[SOLVED] How do I enable DRI3 with the radeon driver in current?

ahc_fan · 11-14-2015, 04:09 PM

I created the file /etc/X11/xorg.conf.d/20-radeon.conf and put the following in:

Code:

Section "Module"
        Load "dri3"
EndSection

Section "Device"
   Identifier  "Radeon"
   Driver      "radeon"
   Option      "DRI" 	"3"
EndSection

But apparently it is not working:

Code:

# ~: grep DRI /var/log/Xorg.0.log
[    41.249] (II) glamor: EGL version 1.4 (DRI2):
[    41.425] (II) RADEON(0): [DRI2] Setup complete
[    41.425] (II) RADEON(0): [DRI2]   DRI driver: radeonsi
[    41.425] (II) RADEON(0): [DRI2]   VDPAU driver: radeonsi
[    41.535] (WW) RADEON(0): Option "DRI" is not used
[    41.537] (II) GLX: Initialized DRI2 GL provider for screen 0

What do I do?

Edit: I found this, so I guess DRI3 is already enabled and the file I created is not needed?

Code:

$ ~: grep -i dri3 /var/log/Xorg.0.log
[    54.097] (II) LoadModule: "dri3"
[    54.097] (II) Module "dri3" already built-in
[    55.514] (WW) RADEON(0): Option "DRI3" is not used

TobiSGD · 11-14-2015, 06:37 PM

This is how my 20-radeon.conf looks like on Arch Linux:

Code:

Section "Device"
        Identifier  "HD3200"
        Driver "radeon"
        option "swapbufferswait" "0"
        Option "ColorTiling" "on"
        Option "DRI3"        "1"
        option "AccelMethod"  "glamor"
Endsection

Code:

>>> grep DRI /var/log/Xorg.0.log
[     6.760] (**) RADEON(0): Option "DRI3" "1"
[     7.087] (II) glamor: EGL version 1.4 (DRI2):
[     7.126] (II) RADEON(0): [DRI2] Setup complete
[     7.126] (II) RADEON(0): [DRI2]   DRI driver: r600
[     7.126] (II) RADEON(0): [DRI2]   VDPAU driver: r600
[     7.126] (**) RADEON(0): DRI3 enabled
[     7.232] (II) GLX: Initialized DRI2 GL provider for screen 0

ahc_fan · 11-15-2015, 08:52 AM

I copied yours into mine, removed the Module section, and same deal:

Code:

# ~: grep DRI /var/log/Xorg.0.log
[    41.236] (II) glamor: EGL version 1.4 (DRI2):
[    41.412] (II) RADEON(0): [DRI2] Setup complete
[    41.412] (II) RADEON(0): [DRI2]   DRI driver: radeonsi
[    41.412] (II) RADEON(0): [DRI2]   VDPAU driver: radeonsi
[    41.523] (WW) RADEON(0): Option "DRI3" is not used
[    41.525] (II) GLX: Initialized DRI2 GL provider for screen 0

Is it a wrong version Xorg server perhaps?

TobiSGD · 11-15-2015, 10:17 AM

For DRI3 you need at least xf86-video-ati in version 7.6, as far as I know -current has 7.6.1, so if your system is fully upgraded it should work.

ahc_fan · 11-15-2015, 10:24 AM

There's the problem. I haven't upgraded in a couple weeks and I still have version 7.5. Thanks, I will upgrade ASAP.

Nille_kungen · 11-29-2015, 05:06 PM

I'm using dri3 and this is my /etc/X11/xorg.conf.d/20-radeon.conf

Code:

Section "Device"
        Identifier "Radeon mygraphicscard"
        Driver "radeon"
        Option "DRI" "3"
EndSection

It's not Option "DRI3" "1" as posted in this thread it's Option "DRI" "3".
You shouldn't need any of the other options on current and you need current until 14.2 is out.
You might want to try Option "AccelMethod" "glamor" if your hardware is pre tahiti since it's often faster for 2D.
To check the default options read radeon manpage "man radeon".
One thing with DRI3 is that you don't need to set "xrandr --setprovideroffloadsink" for dual GPU.

ReaperX7 · 11-29-2015, 08:46 PM

Also this:

Code:

Section "Module"
        Load "dri3"
EndSection

should be changed to this:

Code:

Section "Module"
        Load "glx"
EndSection

GLX will automatically load the dri module. There is no dri3 module.

Nille_kungen · 11-29-2015, 09:56 PM

I don't have that module section since it's not needed.
I didn't think that you needed to load glx separately since 3.12 with kms and egl, but I'm not sure since everything probes automagically these days.