screen brightness blinking on MSI VR420 notebook

[Kostya Pakhomov]

Binary package hint: gnome-power-manager

When I try to change the brightness, screen constantly flashes during ten or fifteen minutes.
Notebook MSI VR420 with latest BIOS 1.03.

[Laszlo Kupcsik (koopac)]

I think I have the same or very similar problem. When using the netbook from battery, and it tries to switch back to energy saving mode the screen brightness rapidly changes between thje original and energy saving levels. during 10-15s. In this period, it is not possible to use the mouse or keyboard, except for swtiching to terminal. The terminal reported "ACPI: failed to switch brightness"
Which files do you need to address this?

Using natty on a Samsung N150

[Maddev (khulap)]

I have the same issue with Samsung N150. I have installed samsung-tools and samsung-backlight. People discuss the issue in this thread http://www.voria.org/forum/viewtopic.php?t=760 but I doesn't solve it.

[elitsour (elitsour)]

Exactly the same problem as Laszlo with a Samsung 150-Plus

[elitsour (elitsour)]

For the Samsung, the problem seems to come from not updated packages
Hence, some of the depositories are disabled when you upgrade ubuntu.
Have a look here: https://launchpad.net/~voria/+archive/ppa?field.series_filter=natty

And see if the problem persists with the updated packages.

[Dima Melesevich (melby)]

I have similar problem on the desktop. Use MB-Asus Commando, Video - Palit Sonic 4850 512, 2gb DDR2, 1Tb HDD, Q9400. I have screen brightness blinking and in this time +/- 5 second computer freeze.
p.s. sorry for my bad English .

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.