I had a heck of a time today configuring my new Viewsonic E90B monitor in SuSE 9.1 (x86-64) with a Geforce FX 5700 video card. I entered all the various specs for the monitor to the letter in Sax2, but the display jitters at anything over 1024x768 resolution. I was also wondering whether anyone out there has the problem of a strange horizontal, south-to-north "wave" effect on their text consoles even totally out of X? I have all the latest updates and patches installed and have the nvidia driver installed via YOU. I'd really like to get my 1280x1024 back, although even at the lower res the jitter effect is still a little noticeable. I'm really primarily curious as to whether anyone has observed the same things on their machines. I was sure they were the result of that cheapie no-name monitor I was using before today. -- Bryce Hardy (Santa Rosa, CA USA) cygnia@sonic.net
Bryce, On Friday 13 August 2004 20:53, Bryce Hardy wrote:
I had a heck of a time today configuring my new Viewsonic E90B monitor in SuSE 9.1 (x86-64) with a Geforce FX 5700 video card. I entered all the various specs for the monitor to the letter in Sax2, but the display jitters at anything over 1024x768 resolution.
I was also wondering whether anyone out there has the problem of a strange horizontal, south-to-north "wave" effect on their text consoles even totally out of X?
I have all the latest updates and patches installed and have the nvidia driver installed via YOU. I'd really like to get my 1280x1024 back, although even at the lower res the jitter effect is still a little noticeable. I'm really primarily curious as to whether anyone has observed the same things on their machines. I was sure they were the result of that cheapie no-name monitor I was using before today.
The symptoms you describe don't sound like something that can be caused by software problems. Is the monitor the only thing that is new? If the cable from the video card to the monitor is new, perhaps it's poorly shielded or defective? Otherwise, it's possible that the new monitor is faulty. If there's another computer or video source to which you can connect it and the symptom persists, it's probably got a problem.
-- Bryce Hardy (Santa Rosa, CA USA) cygnia@sonic.net
Randall Schulz
On Friday 13 August 2004 09:07 pm, Randall R Schulz wrote:
The symptoms you describe don't sound like something that can be caused by software problems. Is the monitor the only thing that is new?
If the cable from the video card to the monitor is new, perhaps it's poorly shielded or defective? Otherwise, it's possible that the new monitor is faulty. If there's another computer or video source to which you can connect it and the symptom persists, it's probably got a problem.
Thanks for responding Randall. The reason I doubt the faulty hardware theory is because the same symptoms (especially the wave effect in the text consoles) existed on the old monitor. By way of a comparison of the kind you suggest, for several days while waiting for the new monitor to be delivered I had to connect my 27" TV to the computer via the S-Video output on the video card, and the wave effect was very pronounced on the TV screen as well. I suppose the card could be faulty; well I'm still scratching my head. It's a livable situation, unless the still slightly noticeable jitter at the lower res is having some kind of deleterious effect on the monitor which I just spent money on :-/ -- Bryce Hardy (Santa Rosa, CA USA) cygnia@sonic.net
Bryce, On Friday 13 August 2004 21:21, Bryce Hardy wrote:
On Friday 13 August 2004 09:07 pm, Randall R Schulz wrote:
The symptoms you describe don't sound like something that can be caused by software problems. Is the monitor the only thing that is new?
If the cable from the video card to the monitor is new, perhaps it's poorly shielded or defective? Otherwise, it's possible that the new monitor is faulty. If there's another computer or video source to which you can connect it and the symptom persists, it's probably got a problem.
Thanks for responding Randall. The reason I doubt the faulty hardware theory is because the same symptoms (especially the wave effect in the text consoles) existed on the old monitor. By way of a comparison of the kind you suggest, for several days while waiting for the new monitor to be delivered I had to connect my 27" TV to the computer via the S-Video output on the video card, and the wave effect was very pronounced on the TV screen as well. I suppose the card could be faulty; well I'm still scratching my head. It's a livable situation, unless the still slightly noticeable jitter at the lower res is having some kind of deleterious effect on the monitor which I just spent money on :-/
Then I'd have to bet on the video card as the culprit. I just can't think of a way that software problems could cause jitter or waves. Those symptoms (if I'm understanding correctly what you're seeing) suggest instability in the synchronization and / or in the relative timing of the start of the pixel clock in each scan line. The possibility of a poorly shielded video cable still exists. At least it's more likely than software. I take it there's no alternative video source in your system? No video hardware built into the motherboard? If there is, you can try switching to it to see if the symptoms persist.
-- Bryce Hardy (Santa Rosa, CA USA) cygnia@sonic.net
Randall Schulz
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Bryce Hardy
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Randall R Schulz