bobvann posted a question in OS X Yosemite 10.10Hi, I'm new to Mac OS X, I am a GNU/Linux user and programmer. This is my pc: Sony VAIO Fit 15E intel core i5 i3337U 2.7 GHZ 6GB RAM DDR3 nVidia G750M I installed Yosemite and solved problems with Ethernet, battery indicator and everything works fine (already installed Xcode, etc). But... I have two problems: 1. I can't manage to use the Wifi: Broadcom BCM43142 Yosemite detects is as 07:00.0 Network controller: Broadcom Corporation Device 4365 (rev 01) Anybody knows where to find a kext? Maybe a guide to install it properly? 2. I can't control the brightness of the screen and that's a little problem as it drains my battery and destroys my eyes. Tried googling but found some patches... really I don't know how to install it or go on. Thank so much to anybody will help me!