External Monitor via HDMI: Washed out colours ... Also, monitor not showing in "device manager"

[cmaesing]

I have an Acer S273HL monitor. It used to work wonderfully with my old laptop, VGA connector.

 

My new laptop's own display also works perfectly. No issues there.

 

However, when I attach my new laptop to the Acer S273HL monitor via HDMI cable, the colours look very washed out. Black is only grey, for example. When having both monitors on parallely, I can clearly see the difference: The laptop's own monitor shows black as black, while the Acer shows it as grey.

 

I have played with the Acer' own settings, but to no avail: The washed out colour scheme remains.

 

My guess is that it is (1) either a driver issue, or (2) the HDMI port on my laptop is not yet enabled.

 

@ (1): I did even go to acer.com and downloaded the driver for this monitor. However, when I access the device manager, this monitor is not even showing! All I see is Generic PnP under the monitor section, i.e. the laptop's internal monitor.

 

@ (2): How would I enable the HDMI port on my laptop?

...

 

Am running W7 64.

 

Thanks for any hint or advice!

[soupdragon1234]

HDMI has a limited colour gamut compared to DP or DVI especially with Nvidia hardware. Its deliberate. You can overcome this if your monitor supports EDID overrides there is a neat tool by the name of CRU (custom resolutions utility) by ToastyX that will enable this easily (better than hacking the registry at anyrate) and and pop a donation his way if you find it unbelievably useful, I did.

 

More information here:

 

https://pcmonitors.info/articles/correcting-hdmi-colour-on-nvidia-and-amd-gpus/