Je crois que ça vient d'une sucette avec Xorg
[root@Fixe ~]# Xorg :1 -configure
X.Org X Server 1.16.2
Release Date: 2014-11-10
X Protocol Version 11, Revision 0
Build Operating System: 3.17.2-200.fc20.x86_64
Current Operating System: Linux Fixe.LoungED 3.17.4-301.fc21.x86_64 #1 SMP Thu Nov 27 19:09:10 UTC 2014 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-3.17.4-301.fc21.x86_64 root=UUID=b64a537a-e3e0-4ead-a58b-e3bcf756873a ro rd.md=0 rd.lvm=0 rd.dm=0 vconsole.keymap=fr rd.luks=0 rhgb quiet nouveau.modeset=0 rd.driver.blacklist=nouveau video=vesa:off
Build Date: 21 November 2014 01:15:20AM
Build ID: xorg-x11-server 1.16.2-1.fc21
Current version of pixman: 0.32.6
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.1.log", Time: Thu Dec 11 22:06:20 2014
List of video drivers:
intel
qxl
openchrome
radeon
nvidia
vmware
nouveau
ati
vesa
fbdev
modesetting
(++) Using config file: "/root/xorg.conf.new"
(==) Using config directory: "/etc/X11/xorg.conf.d"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
Number of created screens does not match number of detected devices.
Configuration failed.
(EE) Server terminated with error (2). Closing log file.
Question à part, tu as un ordi portable, c'est correct ? Tu n’utilises pas bumblebee ?