a laptop (Asus ROG GL752VW) Stupid Windows 10 would not detect HDMI.
Well, latest-and-greatest Linux Mint (KDE) doesn't detect the HDMI
either...

Todd Millecam writes:

Well, either your HDMI port is electrically broken on the board (TV or
Laptop, could be one or the other, hard to tell from an email), or it's a
software issue.

Having 2 different OSes both fail to see the HDMI output sounds like a problem that isn't software to me, but read on.

On 2016-03-16 11:47, kitepilot@kitepilot.com wrote:

I validated the cable and the TV via a DVD player.  Which leaves the
problem to be a software problem or some of incompatibility between
the laptop's hardware and the cable/TV interaction combo.

According to the internet, the laptop has one of those dual-graphics-card chipsets in it.  (Intel HD Graphic 530 and GeForce 960M.)  I don't know which card is responsible for handling the HDMI port.  According to https://nouveau.freedesktop.org/wiki/FeatureMatrix/ , the 960M is in the NV110 class of hardware and so should be able to do HDMI with the nouveau X module.  However, the nouveau FAQ says, "If you have a laptop with dual Intel/Nvidia graphics, the Nvidia card may or may not be usable. The card may be selectable via vgaswitcheroo or a BIOS option, you should check those first."

So:  See where the HDMI port is with lspci, maybe see what you can find in the BIOS Setup, and investigate the "vgaswitcheroo" program?

--
Crow202 Blog: http://crow202.org/wordpress
There is no Darkness in Eternity
But only Light too dim for us to see.

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