I have a bit old Satellite A45 laptop running with Windows XP SP2. The keys assigned in this for brightness are Fn +F6 to lower down and Fn + F7 to increase but when am pressing them nothing happens. I need to decrease the brightness as it is very high.
Any idea what could be the problem? Are the keys faulty being an old laptop or is there any problem with the operating system itself? Or many be I’m pressing wrong keys. Any suggestion will be appreciated.
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