I have a Toshiba Sattelite that seems to have a vertical hold issue like the old TV's. For the most time it boots fine with the screen normal as it can be. The not too long into it being on the screen starts to scroll vertically and it is fast. It will occassionally stop but not long enough for me to attempt to change any settings on the resolution or anything.
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Maybe your screen is going bad or the video card inside the computer is
going bad. Try connecting another monitor to the computer to isolate
the problem. Borrow a monitor from a neighbor, friend, relative or
co-worker and connect it to the computer. If the Borrowed monitor
displays ok without the vertical ribbon then your lcd screen is bad and
your video card is good. If the Borrowed monitor displays the same
vertical ribbon as your lcd screen then your video card inside the
computer has an issue.
The video will show on most systems when you
reboot without you having to do anything. Some systems will require you to hit
the FN (Function key) + F1 thru F12. Hold down the FN key then hit the
correct key for displaying on the monitor (F1 thru F12). The correct key
will normally have CRT/LCD on it or it will have the icon of a display.
Try unplugging the laptop. Then remove the battery. With the laptop unplugged and the battery removed, hold the power button for 10 seconds. After that replace the battery and plug the laptop back in. Press the power button and the computer should boot if there is no issue with the motherboard.
Try this: Turn it off. Disconnect power cord and any other device attached to it. Take battery out. Without anything attached. Hold down the power button for 10-15 seconds. Connect the power cord only. Hold down F2 (while it's off) Turn it on while holding down F2. Let go of F2 when something comes out of the screen. If multi colored lines still appears. You have either defective LCD(screen) or video card.
remove battery,ac adapter and other external medias,then hold on power button for 30seconds
with ac adapter attached try to power on still probs ...then its bios probs need to use bootable disk or recovery disk of your laptop
1. try connecting laptop to an external monitor and check if this vertical dark gray bar appears. if yes it means video is the problem. you need to boot in safe mode then uninstall the video driver. boot to notmal mode then download and install the latest video driver. if still same problem then replace video card. if video is built in with motherboard you need to replace motherboard.
2. when the vertical dark gray bar did not appear in the external monitor then it means issue is with the LCD panel. Do this turn off laptop. press and hold D key then press Power button at the same time or Press and hold on the Fn key then Power button check if the test will run. Color displays full screen when you keep pressing on N key when the colors appears check the vertical dark gray bar if still exist in the test, this means LCD panel and LCD cable needs to be replaced.
Hard Drive Issues most likely, Try booting to your Bios Setup utility Page...
Hold the f2 key (or delete key)(some are also f12)Check to see if your HD shows up in there, then reboot and hold the F8 key to try and get to the SAFE MODE options screen... there ya can boot it into safe mode if able to get to it..