Ubuntu-gr Forum

έγραψε:* Saucy's kernel and xserver already include the required patches to enable basic support for Hybrid GFX
- Maybe add a couple more patches for X?
http://lists.x.org/archives/xorg-devel/ ... 36101.html
http://lists.x.org/archives/xorg-devel/ ... 36119.html
* Support in Lightdm
* The gnome-settings-
daemon needs to learn about RandR providers
* fglrx & NVIDIA have some support for hybrid now, are we able to support that?
* Nvidia 319.12 documentation: http://us.download.nvidia.com/XFree86/L ... ndr14.html
* Correct instructions plus using Intel instead of Modesetting: http://paste.ubuntu.com/5601226/
* Update xrandr to 1.4.0
* What is the status of support Hybrid graphics in MIR ?
* Testing

Work items:
[mlankhorst] get the kernel pieces ready and upstream: INPROGRESS
[canonical-kernel-team] to look at http://cgit.freedesktop.org/~mlankhorst/linux v10-wip: TODO
[ubuntu-x-swat] look at fixing drawing glitches where offsets are wrong or pixmaps not shared: TODO
[mlankhorst,tseliot] Create a wiki page with instructions on how to test and how to report results (in both X and MIR)
[mlankhorst] review patches linked above, and include them in xorg-server
[tseliot] test the above mentioned patches and see what's required configuration-wise
[mlankhorst] make sure that headless optimus will work correctly on nvidia-settings

Progress:
* Synchronization and fencing through dma_buf targeted for 3.11 (what's kernel team aiming for?) (Kernel is definatly going to be at least 3.10, 3.11 is expected to be available in time for S but we will know better once we have the release date for 3.10)
* ttm and other bits coming in 3.12
* Getting the xorg.conf right requires an accurate PCI ID
* Modesetting vs Intel (SNA) for display


Nvidia Prime benchmarks vs Bumblebee:
http://pastebin.com/NkrMRMkG
Huge performance gains but no power management aside from Powermizer

fglrx has its own scheme for hybrid graphics, and we do not know how this is going to connect with our work.

Questions:
Q: how to test for tearing like the X quadrants? (automated)
A: The whole desktop will tear, so it should be readily apparent visually, not sure how this could be automated
A2: in case of the open source drivers it's possible to test by creating a dummy program that references a dma-buf object on both cards.
For example with something similar to intel-gpu-tools/tests/prime_nv_pcopy.c test_semaphore().