Adjust screen brightness in my ThinkPad Lenovo laptop

[Kalpa Welivitigoda]

HI,

I am using ThinkPad Lenovo T530 laptop and I am on Fedora 23 beta. I cannot
adjust my screen brightness with the shortcut keys. I tried several options
like appending "acpi_backlight=vendor" to GRUB_CMDLINE_LINUX but didn't
work. Automatic brightness adjustment that comes with GNOME 3.18 is also
not working (I am not sure whether my laptop has a light sensor).

Any help to get this fixed is highly appreciated, the brightness is so high
that it hurts eyes when working for hours.


-- 
Best Regards,

Kalpa Welivitigoda
+94776509215
http://about.me/callkalpa
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