Does anyone know if dual-link monitors eg. 4-megapixel monitors (such
as the Apple, Dell, or Samsung 30-inch monitors) work under Fedora-9?

Does the monitor work for the boot screens, or only after Xorg is
running?

-wolfgang
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Wolfgang S. Rupprecht wrote:
> Does anyone know if dual-link monitors eg. 4-megapixel monitors (such
> as the Apple, Dell, or Samsung 30-inch monitors) work under Fedora-9?
>
> Does the monitor work for the boot screens, or only after Xorg is
> running?

Works just fine. With text and graphic. Even dual dual-link monitor
handling works if you have an appropriate card. All with the free
drivers (initially nvidia, now ATI, in protest of nvidia's stance).

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➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA �
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Ulrich Drepper <drepper@redhat.com> writes:
> Wolfgang S. Rupprecht wrote:
>> Does anyone know if dual-link monitors eg. 4-megapixel monitors (such
>> as the Apple, Dell, or Samsung 30-inch monitors) work under Fedora-9?
>>
>> Does the monitor work for the boot screens, or only after Xorg is
>> running?
>
> Works just fine. With text and graphic. Even dual dual-link monitor
> handling works if you have an appropriate card. All with the free
> drivers (initially nvidia, now ATI, in protest of nvidia's stance).

Neat! Thanks! (As he runs off to do some serious damage to his bank
account.)

-wolfgang
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On Fri, 2008-08-08 at 10:18 -0700, Wolfgang S. Rupprecht wrote:
> Ulrich Drepper <drepper@redhat.com> writes:
> > Wolfgang S. Rupprecht wrote:
> >> Does anyone know if dual-link monitors eg. 4-megapixel monitors (such
> >> as the Apple, Dell, or Samsung 30-inch monitors) work under Fedora-9?
> >>
> >> Does the monitor work for the boot screens, or only after Xorg is
> >> running?
> >
> > Works just fine. With text and graphic. Even dual dual-link monitor
> > handling works if you have an appropriate card. All with the free
> > drivers (initially nvidia, now ATI, in protest of nvidia's stance).

Do I understand that this will work with up to 4 30" monitors? WOW. AS
someone who is loosing vision, this is great news.

Any recommendations on video cards?

>
> Neat! Thanks! (As he runs off to do some serious damage to his bank
> account.)
>
Seconding that.

Regards,
Les H

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Les wrote:
> Do I understand that this will work with up to 4 30" monitors? WOW. AS
> someone who is loosing vision, this is great news.

No. 30" screens require dual-link connections. Dual dual-link means
two 30" screens. You probably can drive four screens with two such cards.

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➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA �
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Les <hlhowell@pacbell.net> writes:
> Do I understand that this will work with up to 4 30" monitors? WOW. AS
> someone who is loosing vision, this is great news.

One card will, at most, have 2 DVI connectors (each either single-link
or dual-link). Dual-link just means that it has two sets of
data-wires for doubling the bandwidth. 4-Megapixel monitors need to
double up the data links in order to move all that data in the 1/60th
of a second a reasonable refresh takes.

> Any recommendations on video cards?

I don't like noisy miniature fans on my cards, so I opted for a slower
pcie card with a "mobile" Radeon HD 3450 chipset on it. I got the MSI
R3450-TD256H version of it, although quite a few manufacturers make
cards based on this ATI chip. These cards run around $50 mail order.

http://www.msicomputer.com/product/p_spec.asp?model=R3450-TD256H&class=vga

The Radeon 3450's have gotten quite a bit of press lately. It looked
legit enough so I decided to give it a try.

I should have my MSI card on Monday so I'll be able to report back how
F9's Xorg gets along with it. If it works, I'll pick up the 30"
Samsung 305T to go along with it. At 30" and twice the pixel count I
now have, I don't think I'll lose too much sleep over not having a
dual, dual-link setup. Normally I'm all for overkill, but getting two
of those monitors would be over-overkill. ;-)

One thing to watch out for is some manufacturers run the Radeon 3450
graphics chip harder than they should. Companies like Saphire have
plenty of Google hits claiming that their Radeon 3450 card runs very
hot and eventually crashes the system. MSI had only folks saying
their Radeon 3450 card ran cool to the touch. That is really what
swayed me away from the dual-dvi Saphire card, even though having two
dvi's would have been nice.

-wolfgang
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"Wolfgang S. Rupprecht" <wolfgang.rupprecht+gnus200808@gmail.com>
writes:
> I should have my MSI card on Monday so I'll be able to report back how
> F9's Xorg gets along with it.

Just a quick note on the MSI R3450-TD256H framebuffer card; it does
work under f9 and the stock Xorg. It isn't accelerated though and the
XV video extension doesn't work yet. This means that the card is
quite a bit slower than my old lowly ATI Radeon 9200, (200 fps instead
of 1200 fps in glxgears) and that videos can't be scaled to fill the
full screen. Videos only play at their native size, with the window
having a very generous black border if you try to increase the size.
Still the card is a fanless dual-link dvi card.

(I know the Xorg folks are busy writing the code for the 3d and XV
stuff. If the reported performance under MS is any indication, this
card should be quite a bit faster once the Xorg drivers have caught
up.)

-wolfgang
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You may need to config 6to4 to see the above pages.

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