Comment # 6
on bug 98897
from Tom B
dmesg and xorg attached. Yes, this has dual GPUs, an onboard intel on the i7 4870HQ and a Radeon M370X. lspci | grep VGA output: 00:02.0 VGA compatible controller: Intel Corporation Crystal Well Integrated Graphics Controller (rev 08) 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Venus XT [Radeon HD 8870M / R9 M270X/M370X] (rev 83) glxinfo | grep OpenGL output: OpenGL vendor string: X.Org OpenGL renderer string: Gallium 0.4 on AMD CAPE VERDE (DRM 2.46.0 / 4.8.10-1-ARCH, LLVM 3.9.0) OpenGL core profile version string: 4.3 (Core Profile) Mesa 13.0.1 OpenGL core profile shading language version string: 4.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 13.0.1 OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.1 Mesa 13.0.1 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10 OpenGL ES profile extensions: The Radeon card is in use. I can switch to the intel card using the gpu-switch utility ( https://aur.archlinux.org/packages/gpu-switch/ ) but the external ports HDMI and DP are connected to the radeon card, and I need to use external monitors frequently. When the intel gpu is used, there is no flicker issue.
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