Vertical line on laptop display comes & goes

January 20, 2011 at 18:49:44
Specs: Windows 7
Toshiba laptop has vertical bar or band about in the middle of the screen. P105-S6147 made in 2006. Toshiba not supporting the upgrade? No problem until installing Win 7. the bar goes away for a while sometimes. If I unplug the monitor and reseat the connector the screen will have a perfect picture but after a second or so the bar will start at the top and fill to the bottom. It will also go away on occasion after some keystroke or other but eventually returns. New screen and inverter installed. Just woke it up and logo screen perfect, Win 7 welcome screen good for about 2 seconds then a 1/4" line starting at the top and then a second later a 1" wide band from the top in the same location. band had alternated between sizes. Fully booted now and the bar is there. The bar is not present when using CTRL/Print Screen and pasting in Paint. Remote screen works fine. Have gone through all of the display settings with no change. This is a fresh Win 7 install on a newly formatted hard drive. No other software has been installed. The computer did this before with a different hard drive also with Win 7 installed. I am looking for suggestions as to what might be broken here.

See More: Vertical line on laptop display comes & goes

Report •


#1
January 20, 2011 at 22:53:50
i doubt that it a win 7 issue, however, try installing another os on a second drive/partition and boot up to prove or disprove this,
have you loaded the latest vista drivers for the video or using a win7 driver? try both
it sounds more like a hardware issue than software, hot/loose connections maybe, try holding the monitor plug in place while switched on, see if it gets rid of the line, i had a toshiba with similar problem turned out the solder points for the plug on the board were no good.

i hate computers!
but cant help myself....


Report •

#2
January 21, 2011 at 11:46:44
Sounds like graphics card. GC will produce funny lines and colors as the vid RAM starts to go.

Report •

#3
January 21, 2011 at 12:29:53
I have considered both the graphics card and the possibility of a cable issue. As for the cable: If i unplug and replug the video cable hot, the picture will be perfect for a moment or so and then the white line starts at the top and fills to the bottom exactly as you might expect it to on refresh. If i wiggle the cable around or press on the connector, no change. I guess, as suggested, there might be a loose solder joint on the connector. I might give a try at reflowing the solder on the connector.
As for the display card going bad, I have been under the impression that there is only one set of graphics electronics that is shared with the remote monitor jack. "If" that is true, then the display card is ok as I have a great image on my remote monitor. If there is an active electronic distribution amplifier incorporated, as we do in external systems I design, then possibly one side of it is failing and the other side is OK. I am open to additional insight into exactly how this might be configured. Jim

Report •

Related Solutions

#4
January 21, 2011 at 14:43:10
Another possibility: If the problem lines are always in the exact same place on the monitor when they are present, you monitor itself may be going bad.

I am not sure about the external monitor connector on the laptop, but I suspect that it is like a dual output video card with at least dual amplifying circuits.

You have to be a little bit crazy to keep you from going insane.


Report •

#5
January 21, 2011 at 19:10:08
Not saying that it is not a screen but, this is a brand new screen and the line is in exactly the same place as it was on the screen I removed. Since I purchased this screen 5 years after I purchased the original screen I doubt that it is related. However, anything is possible since we don't yet know what is possible. Thanks for the help. Jim

Report •

#6
January 21, 2011 at 20:03:41
I just said it was another possibility, though since it appears on both monitors it is unlikely. If it were driver related, I would figure that a problem like that would not always appear in the same place though also a possibility (easy enough to test by an update). I am thinking that it is in the hardware, a weak component.

You have to be a little bit crazy to keep you from going insane.


Report •

#7
May 18, 2011 at 08:14:29
I found that this vertical, red, center line on my Dell Studio laptop is caused by opening the closed laptop from the center. If possible. lift it carefully from the front corners or sides. "Carefully"

Report •


Ask Question