On Thu, Apr 5, 2018 at 12:26 PM, Daniel Bauer <linux@daniel-bauer.com> wrote:
Bumblebee and Prime are different solutions to handle laptops with hibrid nvidia/intel video hardware, right?
As much as I understand, Prime switches completely to the enhanced graphics (what I want), while bumblebee adds like a "virtual second X session running additionally" (excuse the very poor amateur explanation) for just a single program you start with bumblebee, thus reducing efficiency.
That's correct for nVidia binary drivers. For KMS drivers (modesetting/nouveau/intel) there is now bumblebee-like support for offloading single program to discrete GPU. It does not require completely separate X server and is more efficient than bumblebee, but it won't work with nVidia drivers for several reasons. ...
It is /really/ a problem. It was working before. It does not work anymore. I bought an expensive computer for nothing. I can use it for email and internet - all that I can do with my mobile phone, too. The regression made my laptop worthless for what I actually bought it. It's like flushing money into the toilet.
I sort of confirm it for Leap 42.3 even without nVidia drivers. I do not have physical system to play with so I configured PCI pass through into KVM VM with Leap 42.3. Attempting to configure PRIME offload from nVidia into virgl results in black screen. X server is started and apparently does everything (I can check with xrandr that it sees both adapters and sets up source offload) but there is no pictures on screen. As soon as I try to run "xrandr --auto" to make it re-detect displays kernel crashes ... Now my case may be complicated by the fact that I'm using VM and virgl adapter and I have no idea if it even supposed to work. OTOH in Internet you can find various hints that doing it with DRI2 (that I have) may be problematic and may require some application support like special composer. I'm not intimately familiar with these topics. I probably will test with Tumbleweed/GNOME next. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org