https://bugs.freedesktop.org/show_bug.cgi?id=100109 Bug ID: 100109 Summary: Graphics Lockup if monitor disconnected and then set into standby Product: DRI Version: XOrg git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu-pro Assignee: dri-devel@lists.freedesktop.org Reporter: kierangrant@linux.com Created attachment 130119 --> https://bugs.freedesktop.org/attachment.cgi?id=130119&action=edit Various log files I got a Kernel Oops from with AMDGPU-PRO for Ubuntu 16.04.2 LTS x86-64 version 16.60 after unplugging and plugging in my HDMI display... Computer was left on overnight to do some long IO operation... before I left it, I turned monitor off... at the time my MATE display settings was to put monitor to sleep after 30 minutes... so I guess it tried that after 30 minutes... Next day... I got no graphics response... after trying various F-n combos... I eventually tried some SysRq keys to force text console... but stock Ubuntu SysRq limit was in effect *doh*... That is when as a last resort thought to unplug and re-plug in monitor... in hopes that would magically do something... it did something alright... I got Kernel OOPS at that moment... it was early morning for me :| Attached is a snippet of my syslog plus various ls* outputs... I have a MSI Radeon RX480 8GB I will see if I can manually reproduce the bug to get a Xorg.log file... I forgot that one and old one is now gone :/ -- You are receiving this mail because: You are the assignee for the bug.