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Old 03-24-2007, 03:51 PM   #1
Registered: Feb 2007
Distribution: Ubuntu 10.04
Posts: 281

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video card Prob ?


I have switched from a 19" Trinitron to a 21" Trinitron and installed the appropriate driver. It's display of text at POST and the Pre- OS legend in Windows are as expected, but when Windows or Linux is loaded there is multiple ghosts to the right of texts and icons etc...

Any ideas what the solution might be?

My old monitor was:
Dell Trinitron ULTRASCANP99

Horizontal scan range 30 kHz to 96 kHz
Vertical scan range (Refresh rate) 48 Hz to 120 Hz
Optimal preset resolution 1024 x 768 at 75 Hz or 85 Hz
Highest preset resolution 1600 x 1200 at 75 Hz
Highest capable resolution 1600 x 1200 at 75 Hz

My new Monitor is:

Dell Trinitron P91130
Horizontal scan range 30 kHz to 130 kHz (automatic)
Vertical scan range 48 Hz to 170 Hz (automatic)

Optimal preset resolution 1280 x 1024 at 85 Hz
Highest preset resolution 1600 x 1200 at 85 Hz
Highest addressable resolution* 2048 x 1536 at 80 Hz *

Addressable means the monitor will sync up to this mode. However, Dell does not guarantee the image will be sized and centred correctly.

Electrical Video input signals analogue Vpp, positive at 75 ohm Synchronization input signals separate horizontal and vertical; and composite TTL level, positive or negative Sync on Green at 0.3 Vp-p

AC input voltage / frequency / current 100 to 240 VAC / 50 or 60 Hz 3 Hz / 1.6 A (RMS) at 120 VAC and 0.9 A (RMS) at 220 VAC

Inrush current at 120 V 50 A

Inrush current at 240 V 80 A

Dell guarantees image size and centering for all preset modes listed in the following table.

My video card Spec is:

SiS Mirage Graphics

Chip type SiS 760IC
DAC Type Internal
Memory 32 MB
Adapter string Mirage 2
BIOS Info 2.03.00

NB: Dropping the res or refresh rate makes no difference
Old 03-24-2007, 04:15 PM   #2
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Registered: Jan 2002
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The electron tubes are not converging. You or a professional have to converge them. Do not ask me how because it is different for each CRT computer and TV monitor.
Old 03-25-2007, 06:11 AM   #3
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but when Windows or Linux is loaded there is multiple ghosts to the right of texts and icons etc...
... So as it doesn't matter which OS you are using, it's probably a hardware fault.

Maybe a bad video cable - improperly terminated cables will cause signal reflections (from one end of the cable to the other), causing ghosts that gradually fade away as the reflected signals reduce in amplitude.
So, check your cable is properly plugged in.
Then try the monitor on another PC - if still the same problem, I'd take it back!


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