https://community.sony.lu/t5/pcs-accessories/tap-20-brightness/m-p/1421754#M132327 <P>hello All,</P><P>since i updated my tap 20 to windows 8.1 the screen dimming function does not seem to work via manual or auto.</P><P>any ideas what i can do to put it right?</P><P>&nbsp;</P><P>thanks in advance</P> Sat, 16 Nov 2013 20:11:15 GMT lex20000 2013-11-16T20:11:15Z https://community.sony.lu/t5/pcs-accessories/tap-20-brightness/m-p/1421754#M132327 <P>hello All,</P><P>since i updated my tap 20 to windows 8.1 the screen dimming function does not seem to work via manual or auto.</P><P>any ideas what i can do to put it right?</P><P>&nbsp;</P><P>thanks in advance</P> Sat, 16 Nov 2013 20:11:15 GMT https://community.sony.lu/t5/pcs-accessories/tap-20-brightness/m-p/1421754#M132327 lex20000 2013-11-16T20:11:15Z https://community.sony.lu/t5/pcs-accessories/tap-20-brightness/m-p/1423080#M132329 <P>Hi lex20000,<BR /><BR />This is a common problem with various Vaio models after upgrade and Sony is aware – there is currently no fix. From the Sony Windows 8.1 install guidance….<BR /><BR />“Fn+F5/F6 does not work. Please use the Settings charm to change the brightness level.”<BR /><BR />Although your model is not listed my guess is that it applies.<BR /><BR /><A href="http://www.sony.co.uk/support/en/topics/landing/windows8-1_upgrade" target="_blank">http://www.sony.co.uk/support/en/topics/landing/windows8-1_upgrade</A><BR /><BR />Rich</P> Sun, 17 Nov 2013 17:15:43 GMT https://community.sony.lu/t5/pcs-accessories/tap-20-brightness/m-p/1423080#M132329 rich912 2013-11-17T17:15:43Z