[GRLUG] Some pixel stuff.

[Bob Kline]

I checked out the card connector
and the cable itself.  It matches the
fourth pattern from the top - DVI-D.
Dual connector.

The output from the card seems to work,
since I've used it on other monitors.  I
guess the next thing to do is switch the
DVI input to the monitor and see if anything
happens.

   -- Bob


On Sat, Nov 24, 2012 at 4:50 PM, Ben Rousch <brousch at gmail.com> wrote:

> I experienced a similar problem when using a single link DVI cable with a
> high resolution monitor like yours. As Jeff mentioned, you need to make
> sure your card and cables are all dual link DVI. This does not mean two DVI
> ports. In the picture on the left in this article, it means all of the pins
> exist as in the 2nd or 4th connector types.
> http://en.wikipedia.org/wiki/Digital_Visual_Interface#Dual-link_DVI
>
> On Sat, Nov 24, 2012 at 4:27 PM, Bob Kline <bob.kline at gmail.com> wrote:
>
>>
>>
>> On Sat, Nov 24, 2012 at 3:57 PM, Adam Tauno Williams <
>> awilliam at whitemice.org> wrote:
>>
>>> On Sat, 2012-11-24 at 15:03 -0500, Bob Kline wrote:
>>> > On Sat, Nov 24, 2012 at 2:43 PM, Adam Tauno Williams
>>> > <awilliam at whitemice.org> wrote:
>>> > On Sat, 2012-11-24 at 13:24 -0500, Bob Kline wrote:
>>> > > Moving along, my desktop, an HP
>>> > > Pavilion a6750f, contains an ATI
>>> > > Radeon HD 3200 display card.  On
>>> > > a monitor capable of 2560x1600, I'm
>>> > > currently using the VGA output of the
>>> > > card to get 2048 x 1280.  Not chopped
>>>
>>>
>>> The **** "currently using the VGA output of the card" **** might be
>>> relevant.  If you connect the display to the GPU via DVI does it make a
>>> difference?
>>>
>>
>> I have both video card outputs attached
>> to the monitor, and simply switch between
>> them using the monitor.
>>
>> VGA works fine at the maximum 2048 x 1280 -
>> so says the manufacturer.  It's the DVI connection
>> that does not seem to hack it.
>>
>>
>>>
>>> > >You want your maximum accelerated display size to be larger than the
>>> > >one you are using.
>>>
>>> > Where does that get set?  The maximum
>>> > size shown in the "Size and Orientation"
>>> > window in "System Settings" is 2560 x 1600.
>>>
>>> That is a feature of the GPU (video card).  But it can also be part of
>>> how you are connecting the GPU to the display.  Display resolutions you
>>> are talking about possibly may be DVI only [otherwise you are talking
>>> about WQXGA and higher - which I've been told by others can be dicey,
>>> that is really at the edge of the hardware.  I've never dealt with them
>>> myself].
>>>
>>>
>>> OK, the monitor claims the resolution
>> on the DVI connection is much lower
>> than the VGA connection.  Again,
>> "960x1200."  The numbers make no
>> obvious sense.  I can twiddle the
>> display settings until the display looks
>> OK, and the display size will be in that
>> range.
>>
>>    -- Bob
>>
>>
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>
>
>
> --
>  Ben Rousch
>    brousch at gmail.com
>    http://clusterbleep.net/
>
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