I put this question in Arquade but was told to move it here:

I recently bought an AOC G2770PF 144hz 1ms Monitor which you can check out here: https://www.amazon.com/AOC-G2770PF-Freesync-DisplayPort-Speakers/dp/B013YIR5WU

Currently, i don't have a Desktop Computer so I am running this on my laptop you can check it here: https://www.amazon.com/dp/B015PYZI8E/ref=olp_product_details?_encoding=UTF8&me=

Anyways, The Monitors 'Extra' Tab on the OCD shows:

Horizontal Refresh Rate: 68KHz

Vertical Refresh Rate: 60Hz

Which, of course, is odd considering the monitor literally shows 144hz on the Frame. I am using a Male HDMI and Male DVI-D cable to connect the two (I'm not sure if this is the problem or not) I mainly play csgo on 1400x1050 resolution so I thought that since HDMI 1.3+ can (apparently) support 144hz @ 1920x1080 that I could of course play on 144hz on a resolution less than 1920x1080. when I checked the csgo console command "mat_info" it said that I was running 1400x1050@60hz what is the problem? Also im not to sure what the version of my laptop's HDMI port supports (1.3,1.4,2.0 etc;) would this mean that i cant run on 144hz on HDMI to HDMI?

Heres what it says on display adapter properties: DisplaySettings


The display’s specs (manual page 58) are very clear on this:

Vertical scan range G2770PF: 35Hz~146Hz for DP only

Some other model can also do it over Dual Link DVI, though it’s not entirely clear whether the G2770PF can. It most certainly won’t work over Single Link DVI or HDMI.

  • Thanks for the information, since my laptop only has HDMI what is the maximum resolution that i can play on with 144hz or even 120hz? – Jeremy N Feb 7 '18 at 23:42
  • This isn’t a bandwidth problem. It’s a limitation with the display’s internal design. Since FreeSync requires DisplayPort anyway, they simply skipped support for higher refresh rates on other inputs. – Daniel B Feb 8 '18 at 5:52

HDMI 1.2 is limited to HD resolution @60Hz. You want DisplayPort or DVI. HDMI 1.3 and 1.4 are limited to 1920 × 1080 at 120 Hz.

Not sure what the newer HDMI standards support for HD refresh rates.

You will need a 1.3 or 1.4 HDMI cable and ensure your laptop has HDMI 1.3 or newer support. Note that you can get high quality HDMI cables for less than $10 on the internet, those $50 or even $1500 cables are absolutely the exact same ...

Sources: https://en.wikipedia.org/wiki/HDMI https://www.hdmi.org

  • 2
    actually depends on the HDMI version - I have a monitor that does 4k30 and another one that does 4k60 - and my video card will do 4k60. HDMI will easily do better than 4k60 with the right video card and possibly cable – Journeyman Geek Feb 7 '18 at 9:36
  • Indeed, I was initially implying HDMI 1.2 ... – user2531336 Feb 7 '18 at 9:41
  • I dont need to use it on 1920x1080 though so could i still technically use it on a resolution less than that (1400x1050)? – Jeremy N Feb 7 '18 at 23:40

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