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Ginnotsuyo

Laptop onboard monitor mod to discrete gpu.

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Posted · Original PosterOP

Ok, here's the thing... My laptop comes with two different video cards, the one from intel (integrated gpu) and an Nvidia card (discrete or dedicated graphics), when I connect an external monitor to the HDMI port, it connects straight to de discrete graphics, but the onboard monitor of the laptop is connected to the integrated graphics... Question: Has anyone tried or is it possible to do something or mod, I don't know, maybe the motherboard or anything to connect the onboard monitor of the laptop directly to de discrete graphics? I mean change the connection to the dedicated gpu only?

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probably not, but why would you do that?

games should render on your dGPU, unless settings are wrong

the iGPU is used only as a passthrough in that case


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I hate Intel's pricing, Ryzen's weird quirks, Nvidia's pricing, and Radeon GPUs in general

 

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Products I like:

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Sony Xperia Z1 / Z2 / 10 ii, Asus Strix 970 / 1070, Samsung SSD, WD HDD, Corsair PSUs (AX, RM, CX(grey)), GeForce GPU, NZXT N450/S340, be quiet! Coolers, G.Skill Trident RAM, Logitech M525, Logitech G440, Razer Deathadder Elite

 

Products I hate:

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Xperia Z3, XiaoMi 5c, Radeon GPUs, Razer Audio Products, any bloatwares

 

Companies I absolutely adore: (and hope it stays that way)

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be quiet! - sent me AM4 mounting for my DRP3 even though it's way past the timeframe stated, no questions asked

Corsair - very good RMA experience, absolutely recommend

 

Companies I hate:

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Nvidia, Intel, Apple, TMT (Thundermatch, a retailer)

 

Personal Blacklisted Companies:

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Acer monitors, Gigabyte, Seagate HDD, Kingston SSD, Razer (except their mouse), XiaoMi Phones

 

Remember, just because I had good/bad experiences with these companies/product, doesn't mean you will have similar experiences too. I would still recommend these products if they made sense for your needs, but I'll add a disclaimer of my experience if it's relevant. Feel free to DM me asking why they are where they are.

 

 

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Posted · Original PosterOP

There are options for the monitor provided by the dedicated gpu control panel only available if the monitor is connected to the discrete graphics. Also, it's been proven that games get better performance when they are running on a monitor connected to the dedicated gpu (case of connecting to an external monitor in my case) than when they are being run using the onboard monitor connected to the igpu. This is important for me, just to know if it's possible or has anyone tried to mod the connection of the onboard monitor to the dedicated gpu.

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On Laptops, the iGPU is used most of the time to save battery life. If you start doing something that needs a lot of GPU power then it will switch to using the dGPU.

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Posted · Original PosterOP
Just now, Darpyface said:

On Laptops, the iGPU is used most of the time to save battery life. If you start doing something that needs a lot of GPU power then it will switch to using the dGPU.

I understand that, I just want to know if the mod is possible, so the onboard monitor gets connected directly to the dGPU, because that way the game doesn't need to get bypassed by the iGPU to the monitor and also would be nice to have the settings offered by the dGPU on the onboard monitor. Just want to know if someone that works with hardware is capable of doing that mod or maybe it could be done by a bios mod idk. I am not tech savy, I just know basic stuff.

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12 minutes ago, Ginnotsuyo said:

it's been proven that games get better performance when they are running on a monitor connected to the dedicated gpu

hmm... by how much? can i get a link? cant find it, idk the right keyword (definitely not igpu vs dgpu)

if u meant thunderbolt docks then NVM, those are limited by other factors


Things I need help with:

Spoiler

 

 

I hate Intel's pricing, Ryzen's weird quirks, Nvidia's pricing, and Radeon GPUs in general

 

Spoiler

 

Products I like:

Spoiler

Sony Xperia Z1 / Z2 / 10 ii, Asus Strix 970 / 1070, Samsung SSD, WD HDD, Corsair PSUs (AX, RM, CX(grey)), GeForce GPU, NZXT N450/S340, be quiet! Coolers, G.Skill Trident RAM, Logitech M525, Logitech G440, Razer Deathadder Elite

 

Products I hate:

Spoiler

Xperia Z3, XiaoMi 5c, Radeon GPUs, Razer Audio Products, any bloatwares

 

Companies I absolutely adore: (and hope it stays that way)

Spoiler

be quiet! - sent me AM4 mounting for my DRP3 even though it's way past the timeframe stated, no questions asked

Corsair - very good RMA experience, absolutely recommend

 

Companies I hate:

Spoiler

Nvidia, Intel, Apple, TMT (Thundermatch, a retailer)

 

Personal Blacklisted Companies:

Spoiler

Acer monitors, Gigabyte, Seagate HDD, Kingston SSD, Razer (except their mouse), XiaoMi Phones

 

Remember, just because I had good/bad experiences with these companies/product, doesn't mean you will have similar experiences too. I would still recommend these products if they made sense for your needs, but I'll add a disclaimer of my experience if it's relevant. Feel free to DM me asking why they are where they are.

 

 

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Posted · Original PosterOP
3 minutes ago, Moonzy said:

hmm... by how much? can i get a link? cant find it, idk the right keyword (definitely not igpu vs dgpu)

if u meant thunderbolt docks then NVM, those are limited by other factors

Here's the link testing what I mean:

 

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7 minutes ago, Ginnotsuyo said:

Here's the link testing what I mean:

interesting, it affects higher fps more

interested to know why this happens though

i suspect CPU bottlenecks, having to handle more traffic from pcie and already working harder on high fps, but hard to know for sure

 

but as for hardwiring your laptop's screen to the dgpu, still dont think it's possible, but maybe someone out there could help you


Things I need help with:

Spoiler

 

 

I hate Intel's pricing, Ryzen's weird quirks, Nvidia's pricing, and Radeon GPUs in general

 

Spoiler

 

Products I like:

Spoiler

Sony Xperia Z1 / Z2 / 10 ii, Asus Strix 970 / 1070, Samsung SSD, WD HDD, Corsair PSUs (AX, RM, CX(grey)), GeForce GPU, NZXT N450/S340, be quiet! Coolers, G.Skill Trident RAM, Logitech M525, Logitech G440, Razer Deathadder Elite

 

Products I hate:

Spoiler

Xperia Z3, XiaoMi 5c, Radeon GPUs, Razer Audio Products, any bloatwares

 

Companies I absolutely adore: (and hope it stays that way)

Spoiler

be quiet! - sent me AM4 mounting for my DRP3 even though it's way past the timeframe stated, no questions asked

Corsair - very good RMA experience, absolutely recommend

 

Companies I hate:

Spoiler

Nvidia, Intel, Apple, TMT (Thundermatch, a retailer)

 

Personal Blacklisted Companies:

Spoiler

Acer monitors, Gigabyte, Seagate HDD, Kingston SSD, Razer (except their mouse), XiaoMi Phones

 

Remember, just because I had good/bad experiences with these companies/product, doesn't mean you will have similar experiences too. I would still recommend these products if they made sense for your needs, but I'll add a disclaimer of my experience if it's relevant. Feel free to DM me asking why they are where they are.

 

 

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It sure is, along as you're fine with going some funky soldering if both the dGPU and monitor share a common communication protocol (laptop monitors are usually wired through eDP or LVDS), or do a custom PCB to bridge and connect both together.


FX6300 @ 4.2GHz | Gigabyte GA-78LMT-USB3 R2 | Hyper 212x | 3x 8GB + 1x 4GB @ 1600MHz | Gigabyte 2060 Super | Corsair CX650M | LG 43UK6520PSA
ASUS X550LN | i5 4210u | 12GB
Lenovo N23 Yoga

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Posted · Original PosterOP
1 hour ago, igormp said:

It sure is, along as you're fine with going some funky soldering if both the dGPU and monitor share a common communication protocol (laptop monitors are usually wired through eDP or LVDS), or do a custom PCB to bridge and connect both together.

All I want to do basically is disconnect the laptop's monitor from the iGPU and connect it to the dGPU. What you're saying, even tho I don't understand all the terminology, sounds like getting closer to what I wish could be possible. So that means modding the motherboard or something like that, by soldering, to make those connections possible?

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Posted · Original PosterOP

I wish that the guys from that make the YouTube videos see this topic and start experimenting on this, if they haven't tried before, in which case I don't find the video on their channel.

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It's not possible. Laptop motherboards only have one video output and that's all there is, unfortunately. 


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i9-9980HK - Radeon Pro 5500m 8GB - 32GB DDR4 - 2TB NVME - many dongles

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4 hours ago, Ginnotsuyo said:

Here's the link testing what I mean:

 

this does not mean that the laptop would be any faster if the laptop screen was connected to the other GPU directly.

This could also be a side effect of the internal display being turned off freeing up more power to be used by the CPU and GPU while also keeping the temps lower.

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10 hours ago, Ginnotsuyo said:

All I want to do basically is disconnect the laptop's monitor from the iGPU and connect it to the dGPU. What you're saying, even tho I don't understand all the terminology, sounds like getting closer to what I wish could be possible. So that means modding the motherboard or something like that, by soldering, to make those connections possible?

Yes, some people usually do similar things when modding Thinkpads with newer screens, or swapping motherboards.

 

6 hours ago, Pixel5 said:

This could also be a side effect of the internal display being turned off freeing up more power to be used by the CPU and GPU while also keeping the temps lower.

No, there's a performance penalty when rendering off screen and bypassing that output to another graphics adapter. 


FX6300 @ 4.2GHz | Gigabyte GA-78LMT-USB3 R2 | Hyper 212x | 3x 8GB + 1x 4GB @ 1600MHz | Gigabyte 2060 Super | Corsair CX650M | LG 43UK6520PSA
ASUS X550LN | i5 4210u | 12GB
Lenovo N23 Yoga

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Posted · Original PosterOP
55 minutes ago, igormp said:

Yes, some people usually do similar things when modding Thinkpads with newer screens, or swapping motherboards.

 

No, there's a performance penalty when rendering off screen and bypassing that output to another graphics adapter. 

Exactly.

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