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Pete7874

20 Posts

6701

October 11th, 2005 01:00

Flickering display on external monitor

It looks like I'm getting some sort of interference from the hard drive - whenever the hard drive is working, I get flickering on the external LCD monitor, mostly visible on darker backgrounds.  It's not the monitor itself because I connected it to a different notebook and it was fine.  Also, there is no flickering on the built-in LCD of the Inspiron, only the external one.
 
Has anyone experience something like this and was able to fix it?  I just spent $250 on an external monitor and needless to say, I am not a happy camper. :(
 
Thanks.
 
BTW, the monitor is Samsung 710N.
 
EDIT:  OK, the flickering is also visible when the HDD is not running, but less so.
 

Message Edited by Pete7874 on 10-10-2005 09:27 PM

Pete7874

20 Posts

October 11th, 2005 01:00

Hmm... the flickering disappears when the notebook is running on battery (power supply unplugged).  WTH??
 
 

jingyenshiau

239 Posts

October 11th, 2005 11:00

Try this: go into Display Properties > Settings (tab), select your expernal monitor in the Display drop-down menu, click through Advanced (button) > Monitor (tab), and change the screen refresh rate.

Pete7874

20 Posts

October 11th, 2005 14:00

Yeah, I tried that.  My choices are either 60 Hz or 70 Hz, and the flickering happens on both.
 

Pete7874

20 Posts

October 12th, 2005 00:00

Did some more testing.  It appears that the ground on the power supply is bad.  Gonna have to pick up another power supply I guess.
 
Also, the power supply gets extremely hot.  Too bad it's not one of those covered by a recall. :(
 

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