I built a new computer and am now getting weird graphics glitches when browsing the web or streaming video in a browser.
https://i.imgur.com/hJJm5aY.png
https://i.imgur.com/X74isqn.png
https://i.imgur.com/2ka12zm.mp4 (this one isn't mine, but similar to what is happening to me)
My setup:
Ryzen 5 3400G processor with integrated graphics
Gigabyte B450M DS3H motherboard (BIOS is updated with latest firmware), 16GB (2x8GB) DDR4 3200
Connected to Samsung Q70R QLED Smart 4K TV (old computer and HDMI cable worked fine with this TV)
I have tried many of the fixes that I found searching online, but none of them seem to completely fix the problem. I have tried fresh installs of the latest Ubuntu 18.04 and 20.04 versions. I have tried a couple methods of updating or changing the kernel versions. Changing resolutions, refresh rates, or scaling does not fix the issue.
Current configuration after fresh 20.04 install:
lsb_release -a
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal
uname -a
Linux media-server 5.4.0-29-generic #33-Ubuntu SMP Wed Apr 29 14:32:27 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
lspci | grep VGA
07:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev c8)
sudo lshw -c video
*-display
description: VGA compatible controller
product: Picasso
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:07:00.0
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:101 memory:e0000000-efffffff memory:f0000000-f01fffff ioport:e000(size=256) memory:fcb00000-fcb7ffff memory:c0000-dffff
