsreader and then
> click "I Agree" in the message pane.
>
> http://windowshelp.microsoft.com/com...allation_setup