laptop LCD flicker / streak / noise

[ShivaSmith]

Hi,

 

I recently installed MDK 9.2 on my Fujitsu P2120 laptop. It has an ATI Mobility Radeon display card with 8MB of display RAM.

 

I'm running at 1024x768 and basically the LCD flat panel display is crystal clear and sharp, except that there is some occasional flicker-like noise that appears toward the right of the active window which becomes more pronounced if the window is moved or if the mouse pointer travels over a link or other GUI element.

 

It seems that maybe this is some kind of LCD hardware refresh issue, so I am considering playing around with xvidtune, which incidentally, the settings that print out from that when I run it are:

 

Vendor: Generic, Model: Flat Panel 1024x768

Num hsync: 1, Num vsync: 1

hsync range 0: 31.50 - 48.50

vsync range 0: 40.00 - 70.00

 

Now under Windows the display control panel will only let you select 60 HZ for a refresh rate, 'cause it's an LCD -- higher rates don't make sense.

 

It does appear to me that on installation the correct display driver ("Radeon") and resolution and color depths (24 bpp) were set. Maybe I just need to play with xvidtune.

 

I just thought I'd post this here in case any display gurus out there have any ideas...

 

thanks for all help :)

[DarkVejita]

I know that with my Dell Inspiron, I had to go into the BIOS and set the display to LCD Mode. If I had it in 'Simul Mode' (CRT and LCD at the same time), it would cause problems like this.

 

I have an Nvidia card, but since this is probably BIOS based, it shouldn't make a difference.

 

Give it a try.... YMMV.

 

Vejita

[LarsB]

Have you tried 16 bit, my Toshiba was hopeless with 24 bit