Random stripes and dots

[Randy Tang]

Ubuntu 18.04 LTS.

Random stripes and dots appear on some texts. It happens on various applications. See the attached (an example of Rhythmbox).

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1767162/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Randy Tang (yltang52)]

Bug reports requires the "Package" information. So, here it goes. But the bug is not limited to "rhythmbox," it is a general bug to Ubuntu 18.04 LTS.

[Randy Tang (yltang52)]

Still no solution?

[Sebastien Bacher (seb128)]

It's not specific to rhythmbox, reassigning to gtk but it might be freetype or something else in the stack. Could you add your journalctl log just after seeing the issue?
What videocard/driver do you use? Do you get the problem at random time or maybe sometime after suspend/resume for example?

[Randy Tang (yltang52)]

$ sudo lshw -c video
  *-display
       description: VGA compatible controller
       product: Richland [Radeon HD 8570D]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 1
       bus info: pci@0000:00:01.0
       version: 00
       width: 32 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:26 memory:c0000000-cfffffff ioport:f000(size=256) memory:fef00000-fef3ffff memory:c0000-dffff

Output of journalctl is also attached.