Hi Alan,
On 24 April 2014 09:49, Alan Pope <[email protected]> wrote: > Hi Tony, > > On 23 April 2014 23:43, Tony Pursell <[email protected]> wrote: > > Can someone tell me what package I should be reporting my screen > brightness > > control problem against. I reported it against linux with the result > that I > > am being asked to test it against the latest upstream kernel. Something > I > > would rather not get involved in, if it's not necessary, as its a bit > beyond > > my technical capabilities. For details of the bug, see > > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1311297 > > > > You filed the bug in the right place, and you're being asked for > legitimate debug data as a result. Moving the bug somewhere else won't > get it fixed :) > > So, what you need to do in simple terms is:- > > 1. Identify and download a kernel build > 2. Install the kernel > 3. Reboot into the new kernel > 4. Test while running the new kernel > 5. Clean up. > > For 1:- > > mkdir ~/kernel_test > cd ~/kernel_test > wget > http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-rc2-trusty/linux-headers-3.15.0-031500rc2-generic_3.15.0-031500rc2.201404201435_i386.deb > wget > http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-rc2-trusty/linux-headers-3.15.0-031500rc2_3.15.0-031500rc2.201404201435_all.deb > wget > http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-rc2-trusty/linux-image-3.15.0-031500rc2-generic_3.15.0-031500rc2.201404201435_i386.deb > > For 2:- > > cd ~/kernel_test > sudo dpkg -i *.deb > > For 3:- > > Close all your applications and reboot. > Hold down the shift key as soon as the computer powers up, to get the grub > menu. > When you see the grub menu, use the arrow keys to highlight the > 3.15-rc2 kernel and then press [enter[ to boot from it. > > For 4:- > > Test using the brightness keys > Report back on the bug if it's working or not. > > For 5:- > > Reboot back to your old kernel using the same method as step 3:- but > boot to the old one, not the new one > sudo apt-get remove linux-headers-3.15.0-031500rc2-generic > linux-headers-3.15.0-031500rc2 linux-image-3.15.0-031500rc2-generic > rm -rf ~/kernel_test > > Done. > > Hope that's helpful > > Cheers, > Al. > > -- > Thanks a lot for these instructions. I'm sure that if the kernel team could be as helpful they would get more people like me, who just need a little bit more hand holding, helping them with their bugs. I'm a total user of Ubuntu (at home) now and would love to see it replace Microsoft but a regression bug, like this one, in a LTS release really shouldn't happen. It is fixed in the mainline 3.15.0 kernel but I cannot continue to use it as doesn't build with my wireless driver. I hope it will get into Trusty some time. Thanks again Tony
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