Problem with hybrid graphics.

[towo2099]

Hi,

a have a Lenovo Notebook which contains a FX-7500.
There are 2 graphics devices in:

root@lenovo-nb:/home/towo# lspci | egrep -i "displ|vga"
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri [Radeon R6/R7 Graphics]
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Jet PRO [Radeon R5 M230] (rev ff)

The system is using the Kaveri graphics.

towo:lenovo-nb> glxinfo | grep "OpenGL renderer string"
OpenGL renderer string: Gallium 0.4 on AMD KAVERI

towo:lenovo-nb> xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x86 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 4 outputs: 3 associated providers: 1 name:radeon
Provider 1: id: 0x4f cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 0 outputs: 0 associated providers: 1 name:radeon

both devices are listed.

now i can do:

xrandr --setprovideroffloadsink 0x4f 0x86
towo:lenovo-nb> DRI_PRIME=1 glxinfo | grep "renderer string"
OpenGL renderer string: Gallium 0.4 on AMD HAINAN

It sees the 2nd device.

but

DRI_PRIME=1 glxgears

shows only a black window, but the fps are shown in the terminal, i start from.
I use xfce 4.12 and have tryed 3 different compositors, with all i get the same black window.
xserver is 1.16.4, mesa is 10.6-git and radeon driver is 7.5.0
There are zero errors in the terminal or logfiles.

Any hint to the issue?

[woife]

I have a similar problem with Intel/AMD graphics and DRI_PRIME.
But the window is not black, it is a frozen version of the background.

https://bugs.launchpad.net/ubuntu/+s...g/+bug/1430888

[towo2099]

I have fond my soulutin now.
I have builded the radeon DDX from git with DRI3, now it works as it schould and i don't need the xrandr switch anymore.