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Enable DRI3 For AMD Radeon's Xorg Drivers.
@Abhishek Rawal • 06 Aug, 2015 • 2 likes
On 17th of March, DRI3 support was added to xf86-video-ati. However, to enable DRI3, you have to edit xorg.conf in order to enable it.
Commit link : https://cgit.freedesktop.org/xorg/dr.../?id=64e1e4dbdd3caee6f5d8f6b6c094b4533fa94953

1) Create a file /etc/X11/xorg.conf.d/20-radeon.conf (Name of the file doesn't really matter, just make sure it sends with .conf) and add the following lines :
Section "Device"
   Identifier  "Radeon"
   Driver      "radeon"
   Option      "DRI3"
EndSection
Save the file, and reboot the system.

2) Now, check whether DRI3 is enabled or not by looking at Xorg.0.log file located at /var/log.
Here's how mine looks like after enabling DRI3 :
aaa15

Or simply check as :
aaa16
@Hi-Angel • 11 Dec, 2015 Great, thanks, that worked on Ubuntu too - there wasn't the directory though, but upon creation everything works.

There's one thing that bothers me, though - below the «DRI3 enabled» I also see the line:

(II) GLX: Initialized DRI2 GL provider for screen 0
Is that bad?
@Abhishek Rawal • 11 Dec, 2015 • 1 like
Hi-Angel
Great, thanks, that worked on Ubuntu too - there wasn't the directory though, but upon creation everything works.

There's one thing that bothers me, though - below the «DRI3 enabled» I also see the line:

(II) GLX: Initialized DRI2 GL provider for screen 0
Is that bad?
Nope, you're good. 👍
3.2k views

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