I can confirm bug fix with new packages from ppa.
After upgrade only two packages
xserver-xorg-video-amdgpu-hwe-18.04:amd64 from 19.0.1-1~18.04.1 to 19.0.1-1ubuntu1~18.04.1
and
xserver-xorg-video-ati-hwe-18.04:amd64 from 1:19.0.1-0ubuntu1~18.04.1 to 1:19.0.1-1ubuntu1~18.04.1
bug still reproduced.
But after upgrade two more packages
xserver-xorg-video-radeon-hwe-18.04:amd64 from 1:19.0.1-0ubuntu1~18.04.1 to 1:19.0.1-1ubuntu1~18.04.1
and
error still reproduced from 2:1.19.6-1ubuntu4.3 to 2:1.19.6-1ubuntu4.4~ppa1
I can confirm bug fix with new packages from ppa. xorg-video- amdgpu- hwe-18. 04:amd64 from 19.0.1-1~18.04.1 to 19.0.1- 1ubuntu1~ 18.04.1 xorg-video- ati-hwe- 18.04:amd64 from 1:19.0. 1-0ubuntu1~ 18.04.1 to 1:19.0. 1-1ubuntu1~ 18.04.1
After upgrade only two packages
xserver-
and
xserver-
bug still reproduced.
But after upgrade two more packages xorg-video- radeon- hwe-18. 04:amd64 from 1:19.0. 1-0ubuntu1~ 18.04.1 to 1:19.0. 1-1ubuntu1~ 18.04.1 6-1ubuntu4. 4~ppa1
xserver-
and
error still reproduced from 2:1.19.6-1ubuntu4.3 to 2:1.19.
bug is gone! Thanks!