[Bug 1727662]

I'm happy to report that I've not had a single problem since I installed 5.4.0-rc7-drm-tip-git-g3ff71899c56c. I'm marking this as resolved, with thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1727662]

Created attachment 144595 New dmesg 2019-06-19 running drm-tip James, the issue persists running drm-tip as of today. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: [Lenovo ThinkPad

[Bug 1727662]

I've just built the drm-tip kernel. Will test this for a few days and report back. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: [Lenovo ThinkPad T450s] Issues after docking and

[Bug 1727662]

I've now verified that the error still occurs with or without that command issued, especially when coming back from suspend. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: [Lenovo

[Bug 1727662]

Hi Anshuman, 1. Is this issue is seen when u connect a external display directly to laptop without dock? It happens more frequently (it seems) when connected through a dock, but it also happens when using a cable directly to the laptop. 2. Have u screen the display tear issue on embedder panel

[Bug 1727662]

I've done some additional testing, and after issuing 'echo "2 0 0 0 0 0 0 0" > /sys/kernel/debug/dri/0/i915_pri_wm_latency' I ran for over 2 hours without any freeze, and I tried to provoke the error by switching resolution and screen layout several times. -- You received this bug notification

[Bug 1727662]

Would appreciate feedback on the data given, if more is needed or if a separate bug report should be filed. Thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: [Lenovo ThinkPad

[Bug 1727662]

Created attachment 143608 Video showing the screen -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727662 Title: [Lenovo ThinkPad T450s] Issues after docking and locking:

[Bug 1727662]

Created attachment 143607 dmesg Here is my dmesg output with the requested parameters. I'm now running the 5.0.0 kernel with the same behavior. The trigger is sometimes a xrandr change, but almost always coming back from suspend. Reboot is necessary. -- You received this bug notification