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How to install brightness drivers in 12.10 in core i5 1st gen 650?

cn flag

I am a newbie.Please guide step by step. I installed UBUNTU 21.10. But cannot control brightness. I installed brightness controller but scrolling the slider does not work. There is no sys/control/backlight folder. According to me drivers for brightness are not installed. How can i install such drivers. I have core i5 650 Brightness Controller

Brightness slider not available by default No additional drivers

guiverc avatar
cn flag
Please correct/clarify your details; in the title you state 12.10 (or the 2012-October release), a very old and EOL release, but in the question you mention 21.10 (or the 2021-October release).
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