[Bug 208589] New: amdgpu screen corruption with DRI_PRIME on external monitor at resolution 2560x1440 and more then 60hz

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=208589

            Bug ID: 208589
           Summary: amdgpu screen corruption with DRI_PRIME on external
                    monitor at resolution 2560x1440 and more then 60hz
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.8.0-rc5
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: dani at rodler-keller.de
        Regression: No

Created attachment 290323
  --> https://bugzilla.kernel.org/attachment.cgi?id=290323&action=edit
dmesg

On my Dell Inc. G5 5505 I get screen corruption if I use a resolution of
2560x1440 and more than 60HZ while using the dedicated AMD Radeon RX 5600M and
an external monitor.

On the built in Laptop screen everything runs at 1920x1080 and 144 Hz without
screen corruption.

Monitor: Iiyama XUB2792QSU connected with Displayport

CPU Brand:  AMD Ryzen 7 4800H with Radeon Graphics   

Operating System Version:
    "Arch Linux" (64 bit)
    Kernel Name:  Linux
    Kernel Version:  5.8.0-rc5-1-mainline
    Window Manager:  GNOME Shell (Wayland)

DRI_PRIME=1 glxinfo

Device: AMD Radeon RX 5600M (NAVI10, DRM 3.38.0, 5.8.0-rc5-1-mainline, LLVM
10.0.0) (0x731f)
    Version: 20.1.3

DRI_PRIME=0 glxinfo

    Device: AMD RENOIR (DRM 3.38.0, 5.8.0-rc5-1-mainline, LLVM 10.0.0) (0x1636)
    Version: 20.1.3

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