[Bug 101691] gfx corruption on windowed 3d-apps running on dGPU

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101691

--- Comment #63 from Ethan Hsieh <ethan.hsieh at canonical.com> ---
Here is the command I used for test.
I tested with patched mesa 17.4.

$ DRI_PRIME=1 glxgears -info
GL_RENDERER   = AMD ICELAND (DRM 3.9.0 / 4.4.0-98-generic, LLVM 6.0.0)
GL_VERSION    = 3.0 Mesa 17.4.0-devel - padoka PPA
GL_VENDOR     = X.Org

I still can reproduce the issue with mesa 17.4 + latest patch.
Patch: https://patchwork.freedesktop.org/series/33162/ 
Mesa 17.4 (1:17.4~git171104221700.608af05~x~padoka0):
https://launchpad.net/~paulo-miguel-dias/+archive/ubuntu/mesa

Test Result:
1. 4.4.0-98 + mesa 17.4: Failed
2. 4.4.0-98 + patched mesa 17.4: Failed 
3. 4.14.0-041400rc8 + patched mesa 17.4: Failed 

Test Environment:
Ubuntu 16.04 (xenial)

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