Hi Vincent, Thanks for the suggestion!
On Sun, 2016-04-24 at 14:35 +0200, Julien ROBIN wrote: > Hi Vincent, > > I already tried that grub modification (rcutree.rcu_idle_gp_delay=1) a lot of > times in the past but probably in different conditions, because here, it > worked ! > > In summary now, here is how you can simply get it working, following all that > I did (I made a new fresh legacy-bios install just to be double sure !) > > 0 - You need a computer with an Intel Display + Nvidia discrete card (mine > is Asus R510JK - DM086H, with up to date bios, i5-4200H and GeForce 850M) > 1 - the simplest and minimalist net-installer for example (amd64 - 8.4.0 - > started and installed as efi or legacy-bios, workaround work for both) > 2 - in my case, I work with : apt-get install lightdm lxde-core aptitude > mesa-utils (I also added leafpad, synaptic and chromium, realtek and WiFi > drivers + wicd, xarchiver pavucontrol for having sound card selection, and > xbacklight for screen light intensity) > 3 - modify /etc/default/grub to add rcutree.rcu_idle_gp_delay=1 into > GRUB_CMD_LINE and GRUB_CMD_LINE_DEFAULT, then "update-grub" as root and > "reboot". > 4 - aptitude -t jessie-backports install bumblebee-nvidia, rebooted and it > works ! Today it installs bumblebee 3.2.1-10~bpo8+1, and nvidia > 352.79-1~bpo8+1 and a lot of others things. > > Having already tried that grub modification in the past without success for > what seemed to be the same error, before I can confirm you that this > workaround doesn't work with the standard jessie's bumblebee installation - > and all the sub-packages that comes with - it would be more nearly sure for > me to try again and look if the error logs were the same ! > > Thanks for your help, and : > > I would suggest adding this simple procedure, for those who need a version > >340.96 of the nvidia driver, into the Debian bumblebee installation's wiki : > > 1 - with backports enabled into source.list, apt-get update and aptitude -t > jessie-backports install bumblebee-nvidia > 2 - modify /etc/default/grub to add rcutree.rcu_idle_gp_delay=1 into > GRUB_CMD_LINE and GRUB_CMD_LINE_DEFAULT, then "update-grub" and "reboot" > (or may be, 2bis, use the backported version of the kernel, but I > didn't tested it) > > And last thing : is this backported simple and full installation of > bumblebee-nvidia working for anyone without the second point ? I didn't > tested the newer backported kernel, because few days in the past, I had game > crashes and kernel panics every few minutes with a more recent kernel on > ubuntu 15.10, that's why I will first give it a try with 3.16 before > upgrading if I really need :) > > Thanks again for you help, I hope this thread could have clarified things for > others people trying to play with Debian ! > > Best regards, > Julien ROBIN Hi Julien, Thanks for helping digging into this! I just tried, and without the kernel cmdline workaround it works for me on both 3.16 and 4.4 from backports. I can only assume at this point that the issue is hardware-specific. I have a Dell Latitude E5540 with an Haswell i7-4600U and a GT720M. I'll document this workaround in the debian/README.source, not much else we can do I'm afraid. Kind regards, Luca Boccassi
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