[Bug 89055] [SKL ] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89055

--- Comment #36 from Prasad H L Bhat <hlprasu at gmail.com> ---
Thanks, Matt. You are right that this is not the primary cause for the hanging.
I found out that the freeze issue that is affecting me is -
https://www.reddit.com/r/thinkpad/comments/4ajgjh/t460_suspend_problem_with_linux/


BTW, I noticed that the following when the backtrace as discussed in this bug
occurs on my laptop: When I switch virtual desktops the image of the window in
the previous desktop is shown for some time if the current desktop does not
have any windows. This happened consistently with plasma desktop of KDE 5, I
have not checked others.

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