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Bumblebee Overview
Lekensteyn edited this page Aug 6, 2011
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This page tries to establish a design for Bumblebee. It's aimed at developers. Developers are encouraged to discuss the points below.
The installation is distinct from configuration because it has to be executed only once.
- clean the mess named bumblebee-enablecard and other unremoved files
- uninstall previous Bumblebee versions
- display driver installation (currently nvidia, nouveau as option for the future)
- (Ubuntu, possibly others?) to avoid breaking the Intel display, set the default GL lib to Mesa
- virtualgl
- setup initscript / daemon (for now, it starts the X server)
- add a group which is allowed to use bumblebee
(old approach) add user to sudoers to allow enabling/disabling the X server using the initscript
- Xorg settings (these should propably be moved to Installation, at leas):
-
ConnectedMonitor
setting, known values:CRT-0
,DFP-0
-
BusID
setting, should be the PCI Bus ID of the nVidia card
We should allow for unattended installations and choose sensible defaults.
- VGL preferences (see also User's Guide for VirtualGL: 19 Advanced configuration)
-
VGL_COMPRESS
sets the compression method for framestransport possible values:yuv
,jpeg
,proxy
(VGL default),xv
(BB default),rgb
-
VGL_DISPLAY
sets the X display to be used (this display is started by Bumblebee) -
VGL_READBACK
- "Specify the method used by VirtualGL to read back the 3D pixels from the 3D graphics hardware" (???) -
VGL_LOG
- set to/dev/null
to discard all VGL messages, an empty value should default to outputting to stderr - Bumblebee-specific stuff:
-
ECO_MODE
- if not connected to a power supply, new programs do not use the nvidia card whenECO_MODE
is set to1
.
- should start X server on request
- Use a single X server for now, see issue 8
- allow for driver switching? (probably not, user should edit configfile and restart bumblebee)
- automatically shutdown X when unused for configurable seconds?
- initscript starts the bumblebee daemon which is located in
/usr/sbin/bumblebee
or/usr/local/sbin/bumblebee
. - Options for
bumblebee
:-
--version
- prints the version on the first line. License and credits on the next lines -
-d
- this option is passed by the initscript to instruct starting a daemon - If no options are passed, a informational message should be printed. Probably the possible options
-
-
/etc/bumblebee
was a file in 1.7.10 and before (PPA 2.2.0 and before), containing the version number like:Bumblebee Version: 2.2.0 Worst. Decision. Ever. From now on, we'll create a directory for storing configuration files. (
/etc/bumblebee/
) The version will be stored in the daemon file.