Satellite Pro P300 - 23L - horizontal lines on the taskbar

I have a portable Satellite Pro P300 - 23L.
Last night it suddenly appeared, about 30 horizontal thin white lines on the taskbar (actually on the bottom half inch of the screen).
The top 3 or 4 of these lines seem to pulse in a fast and regular way.

Now, I can barely see the icons in the taskbar, or the button to start in the lower left corner.

I read on another forum that the problem may be due to a problem of "grounding".
The charger plug is actually broken and repaired the wiring myself, but that some time previously, so it is possible that a connection is loose or is now was something shorting causing this effect.

I had to order a new charger but in the meantime would appreciate any assistance in order to confirm or deny that this could be the problem.

Any advice on how to remedy this?

Hello

If the problem would be with the power adapter this lines should NOT be visible using the laptop with the battery. Right?
Therefore, it would be really interesting to know if the same lines are visible if the AC adapter is not plugged in.

But I think that this is unrelated to the power adapter. In my opinion its a display issue or a graphics card problem.
Therefore, you must connect an external monitor to check it out.
If the same lines are visible on the external monitor, the graphics chip is assigned the case, it could be a display problem.

Tags: Toshiba

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