Arch Linux

iMuzaffar

Member

Registered: 2016-08-08

Posts: 3

Help to Disable Integrated Graphics and Enable Discrete graphics

Hi.

I tried some methods to enable discrete graphics but its not working.

Intel HD 5500 / AMD M375

$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x7d cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 4 outputs: 4 associated providers: 1 name:Intel
Provider 1: id: 0x55 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 6 outputs: 0 associated providers: 1 name:VERDE @ pci:0000:04:00.0

cat /sys/kernel/debug/vgaswitcheroo/switch
0:IGD:+:Pwr:0000:00:02.0
1:DIS: :DynOff:0000:04:00.0

Thanks

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,424

Website

Re: Help to Disable Integrated Graphics and Enable Discrete graphics

I tried some methods to enable discrete graphics but its not working.

What did you try? And what is not working? https://bbs.archlinux.org/viewtopic.php?id=57855

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iMuzaffar

Member

Registered: 2016-08-08

Posts: 3

Re: Help to Disable Integrated Graphics and Enable Discrete graphics

I tried some methods to enable discrete graphics but its not working.

What did you try? And what is not working? https://bbs.archlinux.org/viewtopic.php?id=57855

i tried vgaswitcheroo . that dosnt worked for me.
There is no options in bios to switch dedicated graphics

Using PRIME only open source driver supported .

Any Method to complete turn off integrated graphics and just use dedicated .

thanks

sorry for bad English

onslow77

Member

Registered: 2014-09-21

Posts: 279

Re: Help to Disable Integrated Graphics and Enable Discrete graphics

Hello!

I suggest you read the hybrid graphics wiki. That wiki page and its links provide suggested solutions to what you want to do. For example, with PRIME, look into "PRIME GPU Offloading and Reverese PRIME".

Note: The package "fglrx" has changed its name, see here.

Regards
Martin

Last edited by onslow77 (2016-08-08 13:49:37)

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Lone_Wolf

Member

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 11,911

Re: Help to Disable Integrated Graphics and Enable Discrete graphics

iMuzaffar,

are you running AMD catalyst ?

If so, check the "PowerXpress support" section on the catalyst wiki page.

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Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

(A works at time B)  && (time C > time B ) ≠  (A works at time C)

iMuzaffar

Member

Registered: 2016-08-08

Posts: 3

Re: Help to Disable Integrated Graphics and Enable Discrete graphics

iMuzaffar,

are you running AMD catalyst ?

If so, check the "PowerXpress support" section on the catalyst wiki page.

Nope.

I cant switch graphic card (adapter) - its using only intel card as you can see vgaswitcheroo output the amd card is complete off.

im getting no adapter error while installing catalyst.

thanks

alive4ever

Member

Registered: 2016-07-10

Posts: 65

Re: Help to Disable Integrated Graphics and Enable Discrete graphics

That's because the dedicated GPU doesn't have direct display output. It can only do 'offload' rendering and send back the render result to the integrated GPU to display the result.
That's how GPU offloading works. The DRI developer called this type of hybrid graphics as MUX-less

I recommend PRIME GPU offloading for your case, either via DRI 2 with manual offload or automatic offload with DRI 3.

Last edited by alive4ever (2016-08-11 10:27:16)

Lone_Wolf

Member

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 11,911

Re: Help to Disable Integrated Graphics and Enable Discrete graphics

iMuzaffar,

What alive4ever refers to is described here in arch wiki .

That method doesn't work with catalyst though.
Is the performance of the radeon opensource drivers good enough for you ?

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Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

(A works at time B)  && (time C > time B ) ≠  (A works at time C)