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Ryzen 3 2200G with Radeon Vega 8 has screen tearing while watching PVR (MythTV)

Question asked by donb21 on Aug 18, 2019
Latest reply on Aug 19, 2019 by donb21

I've experiencing screen tearing of pretty much everything I watch.  System is Ubuntu-Mate, 18.04, updated to latest.  TV is Sony XBR-55x900E (4K).  Display information is: 


don@johnny:~$ sudo lshw -C display
description: VGA compatible controller
product: Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:06:00.0
version: c8
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi msix vga_controller bus_master cap_list rom
configuration: driver=amdgpu latency=0
resources: irq:51 memory:e0000000-efffffff memory:f0000000-f01fffff ioport:e000(size=256) memory:fe600000-fe67ffff memory:c0000-dffff


Any help appreciated,