DVI-D on SAM440

As my SAM440 is now on it's way, I need to buy a new monitor to hook up to it... the one I've found only has a DVI-D connector.

Would this be suitable for connecting up to the SAM440, which I believe has a DVI-I? I've read they are compatible in some cases if the correct signals are sent.

Also, the max screen res would be 1920x1080 but the SAM, via DVI, would only do 1600x1200 maximum resolution. Are there any consequences of scaling resolutions etc? I thought LED monitors were only supposed to run at a certain resolution or things would look a tad blurry?

Any help would be appreciated!

Daniel

Well, yes, it will look a little blurry since LCD screens only have one "native" resolution. (LED screens are just LCDs with LED backlighting instead of fluorescent). DVI-I is basically DVI-D and DVI-A combined, and so is 100% compatible with DVI-D, provided the DVI portion of the output is enabled.

I'm not 100% sure, but I'd imagine the screenmode could be tweaked to fit - 1920x1080 isn't very many more pixels than 1600x1200 so it shouldn't be that much of an extra load on the graphics system. But I don't have one so don't quote me on it! :)

I just bought a 23" led monitor, native mode is 1920x1080. I'm using 1920x1080x16 on a micro, but it will go down to other resolutions, 1440x900 being the closest to what you would need.

I would buy a gfx card, if I were you, maybe an x1950 or a 9250. Just check to make sure one will work, if it does, you could use 1920x1080.

Slash
Like sundown I run a 24" (Samsung) on my Micro (Radeon 7000)
at 1920 x 1080, admittedly via VGA, I run ImageFX and Candy Factory pro at 1280 x 960 with no problems (well they look OK to me, ie not blurred)
So if you can get yourself a ATI 9250 you shouldn't have any problems.

What type of Monitor are you hoping to get?





My Samsung is a Syncmaster P2450 with VGA/DVI and HDMI inputs

You may need to add +RB to the mode spec. I used to have my 440ep connected to our flat screen tv (using a DVI to HDMI adapter) with a screen mode of 1920×1080@50+RB, and that worked fine. But not without the +RB.

Best regards,

Niels

Either +RB or -RB. You may want to try both if the other doesn't work (monitors goes off and on again).

@Slash:

I guess it's a Sam 440ep-Flex (with PCI graphics card)? Your new graphics card is sure to support 1920x1080.

If on the other hand you are getting an older Sam 440ep with built-in Radeon M9 graphics, it might be working a bit hard trying to keep up with 1920x1080. You may find you can do better by using a lower resolution.

In both cases, if you open Prefs/Screenmode and select the Monitors tab, you can select the "Detect settings automatically" and "All supported modes" buttons, then, after a reboot, you'll see all the modes that the monitor can display. You can then choose something less taxing.

Don't make my mistake and use a DVI-VGA adaptor between the cable and the computer. All the adaptors that I've tried don't have the DDC conductors wired through, so the automatic detection can't work.

@tonyw

That's weird, I've used the cheapest - £1.12 (1.70 AUD) inc delivery - dvi adaptors I could find and they have all worked fine.

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I use a 24" LCD monitor (aspect ratio 16:10) whose native resolution is 1920x1200. This is definitely too much for the M9, even with +RB or -RB. The next manufacturer-recommended lower resolution, 1680x1050, displays OK. The M9 can go even higher, doing 1600x1200 just fine, but I guess 1920x1080 will be out of its limits.

Just an update for anyone who's interested.

First, thanks for all of the comments and recommendations. I've finally got my SAM440EP up and running in it's brand new, and very tiny, Jetway JC203... silent and cool!

I opted for a 20" HP monitor with DVI and it works very well at 1600x900x32. That's plenty enough for me.

Just migrating all of my stuff from the A1, well the development data anyway, so I'll be able to resume my Amiga programming projects.

What to do though...

@slash

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Yeah, silent, tiny and cool... the selling point of the Sam, for me at least.

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This is even cooler than the case!

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It's not often than an A1 user move to SAM667EP (less CPU power)

BTW, what are your programming projects on the Amiga ?

bye