5

I am using a Lenovo IdeaPad Y580 laptop with an Intel i7 CPU, an Intel HD4000 integrated GPU, and NVIDIA GeForce GTX660M discrete GPU.

I have recently installed Debian testing (jessie) on it, previously using Ubuntu 14.10.

To be able to use the discrete graphics card, I have installed Bumblebee, following the guide on Debian wiki. All apps seemed to run right using optirun.

Then, I installed Steam from the repository. Problem is, that optirun fails to launch any game ran from Steam (you can notice that the user status changes to In-Game for a while, but then reverts to online). Running games using the integrated GPU works perfectly fine.

I believe that there is some problem with the libraries. I noticed, that when editing the Bumblebee config from:

PrimusLibraryPath=/usr/lib/x86_64-linux-gnu/primus:/usr/lib/i386-linux-gnu/primus

to:

PrimusLibraryPath=/usr/lib/x86_64-linux-gnu:/usr/lib/i386-linux-gnu

Steam appears to launch the game using optirun. However, it is launched by the IGP, guiding by the low FPS.

2

This problem is caused by the faulty libdrm-intel package, version 2.4.58-2 to be exact. Downgrading to 2.4.56-1 (and installing the dependencies, unfortunately) fixes the problem.

The packages can be downloaded from here (this is from the official debian server, no need to worry). Don't forget to download both i386 and amd64 packages if you are using multiarch.

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