[israces]

Don't know if this belongs here or in Peripherials, but since it's most likely a PB issue, I thought I'd post here first.

I have a 15" PB 1.25 hooked up to a Samsung 19" SyncMaster 940MW monitor (widescreen) with a DVI-D dual link cable. The PB's resolution is set to 1280 x 854 (millions) and the Samsung is set to 1360 x 768 (millions @ 60 Hz). Display is set to whatever the opposite of mirroring is called. Everything is fine.

But when I try to kick the Samsung up to 1440 x 900, the image on the screen on the Samsung shakes/stutters back and forth horizontally. Kicking the number of colors down on both, and/or kicking the resolution down on the PB, has no effect on the shaking. It's just when the Samsung is set to 1440 x 900. According to everything I've read, the PB should be able to drive this monitor just fine at that resolution.

Anyone have any ideas as to what I can try to do to get this to work?

UPDATE: It works perfectly with a 12" PB 1.33 with a DVI connection at all resolutions and it works with the 15" PB 1.25 using a VGA connection at all resolutions. So my guess is that something is wrong with the DVI on the 15" PB, but why at just the 1440x 900 resolution? Help? Guesses?

[MacPowerbookG4]

Hi israces:

It just so happens that I'm sitting here on my Powerbook G4 (12-inch display), trying to fix my new Envision 19" widescreen LCD. As I was setting it up this morning, I noticed that at the LCD's native resolution (1440 x 900) the image quality was distored by some odd-looking horizontal lines; in periodic intervals, they continually move across the screen and make the monitor very difficult to use.

I'm not sure if we are experiencing the same problem. If, however, you've made any progress on your situation--or, even better, have been able to fix the problem--please let me know.

Thanks.