On 16/10/17 06:21 PM, Kai Wasserbäch wrote: > Michel Dänzer wrote on 16.10.2017 18:05: >> On 16/10/17 05:53 PM, Kai Wasserbäch wrote: >>> >>> Hey, >>> I'm not sure whether this is a bug or if I'm just missing something. I've >>> got >>> the following stack (Debian testing as a base): >>> GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1) >>> Mesa: Git:master/c7a81dcea9 >>> libdrm: 2.4.84-2 >>> LLVM: SVN:trunk/r315850 (6.0 devel) >>> X.Org: 2:1.19.3-2 >>> Linux: 4.13.7 >>> Firmware (firmware-amd-graphics): 20170823-1 >>> libclc: Git:master/df9db2adca >>> DDX (xserver-xorg-video-amdgpu): 1.4.0-1 >>> >>> In my xorg.conf I have (and if I read the manpage correctly, the »Option >>> "DRI" >>> "3"« line shouldn't even be necessary anymore): >>>> Section "Device" >>>> Identifier "Forced to amdgpu with DRI3" >>>> Driver "amdgpu" >>>> Option "DRI" "3" >>>> EndSection >>> >>> But when I look at my Xorg.0.log or the output of eglinfo, I see the >>> following >>> lines: >>> - Xorg.0.log: [ 15.305] (II) glamor: EGL version 1.5 (DRI2): >>> - eglinfo: EGL version string: 1.5 (DRI2) >>> >>> My understanding was, that amdgpu supports DRI3 for quite some time now and >>> therefore would expect to see something like "EGL version string: 1.5 >>> (DRI3)". >>> >>> What am I missing? >> >> Only that those messages are about a different "DRI2" than the >> alternative to DRI3. > > ah, I was not aware of that. What „DRI“ is meant here then?
The API exposed by *_dri.so to the EGL runtime. It's called "DRI2" because it had to be changed from the original API when DRI2 was introduced. However, that wasn't necessary for DRI3. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
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