serious system slow down when adjusting brightness on a Dell E6440 laptop

I am running Debian unstable with GNOME 3 and MATE 1.8 on a Dell Latitude E6440 laptop. In both, brightness controls (Fn + up/down) systematically put the system to a crawl. This is even more pronounced in MATE 1.8, where the energy saving settings are much more aggressive and keep switching betwee

MATE 1.8: issues with sound control

Following the recent announcement of the availability of MATE 1.8 in Debian, I went ahead and installed it on my Debian unstable install, alongside GNOME 3. Performance is great and I am seriously considering switching my old workstations to it. Amongst the issues I encountered, one concerns the s

Re: Suspend leads to black screen without sleep [Dell Latitude E6440]

working reliably. Difficult to verify since no detailed changelog is available. But since then, no more problem with suspending on both Ubuntu and Debian. Ghis 2014-03-18 21:56 GMT+00:00 Michal Kvasnicka : > Ghislain Vaillant gmail.com> writes: > > > > > > > > &

Re: Radeon HD 6630M/6650M/6750M/7670M/7690M

Hi Lina, Have you tried to switch back to the open source driver first and then re-perform the installation process for the non-free driver if need be. I would: - First undo the installation steps of the proprietary drivers in https://wiki.debian.org/ATIProprietary, don't reboot, - Follow the ste

Re: Re: Suspend leads to black screen without sleep [Dell Latitude E6440]

Thanks guys for your suggestions. I have tried kernel 3.12 and then the recently released 3.13 in sid without any luck. The thing is that, from time to time, suspend works (maybe 1 out of 15 attempts) for whatever reasons.

Suspend leads to black screen without sleep [Dell Latitude E6440]

Another issue with my Dell Latitude E6440 with AMD hybrid graphics is suspend not working. Suspend leads to a black screen, the system does not go to sleep and seems to be still running (power LED and fan are still on). I already tried different kernel: 3.5 (Ubuntu LTS), 3.12 and 3.13 (Debian sid/

Gnome 3.8 and AMD Hybrid Graphics, works in discrete mode not in integrated mode

I have a Dell Latitude E6440 equipped with Haswell processor and intel graphics, coupled with AMD hybrid graphics HD8690M. I am currently using Debian testing/sid, where most hardware is recognized. Standard installation left me with the Intel graphics driver working. I have followed the installat

which package to report a bug on brightness control to

Hi everyone, Brightness control on my Dell Latitude e6420 (Fn + up or down arrow) slows my system down significantly on an up-to-date Debian Sid installation. It does not happen on Debian Wheezy, so I am thinking this is a bug. I am using Gnome on both. However, I have absolutely no idea whi