How to increase the brightness of the computer above the valid interface?

In the interface settings of the laptop the brightness at the limit, but the screen still seems rotten, it lacks brightness, it is visible, when connected to TV through hdmi brightness much more effect settings all reset, have you made any plans?
July 8th 19 at 15:40
2 answers
July 8th 19 at 15:42
The TV backlight is powerful. If the laptop backlighting on fluorescent lamps, which means he's old, he just got the lamp. To increase the brightness, respectively, only the replacement of lamps with new or the alteration of illumination on the led.
July 8th 19 at 15:44
Through the software settings of the graphics card driver. (Depending on the manufacturer, such as Catalyst Control Center).

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