I have an HP Pavillion dm4 with intel core i5.
I'm trying to get my second screen going but whenever I plug it in, nothing happens. The display settings don't recognize the second output either.
I looked at this answer but it's for Atom chipsets...
$ lsmod | grep video uvcvideo 72627 0 videodev 98259 1 uvcvideo v4l2_compat_ioctl32 17128 1 videodev video 19651 1 i915 $ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Robson CE [AMD Radeon HD 6300 Series] $ lspci | grep HDMI 01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Cedar HDMI Audio [Radeon HD 5400/6300 Series]