services: xorg: Allow users to specify the drivers to use.

* gnu/services/xorg.scm (xorg-start-command): Add #:drivers parameter.
  Add 'device-section' procedure, and use it in 'xserver.conf'.
* doc/guix.texi (X Window): Document it.
This commit is contained in:
Ludovic Courtès 2014-11-06 23:20:53 +01:00
parent e30442b53b
commit f703413e41
2 changed files with 26 additions and 4 deletions

View file

@ -3953,6 +3953,15 @@ password. When @var{auto-login?} is true, log in automatically as
@var{default-user}.
@end deffn
@deffn {Monadic Procedure} xorg-start-command [#:guile] @
[#:drivers '()] [#:xorg-server @var{xorg-server}]
Return a derivation that builds a @var{guile} script to start the X server
from @var{xorg-server}. Usually the X server is started by a login manager.
@var{drivers} must be either the empty list, in which case Xorg chooses a
graphics driver automatically, or a list of driver names that will be tried in
this order---e.g., @code{("modesetting" "vesa")}.
@end deffn
@node Setuid Programs
@subsection Setuid Programs

View file

@ -42,9 +42,21 @@ (define-module (gnu services xorg)
(define* (xorg-start-command #:key
(guile (canonical-package guile-2.0))
(xorg-server xorg-server))
"Return a derivation that builds a GUILE script to start the X server from
XORG-SERVER. Usually the X server is started by a login manager."
(xorg-server xorg-server)
(drivers '()))
"Return a derivation that builds a @var{guile} script to start the X server
from @var{xorg-server}. Usually the X server is started by a login manager.
@var{drivers} must be either the empty list, in which case Xorg chooses a
graphics driver automatically, or a list of driver names that will be tried in
this order---e.g., @code{(\"modesetting\" \"vesa\")}."
(define (device-section driver)
(string-append "
Section \"Device\"
Identifier \"device-" driver "\"
Driver \"" driver "\"
EndSection"))
(define (xserver.conf)
(text-file* "xserver.conf" "
@ -69,7 +81,8 @@ (define (xserver.conf)
Section \"ServerFlags\"
Option \"AllowMouseOpenFail\" \"on\"
EndSection
"))
"
(string-join (map device-section drivers) "\n")))
(mlet %store-monad ((config (xserver.conf)))
(define script