I confirm this bug on an Eee PC 1005HA. The display dimming behavior on battery power seems unpredictable (sometimes it dims after a few seconds idle, sometimes much longer), and when the computer is active again (e.g. by touching the keyboard/trackpad) the display returns to its "default" brightness, rather than the brightness to which I had previously set it. The default brightness is generally brighter than is needed for indoor viewing, and therefore drains the battery faster, so I am continually forced to re-lower the brightness after every time it dims.
I confirm this bug on an Eee PC 1005HA. The display dimming behavior on battery power seems unpredictable (sometimes it dims after a few seconds idle, sometimes much longer), and when the computer is active again (e.g. by touching the keyboard/trackpad) the display returns to its "default" brightness, rather than the brightness to which I had previously set it. The default brightness is generally brighter than is needed for indoor viewing, and therefore drains the battery faster, so I am continually forced to re-lower the brightness after every time it dims.