Comment 10 for bug 1893579

@Geziel: well, Ubuntu 20.10 *is* a development version, so you expect some bugs. It is normally more usable at this stage of the development cycle, though.

FWIW, I ran evtest, and the keys are mostly being reported the same in groovy and focal - they just don't work in groovy. eg the function keys all report their expected values (eg KEY_VOLUMEDOWN, KEY_VOLUMEUP, KEY_MUTE), with the exception of the brightness up/down keys, which aren't reported in either focal or groovy.

One exception to this is that Alt-PrtScr is reported in groovy as unknown, whereas it's reported in focal as KEY_SYSRQ and KEY_LEFTALT. PrtScr is reported correctly in both as KEY_SYSRQ.

It's still possible to read and change the system brightness in groovy via the kernel, ie on my Dell XPS 15 by catting or echoing an appropriate number to /sys/class/backlight/intel_backlight/brightness, but the function keys don't work and nor does the task bar system menu's dropdown menu slider. The dropdown menu slider is initially set to zero, so it looks like it can't read the brightness, either.