[SOLVED] how do make the hdmi to connect to a certain gpu while using an external monitor (laptop)

[Vicarious351]

pretty straight forward but my monitor runs at 165 hz and i connected my hdmi cable from the laptop to the external monitor and im looking at my nvidia control panel and it says my monitor is connected to my native intel gpu instead of my nvidia gpu

 

[tennis2]

That's Optimus switching in play. You can manually disable optimus in Nvidia settings

 

[Vicarious351]

How do i find optimus switching options?

 

[tennis2]

Google "Optimus Switching Nvidia Settings"

 

[boju]

Usually with laptops, the dedicated gpu sits behind the scenes rendering frames in performance mode and then passes the frame off to the igpu and then igpu passes it to the screen in which it controls. Sometimes laptop's video port may be connected to the gpu directly but not always. You'd have to try find specific circuit diagrams which can be a pita to find.

See this and fiddle with settings. Try force gpu for particular apps. Have an fps monitor program and compare between forcing gpu and also igpu and see if there's a difference in fps.

If performance via the Hdmi port is not affected by gpu prioritising, it might be connected to the gpu directly. I would then test gpu prioritising again with only the laptop screen between igpu and gpu to compare fps.

Set which GPU to use for individual programs or games for peak performance

We show you how to assign a default graphics card in Windows so you can make sure its doing its job.

www.techadvisor.co.uk

 

[rgd1101]

full system spec? what connection are you using?

 

[boju]

I see that you created a 2nd thread. Should have explained that here you cant set 165Hz.

Depending on your monitor model and resolution, 165Hz via Hdmi might not be possible and need Usb C or Displayport.

Which laptop and monitor model do you have?

 

[boju]

@rgd1101 double post.

https://forums.tomshardware.com/thr...xternal-monitor-laptop.3560693/#post-21497002

 

[Vicarious351]

laptop model is lenovo y520
my monitor is a sceptre e255b
Processor
Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz

Video Card
Intel(R) HD Graphics 630

Video Card #2
NVIDIA GeForce GTX 1050 Ti

RAM
16 GB

Operating System


Windows 10
and when i try to turn up the hz in settings it only gives the option up to 60 hz

 

[boju]

laptop model is lenovo y520
my monitor is a sceptre e255b
and when i try to turn up the hz in settings it only gives the option up to 60 hz

Ok your monitor does 165Hz via Hdmi 2 or Displayport 1.2.

If this is your laptop, https://www.lenovo.com/au/en/laptops/legion-laptops/lenovo-legion-y-series/Legion-Y520/p/88GMY500808

Ports;

• 1 x USB Type-C (USB 3.0 and DisplayPort function)
• HDMI

My guess is Hdmi is connected to the igpu (Igpu afaik doesn't support high refresh rates?) and USB Type C to Displayport is probably what's needed and this connection probably is connected directly the the gpu.

https://www.amazon.com/DisplayPort-...rds=usbc+to+displayport&qid=1577925633&sr=8-4

 

[speedchampion2004]

I see that you created a 2nd thread. Should have explained that here you cant set 165Hz.

Depending on your monitor model and resolution, 165Hz via Hdmi might not be possible and need Usb C or Displayport.

Which laptop and monitor model do you have?

This is most likely true. As far as I know, the max for HDMI at 1080p is 120hz. U will have to switch to DP or USB-C as boju suggested.

 

[boju]

This is most likely true. As far as I know, the max for HDMI at 1080p is 120hz. U will have to switch to DP or USB-C as boju suggested.

Actually, Hdmi 1.3/1.4 1080p 16:9 is capable of 144Hz depending if monitor manufacturer didn't limit. Hdmi 2 up to 240Hz, Hdmi 2.1 480Hz.

Guide to Display Cables / Adapters (v2)

Glenwings Guide to Display Cables / Adapters (v2) This Revision: 2.5.0 (2020-01-16) This is a guide intended to assist with the selection of cables and adapters. It covers the different types of DisplayPort, HDMI, DVI, VGA, and USB-C cables, as well as every possible combination of adapters betwe...

linustechtips.com

Monitor in question is capable of 165Hz via both means, Hdmi and DP according to it's specs. The laptop's Hdmi seems to be the limiting factor, hopefully Usb c does the job.

 

[Vicarious351]

IT WORKED!! tysm i can finally run my computer at 165 hz