[Bug 204885] ryzen 2500U cause graphics glitch in all browsers with kernel version 5.2.x+

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=204885

Pierre-Eric Pelloux-Prayer (pierre-eric.pelloux-prayer at amd.com) changed:

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--- Comment #4 from Pierre-Eric Pelloux-Prayer (pierre-eric.pelloux-prayer at amd.com) ---
This bug looks similar to https://bugs.freedesktop.org/show_bug.cgi?id=111122

Could you try the various workarounds proposed there and see if it helps:
  - adding the iommu=pt kernel boot parameter (see
https://wiki.archlinux.org/index.php/kernel_parameters#GRUB)
  - or using the AMD_DEBUG=nodcc environment variable (for instance, try adding
a new line with "AMD_DEBUG=nodcc" in the /etc/environment file and reboot)
  - or updating Mesa to the latest version

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