I have managed to get a solution for this issue by following the below
steps
Scenario 1:
1. Set intel to UXA mode and activate radeon DRI3 using the below xorg.conf
settings
2. Restart mdm by login out and loggin in again (I have experience very slow
rendering login page - Linux mint)
3. Issue command: DRI_PRIME=1 glxinfo|grep "OpenGL"( you will see the Radeon
renderer active)
4. Issue command: DRI_PRIME=1 cairo_dock& (cairo starts without problems)
PS: grub kernel were left its distro's default settings.
Section "Device"
Identifier "Radeon"
Driver "intel"
Option "AccelMethod" "UXA"
Option "SwapbuffersWait" "false"
Option "VSync" "false"
Option "DRI" "3"
EndSection
Section "Device"
Identifier "Radeon"
Driver "radeon"
Option "SwapbuffersWait" "false"
Option "TearFree" "false"
Option "DRI" "3"
EndSection
Scenario 2:
=======================
1. Set intel to SNA mode and activate radeon DRI3
2. Restart mdm by login out and loggin in again (screen rendering is fast)
3. Issue command: DRI_PRIME=1 glxinfo|grep "OpenGL"( I can only see the Intel
tenderer)
4. Issue command: DRI_PRIME=1 cairo_dock& (cairo starts without problems)
I hope this helps
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https://bugs.launchpad.net/bugs/1581270
Title:
Hybrid Graphics: [drm:si_resume [radeon]] *ERROR* si startup failed on
resume
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