Manjaro Info Center not showing dedicated GPU

I want to make sure if Manjaro has detected my GPUs and installed the proper drivers for them.
when I enter this command mhwd -l -d the output is like this:

--------------------------------------------------------------------------------
> PCI Device: /devices/pci0000:00/0000:00:1c.5/0000:26:00.0 (0200:10ec:8168)
  Network controller Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
--------------------------------------------------------------------------------
  > AVAILABLE:

   NAME:        network-r8168
   ATTACHED:    PCI
   VERSION:     2016.04.20
   INFO:        RealTek RTL-8168 Gigabit Ethernet driver
   PRIORITY:    0
   FREEDRIVER:  true
   DEPENDS:     -
   CONFLICTS:   -
   CLASSIDS:    0200 
   VENDORIDS:   1186 10ec 


--------------------------------------------------------------------------------
> PCI Device: /devices/pci0000:00/0000:00:01.0/0000:01:00.0 (0300:1002:6760)
  Display controller ATI Technologies Inc Seymour [Radeon HD 6400M/7400M Series]
--------------------------------------------------------------------------------
  > INSTALLED:

   NAME:        video-linux
   ATTACHED:    PCI
   VERSION:     2018.05.04
   INFO:        Standard open source drivers.
   PRIORITY:    2
   FREEDRIVER:  true
   DEPENDS:     -
   CONFLICTS:   -
   CLASSIDS:    0300 0380 0302 
   VENDORIDS:   1002 8086 10de 



  > AVAILABLE:

   NAME:        video-linux
   ATTACHED:    PCI
   VERSION:     2018.05.04
   INFO:        Standard open source drivers.
   PRIORITY:    2
   FREEDRIVER:  true
   DEPENDS:     -
   CONFLICTS:   -
   CLASSIDS:    0300 0380 0302 
   VENDORIDS:   1002 8086 10de 

   NAME:        video-modesetting
   ATTACHED:    PCI
   VERSION:     2020.01.13
   INFO:        X.org modesetting video driver.
   PRIORITY:    1
   FREEDRIVER:  true
   DEPENDS:     -
   CONFLICTS:   -
   CLASSIDS:    0300 
   VENDORIDS:   * 

   NAME:        video-vesa
   ATTACHED:    PCI
   VERSION:     2017.03.12
   INFO:        X.org vesa video driver.
   PRIORITY:    0
   FREEDRIVER:  true
   DEPENDS:     -
   CONFLICTS:   -
   CLASSIDS:    0300 
   VENDORIDS:   * 


--------------------------------------------------------------------------------
> PCI Device: /devices/pci0000:00/0000:00:02.0 (0300:8086:0116)
  Display controller Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller
--------------------------------------------------------------------------------
  > INSTALLED:

   NAME:        video-linux
   ATTACHED:    PCI
   VERSION:     2018.05.04
   INFO:        Standard open source drivers.
   PRIORITY:    2
   FREEDRIVER:  true
   DEPENDS:     -
   CONFLICTS:   -
   CLASSIDS:    0300 0380 0302 
   VENDORIDS:   1002 8086 10de 



  > AVAILABLE:

   NAME:        video-linux
   ATTACHED:    PCI
   VERSION:     2018.05.04
   INFO:        Standard open source drivers.
   PRIORITY:    2
   FREEDRIVER:  true
   DEPENDS:     -
   CONFLICTS:   -
   CLASSIDS:    0300 0380 0302 
   VENDORIDS:   1002 8086 10de 

   NAME:        video-modesetting
   ATTACHED:    PCI
   VERSION:     2020.01.13
   INFO:        X.org modesetting video driver.
   PRIORITY:    1
   FREEDRIVER:  true
   DEPENDS:     -
   CONFLICTS:   -
   CLASSIDS:    0300 
   VENDORIDS:   * 

   NAME:        video-vesa
   ATTACHED:    PCI
   VERSION:     2017.03.12
   INFO:        X.org vesa video driver.
   PRIORITY:    0
   FREEDRIVER:  true
   DEPENDS:     -
   CONFLICTS:   -
   CLASSIDS:    0300 
   VENDORIDS:   * 


Warning: no configs for USB devices found!

but when I check the Info Center it’s only showing the intel GPU.

every time I use a Debian-based distro on this machine it shows both Intel and AMD GPUs.
but when I use Manjaro It only shows Intel GPU(both Gnome and KDE versions)
Is something wrong here?

my laptop is a bit old. I want to use my AMD GPU.

If by default you use

glxinfo | grep OpenGL

then you will get information about the iGPU you have
but if you use

DRI_PRIME=1 glxinfo | grep OpenGL

then the dGPU AMD one will be used …

Same with any other UI application

DRI_PRIME=1 <application>
1 Like

Info Center by default sees the iGPU,there is no problem there,you can run

DRI_PRIME=1 kinfocenter

and it should display your dGPU,just like bogdancovaciu said,thats the way to run applications with the dGPU.

1 Like

after I changed application’s GPU to dGPU how can I return it to the default state?

OK, I found it myself. using 0 instead of 1 works. thanks

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