Screen brightness flickering

[Nemanja Kondic]

Im using ubuntu 11.10 64x on Lenovo G570 graphic card is Radeon HD6300 Series i experienced annoying screen flickering after screen goes to sleep or after i suspend it its like flickering between two different brightness levels i should mention that im using ubuntu dual boot my second operating system is windows 7 64x and when flickering starts on ubuntu i continues to happen on bios and on windows flickering stops after i shut down my lap top for 15min or more and it reapers after screen goes into sleep mode i installed proprietary drivers and it did nothing the system actually works better without proprietary drivers...

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

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[Fabio Marconi (fabiomarconi)]

Hello
This sound only like or a serious damage in your video card or consumption of the back lamps, because if you switch off your pc and after one minute the problem is present again mean only that.
Linux don't touch the bios, it's only readable.
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Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

[Andrew Thornton (art27)]

Actually, this _is_ a driver problem. It went away at some point in the 11.10 cycle but is back again with a vengeance in the 12.04 cycle. To those who dismiss this as a problem with the hardware, it really isn't. Something is being set within the graphics card that is causing this.