Screen tearing with AMD APU on Ubuntu 18.04 and 17.10

[Giovanni]

Hi,
I have two PCs with AMD hardware: a desktop with AMD A10-7800 and a laptop with AMD A10-7300, so both with AMD Kaveri APUs.
The operating system is Ubuntu 17.10 x64 both on the desktop and on the laptop.
The good news is that the driver built into Ubuntu works fine. I hope I can improve yet but I am satisfied.
The only problem occurs with the Opera browser: when I display something graphic, for example a video on YouTube or by scrolling the photos, it presents a lot of tearing. With Firefox this problem is not there.
I have already reported this problem to Opera and AMD, but I do not think they have taken into account, because even the latest versions of Opera have screen tearing.
I hope you can solve and work with AMD driver team and Opera because I would like to use that browser, thank you!

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Giovanni (gi9vanni)]

The problem is also present on Ubuntu 18.04 x64.

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 1745418

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Launchpad Janitor (janitor)]

[Expired for mutter (Ubuntu) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for mesa (Ubuntu) because there has been no activity for 60 days.]