I get corrupted icons in Gnome's top panel (specifically the Quake and Dropbox icons (I use the topicons-plus Gnome extension)).
I also get corrupted tooltips in Firefox, e.g., hovering my mouse over my account circle in GMail produces corruption similar to the screenshot shown on this bug.
As suggested by OP, downgrading xorg made the problem go away:
$ glxinfo -B
name of display: :0
display: :0 screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
Vendor: X.Org (0x1002)
Device: AMD TURKS (DRM 2.50.0 / 5.1.15-300.fc30.x86_64, LLVM 8.0.0) (0x6740)
Version: 19.0.8
Accelerated: yes
Video memory: 1024MB
Unified memory: no
Preferred profile: core (0x1)
Max core profile version: 3.3
Max compat profile version: 3.1
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.1
...
Corruption happens to me on Gnome on Fedora 30 after the update from:
xorg-x11- server- Xorg-1. 20.4-3. fc30 server- common- 1.20.4- 3.fc30. x86_64
xorg-x11-
to:
xorg-x11- server- Xorg-1. 20.5-3. fc30.x86_ 64 server- common- 1.20.5- 3.fc30. x86_64
xorg-x11-
I get corrupted icons in Gnome's top panel (specifically the Quake and Dropbox icons (I use the topicons-plus Gnome extension)).
I also get corrupted tooltips in Firefox, e.g., hovering my mouse over my account circle in GMail produces corruption similar to the screenshot shown on this bug.
As suggested by OP, downgrading xorg made the problem go away:
$ glxinfo -B query_renderer) : 300.fc30. x86_64, LLVM 8.0.0) (0x6740)
name of display: :0
display: :0 screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_
Vendor: X.Org (0x1002)
Device: AMD TURKS (DRM 2.50.0 / 5.1.15-
Version: 19.0.8
Accelerated: yes
Video memory: 1024MB
Unified memory: no
Preferred profile: core (0x1)
Max core profile version: 3.3
Max compat profile version: 3.1
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.1
...
A comment on a different bug describes a similar problem, and he has an AMD card as well: /bugzilla. redhat. com/show_ bug.cgi? id=1726419# c1
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