Mesa 12.0.4 Being Prepped For Ubuntu 16.10/16.04

[bridgman]

I don't understand the question - can you add some more detail please ?

AFAIK only proprietary drivers are supporting compatibility profiles today; Mesa can *report* a compatibility profile via over-ride but mixing of deprecated and new GL functions is not actually supported.

[Azrael5]

I don't understand the question - can you add some more detail please ?

AFAIK only proprietary drivers are supporting compatibility profiles today; Mesa can *report* a compatibility profile via over-ride but mixing of deprecated and new GL functions is not actually supported.

I can get 3.3 opengl on Fedora od opensuse while I get only 3.0 opengl on Kubuntu or Lubuntu (ubuntu) operating systems. This happens because Mesa on fedora or opensuse enable core profile instead of compatibility profile over Mesa drivers (perhaps because of DRM or other reasons). I'm using HD3850 AMD card which is state duspporting 3.3 opengl features also over XP Sp3 operating system detected by GPU CAPS VIEWER utility.

[Azrael5]

this is the gpu issue by Chrome on fedora.
Version Information

Data exported	4/12/2016, 12:25:33
Chrome version	Chrome/55.0.2883.75
Operating system	Linux 4.8.10-300.fc25.x86_64
Software rendering list version	11.17
Driver bug list version	9.15
ANGLE commit id	4d208abb1926
2D graphics backend	Skia/55 d1740f81c843c65acd58d1b571ce94b90fee99d0
Command Line Args	--flag-switches-begin --enable-gpu-rasterization --enable-icon-ntp --num-raster-threads=4 --enable-overlay-scrollbar --flag-switches-end

Driver Information

Initialization time	327
In-process GPU	false
Sandboxed	false
GPU0	VENDOR = 0x1002, DEVICE= 0x9505
Optimus	false
AMD switchable	false
Driver vendor	Mesa
Driver version	12.0.3
Driver date
Pixel shader version	3.30
Vertex shader version	3.30
Max. MSAA samples	8
Machine model name
Machine model version
GL_VENDOR	X.Org
GL_RENDERER	Gallium 0.4 on AMD RV670 (DRM 2.46.0 / 4.8.10-300.fc25.x86_64, LLVM 3.8.0)
GL_VERSION	3.3 (Core Profile) Mesa 12.0.3

[Azrael5]

these are the information of chrome on Kubuntu. As you can see opengl stuck to 1.30 because of "compatiiblity profile" on mesa. Besides both pixel or vertex shaders get a low level release in confront of CORE PROFILE which get the 3.30 value

Data exported	4/12/2016, 12:44:40
Chrome version	Chrome/53.0.2785.143
Operating system	Linux 4.8.0-28-generic
Software rendering list version	11.7
Driver bug list version	8.93
ANGLE commit id	unknown hash
2D graphics backend	Skia
Command Line Args	--enable-pinch --window-depth=24 --x11-visual-id=33 --wm-user-time-ms=153639 --flag-switches-begin --enable-gpu-rasterization --num-raster-threads=4 --enable-overlay-scrollbar --flag-switches-end

Driver Information

Initialization time	198
In-process GPU	false
Sandboxed	false
GPU0	VENDOR = 0x1002, DEVICE= 0x9515
Optimus	false
AMD switchable	false
Driver vendor	Mesa
Driver version	12.0.3
Driver date
Pixel shader version	1.30
Vertex shader version	1.30
Max. MSAA samples	8
Machine model name
Machine model version
GL_VENDOR	X.Org
GL_RENDERER	Gallium 0.4 on AMD RV670 (DRM 2.46.0 / 4.8.0-28-generic, LLVM 3.8.1)
GL_VERSION	3.0 Mesa 12.0.3

[dungeon]

Try for the first maybe to use same versions of browser and not different... that is the way to bisect an issue, if it exists

[dungeon]

Just checked out with Firefox also on Debian, so yeah it pick up compatability profile there as info both with mesa or with fglrx (probably no one care there as on blob 4.5 is on both ).

Azrael5 Does your glxinfo on Fedora also say 3.3?

[Azrael5]

Azrael5 Does your glxinfo on Fedora also say 3.3?

YEs it says 3.30. iglxinfo states 3.30 core profile on both the operating systems. So ubuntu and its variations stuck into 3.0 compatibility profile despite of Fedora and Opensuse which take benefit from "core profile" by the same MESA release. So it could depend on the DRM driver or other KERNEL stuff.

[dungeon]

YEs it says 3.30.

Well, that is root of the "prob" AFAIK it should be 3.0, unless user do something like forcing MESA_GL_VERSION_OVERRIDE=3.3COMPAT

[Azrael5]

Try for the first maybe to use same versions of browser and not different... that is the way to bisect an issue, if it exists

My opinion is that an issues as problem doesn't exist: the only evidence is that while ubuntu systems use mesa compatibility profile, Opensuse and Fedora benefit of the "core profile". so the last mentioned can optimize my hardware better than ubuntu releases.

[Azrael5]

Well, that is root of the "prob" AFAIK it should be 3.0, unless user do something like forcing MESA_GL_VERSION_OVERRIDE=3.3COMPAT

3.3 is not the prob it's the best because my hardware support up to 3.3 opengl as stated on microsoft operating system or by several online bench. So Fedora and Opensuse are the operating systems which really optimize my VGA while Ubunutu is not able although provided by the same kernell and the same mesa drivers.