[Bug 203471] New: Tearing on Raven Ridge and RX560X PRIME setup even with Vsync enabled

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=203471

            Bug ID: 203471
           Summary: Tearing on Raven Ridge and RX560X PRIME setup even
                    with Vsync enabled
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.1 rc6
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: haxk612 at gmail.com
        Regression: No

I have Acer Nitro 5 AN515-42 with Ryzen 5 2500U and RX560X.
When i launch some game with DRI_PRIME=1 to have it on dGPU there is huge
tearing on top of the screen that is there with or without Vsync.
If i launch the game on iGPU there is no tearing at all.
Also the tearing happens only when the game is in fullscreen.
If i take a screenshot there is no tearing in the screenshot.
And i cannot post a picture as my phone camera is broken in my latest build of
android.
I have tried 5.2-wip branch and there is the same issue.
Will post dmesg and journalctl in few hours.

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