Use thse scripts
Remove any extra lines added in fstab as suggested by Arch Wiki, You may or may not remove this line.(better not to (as suggested by arch wiki))
blacklist radeon
blacklist radeon
to my /etc/modprobe.d/radeon.conf
I suppose that my graphic card is draining my battery. But when I tried the method suggested in WIKI to switch off Discrete Graphic Card using VGA switcheroo, I am unable to use /etc/rc.local. So please suggest me a way to turn off my discrete graphic card.
Thanks in advance
Edit ==> My lspci | grep VGA output
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Caicos [Radeon HD 6400M/7400M Series]