When suspended in battery mode and resumed in A/C power mode, the laptop display brightness is low

[Amit Tendulkar]

Steps to reproduce,

- Disconnect the AC power cord
- Notice that the display brightness is reduced as the laptop is running on battery
- Put the laptop to a suspend mode
- Now connect the AC power cord and notice that the battery starts charging (indicated by battery LED)
- Resume the laptop (using the power button)
- Notice that the icon in notification area is showing that the laptop is on AC power and the battery is charging. However, the display brightness is low (as in battery mode)
- The workaround for this is to disconnect the power cord and connect it again after resume

Notes:
- This is a regression bug (not present in Gutsy Gibon).
- My laptop model is: HP Compaq nx6120
- uname -a output,
Linux lap432 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686 GNU/Linux
- Currently running OS is Hardy Heron

[Pedro Villavicencio (pedro)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering is this still an issue for you? Could you try to reproduce the same with Ubuntu 9.04 or 8.10? Thanks in advance.

[Amit Tendulkar (amit-tendulkar-gmail)]

The bug is still reproducible in 8.10

$ uname -a
Linux lap432 2.6.27-11-generic #1 SMP Thu Jan 29 19:24:39 UTC 2009 i686 GNU/Linux

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 8.10
Release: 8.10
Codename: intrepid

[Pedro Villavicencio (pedro)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. Could you please attach the resulting log file of: /usr/share/gnome-power-manager/gnome-power-bugreport &> gpm.log to the report? You might also want to take a look to the Debugging instructions located at https://wiki.ubuntu.com/DebuggingGNOMEPowerManager for submit any other logs related to your problem.Thanks in advance.

[Amit Tendulkar (amit-tendulkar-gmail)]

Unfortunately I had to shift to Windows on my company laptop. So there is no way I can verify this at the moment. I upgraded my desktop on line to Jaunty so don't have the latest livecd to check with the laptop. I believe this should not be hardware specific. So somebody with Ubuntu on laptop should post a comment here.

[Pedro Villavicencio (pedro)]

closing the bug then, thanks.