Hello.
I've been using X over network for years. It's a good way to connect
several (3-4) monitors to laptop with only one video output or make a
silent station with a lot of ram and high-perf cpu on small intel
compute stick. 2D graphics works well, I can watch 1080p movie over
gigabit network without any issues. But now, a lot of 2D effects are
done via 3D. It's impossible to run Enlightenment WM in such environment
as it's become very slow. So I'm trying to understand and run virtualgl.
I have two hosts:
hostA, which is the qemu virtual, with no graphic card and XDMCP server
hostB, which is the real host with intel atom x5-Z8330 (and gpu
embedded), with X server
both hosts are debian sid with virtualgl_2.6_amd64.deb installed
glxinfo runned on hostA will give a lot of output:
name of display: hostB:0
display: hostB:0 screen: 0
direct rendering: Yes
...
Extended renderer info (GLX_MESA_query_renderer):
Vendor: VMware, Inc. (0xffffffff)
Device: llvmpipe (LLVM 6.0, 128 bits) (0xffffffff)
...
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: llvmpipe (LLVM 6.0, 128 bits)
...
glxinfo runned on hostB will show hardware acceleration:
name of display: :0
display: :0 screen: 0
direct rendering: Yes
...
Extended renderer info (GLX_MESA_query_renderer):
Vendor: Intel Open Source Technology Center (0x8086)
Device: Mesa DRI Intel(R) HD Graphics (Cherrytrail) (0x22b0)
Version: 18.1.7
Accelerated: yes
...
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics (Cherrytrail)
...
now I'm starting virtualgl:
on hostB:
% DISPLAY=:0 vglclient
VirtualGL Client 64-bit v2.6 (Build 20180824)
Listening for unencrypted connections on port 4242
on hostA:
% DISPLAY=hostB:0 vglrun -c rgb -d hostB:0 -v
/opt/VirtualGL/bin/glxspheres64
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
libGL error: failed to open drm device: No such file or directory
libGL error: failed to load driver: i965
libGL error: failed to open drm device: No such file or directory
libGL error: failed to load driver: i965
Visual ID of window: 0x21
Context is Direct
OpenGL Renderer: llvmpipe (LLVM 6.0, 128 bits)
7.126069 frames/sec - 7.952693 Mpixels/sec
7.083555 frames/sec - 7.905248 Mpixels/sec
...
hostB says: ++ Connection from hostA.
1. Why I got failed to open drm device / failed to load driver: i965?
2. Why OpenGL Renderer is llvmpipe?
If I'll try to run glxinfo I'll got an segfault with no
"++ Connection from hostA." message on hostB:
% DISPLAY=hostB:0 vglrun -c rgb -d hostB:0 -v /opt/VirtualGL/bin/glxinfo
name of display: hostB:0
libGL error: failed to open drm device: No such file or directory
libGL error: failed to load driver: i965
libGL error: failed to open drm device: No such file or directory
libGL error: failed to load driver: i965
display: hostB:0 screen: 0
direct rendering: Yes
server glx vendor string: VirtualGL
server glx version string: 1.4
...
client glx vendor string: VirtualGL
...
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: llvmpipe (LLVM 6.0, 128 bits)
...
OpenGL core profile extensions:
GL_AMD_conservative_depth, GL_AMD_draw_buffers_blend,
...
GL_OES_EGL_image, GL_S3_s3tc
zsh: segmentation fault DISPLAY=hostB:0 vglrun -c rgb -d hostB:0 -v
/opt/VirtualGL/bin/glxinfo
--
sergio.
--
You received this message because you are subscribed to the Google Groups "VirtualGL
User Discussion/Support" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/virtualgl-users/30c035a1-bce5-6a28-0e42-5ec365df2ca7%40outerface.net.
For more options, visit https://groups.google.com/d/optout.
