Just to update: where I said 'turned off by default' I realized I don't actually know what I'm talking about.
I never had a Optimus-laptop before, and I never worked with Bumblebee or the like. Therefore I don't know what the state is, and/or how this is supposed to work. Ideally, of course, the nvidia-card would power up and down based on graphic load or application profiles, just like in Windows, but I'm thinking that's not going to happen for a while. With the current situation where you need to switch in between login sessions, at least I'd expect that if I used prime-select or nvidia- settings to switch to IGP, it would actually turn off the nvidia card. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1569383 Title: Intel HD Graphics 530 crashes on glxinfo in MSHYBRID mode Status in xserver-xorg-video-intel package in Ubuntu: Incomplete Bug description: On my laptop (Clevo P650RA) with Skylake / Intel Core i7 6700HQ with Intel HD Graphics 530 IGP and a nvidia GTX965M DGP, glxinfo crashes when running in IGP mode, The laptop uses Optimus / MSHYBRID technology to be able to utilize both IGP and DGP. After setup I install nvidia-361 driver, which will make the system run using DGP mode by default. Using prime-select intel I can switch to using the IGP. After logging out and in again, the IGP is being used. However, when doing certain tasks, the system will crash. Running glxinfo is one of them. Another one is: cat /proc/acpi/bbswitch In addition, it sometimes seemingly at random, probably when some kind of desktop effect is performed. It seems that some kind of interaction with ACPI / IGP will make it crash. This is running Kubuntu 16.04 Xenial Beta 2. Some version numbers: Kernel version (uname -r): 4.4.0-18-generic linux-image-4.4.0-18-generic: 4.4.0-18.34 xserver-xorg-core: 2:1.18.3-1ubuntu2 xserver-xorg-video-intel: 2:2.99.917+git20160325-1ubuntu1 sddm: 0.13.0-1ubuntu5 plasma-desktop: 4:5.5.4-0ubuntu1 lsb_release -a: Distributor ID: Ubuntu Description: Ubuntu Xenial Xerus (development branch) Release: 16.04 Codename: xenial I'll attach a kern.log and a Xorg.0.log from a Intel IGP session on this laptop. Please let me know if I should provide other information, and how to collect this after a full system freeze. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1569383/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
