I uninstalled the 3 modules mentioned from kernel 4.4 and it didn't solve the problem.
"uname -a" command result: Linux debian 4.4.0-0.bpo.1-amd64 #1 SMP Debian 4.4.6-1~bpo8+1 (2016-03-20) x86_64 GNU/Linux "dkms status" command result: bbswitch, 0.8, 3.16.0-4-amd64, x86_64: installed bbswitch, 0.8, 4.3.0-0.bpo.1-amd64, x86_64: installed nvidia-current, 352.79, 3.16.0-4-amd64, x86_64: installed nvidia-current, 352.79, 4.3.0-0.bpo.1-amd64, x86_64: installed virtualbox, 5.0.16, 3.16.0-4-amd64, x86_64: installed virtualbox, 5.0.16, 4.3.0-0.bpo.1-amd64, x86_64: installed 2016-03-30 16:50 GMT-03:00 Ben Hutchings <b...@decadent.org.uk>: > Control: tag -1 moreinfo > > On Wed, 2016-03-30 at 14:14 -0300, Leonardo Santana Vieira wrote: > > Package: src:linux > > Version: 4.4.6-1~bpo8+1 > > Severity: important > > > > Dear Maintainer, > > > > After kernel upgrade, changing brightness takes some seconds and causes > system > > slowdown if i try to change more than one level at a time. This problem > does > > not happen in the other kernel packages i have installed(3.16, 4.3). I'm > using > > Gnome desktop, the problem happens when i try the change through the > menu at > > the top bar and especially if i try using fn keys to do it. If a hold > fn+f5 or > > f6 all the way to minimum or maximum, the action causes severe slowdown > in the > > system making it unusable for some time. I have theses modules installed > in all > > the kernel packages as can be seen below the result of "dkms status" > command. > > > > bbswitch, 0.8, 3.16.0-4-amd64, x86_64: installed > > bbswitch, 0.8, 4.3.0-0.bpo.1-amd64, x86_64: installed > > bbswitch, 0.8, 4.4.0-0.bpo.1-amd64, x86_64: installed > > nvidia-current, 352.79, 3.16.0-4-amd64, x86_64: installed > > nvidia-current, 352.79, 4.3.0-0.bpo.1-amd64, x86_64: installed > > nvidia-current, 352.79, 4.4.0-0.bpo.1-amd64, x86_64: installed > > virtualbox, 5.0.16, 3.16.0-4-amd64, x86_64: installed > > virtualbox, 5.0.16, 4.3.0-0.bpo.1-amd64, x86_64: installed > > virtualbox, 5.0.16, 4.4.0-0.bpo.1-amd64, x86_64: installed > [...] > > Please test without these modules installed. > > Ben. > > -- > Ben Hutchings > Tomorrow will be cancelled due to lack of interest.
