It appears the problem started in the RADEON driver and then Xorg crashed:
[ 186.951] (EE) RADEON(0): drmmode_do_crtc_dpms cannot get last vblank counter [ 186.958] (II) RADEON(0): Allocate new frame buffer 1080x1920 [ 186.963] (II) RADEON(0): VRAM usage limit set to 218116K [ 186.965] (EE) [ 186.965] (EE) Backtrace: [ 186.966] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x139) [0x563b05a0d2b9] [ 186.967] (EE) 1: /lib/x86_64-linux-gnu/libc.so.6 (__sigaction+0x50) [0x7f1b91765520] [ 186.968] (EE) 2: ? (?+0x0) [0x0] [ 186.968] (EE) 3: ? (?+0x0) [0x0] [ 186.968] (EE) [ 186.968] (EE) Segmentation fault at address 0x0 [ 186.968] (EE) Fatal server error: [ 186.968] (EE) Caught signal 11 (Segmentation fault). Server aborting [ 186.968] (EE)
It appears the problem started in the RADEON driver and then Xorg crashed:
[ 186.951] (EE) RADEON(0): drmmode_ do_crtc_ dpms cannot get last vblank counter 0x139) [0x563b05a0d2b9] 64-linux- gnu/libc. so.6 (__sigaction+0x50) [0x7f1b91765520]
[ 186.958] (II) RADEON(0): Allocate new frame buffer 1080x1920
[ 186.963] (II) RADEON(0): VRAM usage limit set to 218116K
[ 186.965] (EE)
[ 186.965] (EE) Backtrace:
[ 186.966] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+
[ 186.967] (EE) 1: /lib/x86_
[ 186.968] (EE) 2: ? (?+0x0) [0x0]
[ 186.968] (EE) 3: ? (?+0x0) [0x0]
[ 186.968] (EE)
[ 186.968] (EE) Segmentation fault at address 0x0
[ 186.968] (EE)
Fatal server error:
[ 186.968] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 186.968] (EE)