Nvidia-prime GLX problem using vulkan-beta (355.00.26) driver on ubuntu 16.04-alpha 64b  


Hello.

GPU acceleration/GLX does not work on optimus-enabled laptop with nvidia Vulkan-beta driver.

My laptop HP-envy15 has "optimus" intel i7-4700qm(haswell) and GeForce 840m.
Trying Vulkan on Ubuntu 16.04 alpha (daily) (full install on USB)

I was able to install  nvidia-graphics-drivers-355  from ppa: https://launchpad.net/~canonical-x/+archive/ubuntu/vulkan?field.series_filter=xenial

After installing "nvidia-prime" and selecting [code]prime-select nvidia[/code] I was not able to log-in to unity session. The gnome-fallback metacity wokrs (not using accel)

looks like kernel modules did load coretly.
nvidia-settings does run and info is ok, except nothing OpenGL/GLX information

I am not able to use 3D
[code] LIBGL_DEBUG=verbose glxinfo
name of display: :0
libGL: screen 0 does not appear to be DRI2 capable
libGL: OpenDriver: trying /usr/lib/i386-linux-gnu/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib/i386-linux-gnu/dri/swrast_dri.so
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
X Error of failed request:  GLXBadContext
  Major opcode of failed request:  154 (GLX)
  Minor opcode of failed request:  6 (X_GLXIsDirect)
  Serial number of failed request:  48
  Current serial number in output stream:  47
[/code]

I don't know how to upload nvidia-bug-report.log.gz on this forum.

lspci -nnvv http://paste.ubuntu.com/15126254/
dmesg http://paste.ubuntu.com/15126205/
Xorg.0.log http://paste.ubuntu.com/15126209/
syslog http://paste.ubuntu.com/15126224/