Unfortunately, the full logs are too long to be posted in this fourm. Here some of the Errors in the dmseg log are provided:
[ 784.530046] amdgpu 0000:0a:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring comp_1.0.1 test failed (-110)
[ 784.737907] amdgpu 0000:0a:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring comp_1.0.2 test failed (-110)
[ 784.945710] amdgpu 0000:0a:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring comp_1.0.3 test failed (-110)
[ 785.153472] amdgpu 0000:0a:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring comp_1.0.4 test failed (-110)
[ 785.361276] amdgpu 0000:0a:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring comp_1.0.5 test failed (-110)
[ 785.570167] amdgpu 0000:0a:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring comp_1.0.6 test failed (-110)
[ 785.779528] amdgpu 0000:0a:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring comp_1.0.7 test failed (-110)
[ 786.790996] amdgpu 0000:0a:00.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* IB test failed on comp_1.0.0 (-110).
[ 786.791723] [drm:process_one_work] *ERROR* ib ring test failed (-110).
I don't know what I should be looking for in the Xorg log. Here is some parts of the Xorg.0.log:
[ 792.040] X.Org Video Driver: 25.2
[ 792.049] Module class: X.Org Video Driver
[ 792.049] ABI class: X.Org Video Driver, version 25.2
[ 792.493] (II) Initializing extension XVideo
[ 792.493] (II) Initializing extension XVideo-MotionCompensation
[ 792.590] (II) config/udev: Adding input device Video Bus (/dev/input/event4)
[ 792.590] (**) Video Bus: Applying InputClass "libinput keyboard catchall"
[ 792.590] (II) Using input driver 'libinput' for 'Video Bus'
[ 792.590] (**) Video Bus: always reports core events
[ 792.591] (II) event4 - Video Bus: is tagged by udev as: Keyboard
[ 792.591] (II) event4 - Video Bus: device is a keyboard
[ 792.592] (II) event4 - Video Bus: device removed
[ 792.592] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD, id 7)
[ 792.592] (II) event4 - Video Bus: is tagged by udev as: Keyboard
[ 792.593] (II) event4 - Video Bus: device is a keyboard
[ 792.593] (II) config/udev: Adding input device Video Bus (/dev/input/event5)
[ 792.593] (**) Video Bus: Applying InputClass "libinput keyboard catchall"
[ 792.593] (II) Using input driver 'libinput' for 'Video Bus'
[ 792.594] (**) Video Bus: always reports core events
[ 792.595] (II) event5 - Video Bus: is tagged by udev as: Keyboard
[ 792.595] (II) event5 - Video Bus: device is a keyboard
[ 792.595] (II) event5 - Video Bus: device removed
[ 792.595] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD, id 8)
[ 792.597] (II) event5 - Video Bus: is tagged by udev as: Keyboard
[ 792.597] (II) event5 - Video Bus: device is a keyboard
[ 792.040] (**) | |-->Device "Intel Graphics"
[ 792.091] (II) modeset(0): glamor X acceleration enabled on Mesa Intel(R) HD Graphics 5500 (BDW GT2)
[ 792.601] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=3 (/dev/input/event10)
[ 792.602] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=7 (/dev/input/event11)
[ 792.602] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=8 (/dev/input/event12)
[ 792.602] (II) config/udev: Adding input device HDA Intel PCH Mic (/dev/input/event13)
[ 792.603] (II) config/udev: Adding input device HDA Intel PCH Headphone (/dev/input/event14)
[ 792.117] (II) Applying OutputClass "AMDgpu" options to /dev/dri/card2