Comment 21 for bug 1776642

Under 4.18-rc3 from http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18-rc3/ the symptoms appear identical to those under 4.15.0-25-generic.

I tested mainline 4.17, 4.17.2, 4.17.3, 4.17.4 and 4.18-rc2 from the kernel.ubuntu.com, which all displayed the original symptoms reported for this bug.

Correction/clarification: Previously, I failed to test whether the temporal dithering appeared in virtual consoles under 4.13.0-41. I only tested to see whether it affected virtual consoles on kernels where it also affected X. It turns out that the dithering has always been present in virtual consoles at least as far back as 4.13.0-31, but it did not appear under X until 4.13.0-43. I will amend the bug description to reflect this.

The issue with semi-transparent backgrounds in Plasma widgets may be unrelated, as this is now appearing under all kernels I've tried booting.