I can't see where Xorg crashed, but it looks like your kernel graphics driver also crashed at about the same time. Can you collect more from around this time in your system log?
Mar 26 12:21:08 anna-yoga kernel: RDX: 0000000000000000 RSI: 00007fdb0f0f8441 RDI: 0000000000000018 Mar 26 12:21:08 anna-yoga kernel: RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000011 Mar 26 12:21:08 anna-yoga kernel: R10: 0000000000000018 R11: 0000000000000246 R12: 00007fdb0f0f8441 Mar 26 12:21:08 anna-yoga kernel: R13: 00005642fef3dbe0 R14: 00005642fef3da80 R15: 00005642fef465b0 Mar 26 12:21:08 anna-yoga kernel: </TASK> Mar 26 12:21:08 anna-yoga kernel: ---[ end trace 0000000000000000 ]--- Mar 26 12:21:08 anna-yoga kernel: i915 0000:04:00.0: [drm] *ERROR* Writing dc state to 0x1 failed, now 0x0 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/2012832 Title: Xorg crashes on second and next unbind operations of Arc GPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/2012832/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
