I did a windows reset retaining the files and the boot up is now normal.

Thanks again for the very helpful suggestions. I will try updating the drivers and checking the video cable.

Thanks. I need to spend more time testing different options.

Thanks for your reply. I will check that when I next see her. I have an inkling booting to BIOS is ok. The screen shakes and displays a blizzard for 10 maybe 15 seconds when booting the latest...

My mother's Toshiba Satellite l750D screen display shakes and there is a lot of interference and white lines
when the laptop is booted. After about 10 or 15 seconds it calms down. I've tried...

Many thanks for the replies. I have finally got the display working with the battery attached.

Thank-you I will try that.

Sorry, the display is way too dim to change the setting. I tried unplugging and replugging the LED screen connector, but the
same issue as before the display is only normal with the power lead only.

Thank you very much for replying. I will definitely try that.

I have an issue with my Toshiba L50b LED screen. When I boot Windows 10 the display is very dim if the battery is attached. That is the case with or without the AC adaptor. If I power up with the AC...