Ubuntu
gnome-power-manager package

  1. Bug #527157
  2. Comment #45

Comment 45 for bug 527157

Revision history for this message
Chas Emerick (chas-d) wrote :

This bug seems to have gone stale (again?), but I'd like to report that it affects me with:

* 13.10, fully updated
* Thinkpad T440p (FHD panel, if that matters)

Using the slider in Settings > Brightness & Lock, it seems that there is ~15 brightness levels (it's hard to get an exact count, since each level is pretty subtle, and the mechanics of manipulating the slider aren't the most precise). However, using the screen brightness "media" keys (doubling as F5 and F6), I can distinguish between only 4 brightness levels. Each press of these keys pops up the brightness overlay/notification in the upper-right, and the bar there changes properly, but the actual screen brightness changes in a step function, rather than linearly.