Horrible internal display + eGPU perforamnce
 
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Horrible internal display + eGPU perforamnce  

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niirb
(@niirb)
Active Member
Joined: 7 months ago
 
https://egpu.io/forums/thunderbolt-linux-setup/ubuntu-19-04-easy-to-use-setup-script-for-your-egpu/#post-88539"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://egpu.io/forums/thunderbolt-linux-setup/rx580-slow-performance-on-new-xps13-9300-on-arch/#post-88024"}}},"blocks":[{"key":"3jt82","text":"Hi, \nI did some testing with an RX580 eGPU on Linux while running it via an internal display. I used hertg's switcher ( https://egpu.io/forums/thunderbolt-linux-setup/ubuntu-19-04-easy-to-use-setup-script-for-your-egpu/#post-88539) - tho I'm not sure if that's even needed with an internal display - and ran a Uniengine Heaven benchmark. \n","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":119,"length":110,"key":0}],"data":{}},{"key":"bil2b","text":"I used the kisak mesa drivers on Pop OS 20.10.\n","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"akk9e","text":"On max settings 1080p I got a score of 754 while running the same on Windows 10 gave me a score of 1350. It was definitely better than running an iGPU but that's still a big difference. \n","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"9ugv2","text":"Does anyone know if this is the cap of internal display performance on Linux with an eGPU? Is there something wrong with the setup? I noticed some other users had performance issues with the same GPU ( https://egpu.io/forums/thunderbolt-linux-setup/rx580-slow-performance-on-new-xps13-9300-on-arch/#post-88024) is this somewhat related? I \n","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":202,"length":107,"key":1}],"data":{}}]}">

Hi, I did some testing with an RX580 eGPU on Linux while running it via an internal display.

I used hertg's switcher ( https://egpu.io/forums/thunderbolt-linux-setup/ubuntu-19-04-easy-to-use-setup-script-for-your-egpu/#post-88539 ) - tho I'm not sure if that's even needed with an internal display - and ran a Uniengine Heaven benchmark.


I used the kisak mesa drivers on Pop OS 20.10.

On max settings 1080p I got a score of 754 while running the same on Windows 10 gave me a score of 1350. It was definitely better than running an iGPU but that's still a big difference.
Does anyone know if this is the cap of internal display performance on Linux with an eGPU? Is there something wrong with the setup? I noticed some other users had performance issues with the same GPU ( https://egpu.io/forums/thunderbolt-linux-setup/rx580-slow-performance-on-new-xps13-9300-on-arch/#post-88024 ) is this somewhat related?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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nu_ninja
(@nu_ninja)
Reputable Member
Joined: 3 years ago
 

Are you using the same api on both windows and linux? If you use openGL on both performance should be similar, if you use dx11 on windows then performance will be different because of that.

The script should not be set to external/egpu mode when using AMD card on the internal display, but the script should automatically be setting this correctly, you can manually run the script to make sure.

Mid-2012 13" Macbook Pro (MacBookPro9,2) TB1 -> RX 460/560 (AKiTiO Node/Thunder2)
+ macOS 10.15+Win10 + Linux Mint 19.1

 
2012 13" MacBook Pro [3rd,2C,M] + RX 460 @ 10Gbps-TB1 (AKiTiO Thunder2) + macOS 10.14.4 [build link]  


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