Toshiba Satellite grey screen of death

[bgaddis]

Toshiba satellite L675SD-S7016 The screen goes grey(flickering grey, white)on startup and at odd intermittent times. Sometimes I can reboot and it works, sometimes not. Sometimes goes to Toshiba startup screen then goes grey. I sent it back to Toshiba when still under warranty several years ago and they replaced the screen. Did not help. I had the computer apart to install additional RAM and I plugged and unplugged the monitor connections and made sure everything was tight. Still does it. This seems to be a commobn problem with these laptops. There doesn't seem to be a definitive solution. Help!!

 

[webworkings]

Try this...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.

If you can't see on the external monitor at all, or the problem occurs on the external monitor as well, then it is probably the graphics card/GPU that is the problem, which may require the motherboard be replaced.

 

[bee.gee]

Try this...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.

If you can't see on the external monitor at all, or the problem occurs on the external monitor as well, then it is probably the graphics card/GPU that is the problem, which may require the motherboard be replaced.

I plugged the laptop into an external monitor and it works flawlessly. I must assume then that the problem is in the connecting cable. I don't know whether to replace the cable or just try verifying the soundness of the connections. I already did that once when I upgraded the RAM a few years back. Is there likely to be a flaw i the cable, or would it be more likely to be in the ribbon edge connector?