Problème sur le Xorg de Debian 8 PPC

Bonjour, après l’installation (réussite cette fois) de Debian 8 sur mon Imac G5 (avec LXDE), impossible de faire un startx ! Je copie colle le log.

[code][ 827.766]
X.Org X Server 1.16.4
Release Date: 2014-12-20
[ 827.767] X Protocol Version 11, Revision 0
[ 827.767] Build Operating System: Linux 3.2.0-4-powerpc64 ppc Debian
[ 827.767] Current Operating System: Linux Debian-G5 3.16.0-4-powerpc64 #1 SMP Debian 3.16.7-ckt9-3~deb8u1 (2015-04-24) ppc64
[ 827.768] Kernel command line: root=UUID=11593e23-752b-4c38-a6c2-1fa530d015a8 ro
[ 827.768] Build Date: 11 February 2015 01:13:01AM
[ 827.769] xorg-server 2:1.16.4-1 (http://www.debian.org/support)
[ 827.769] Current version of pixman: 0.32.6
[ 827.770] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 827.770] Markers: (–) probed, () from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 827.773] (==) Log file: “/var/log/Xorg.1.log”, Time: Sat May 23 15:24:21 2015
[ 827.774] (==) Using system config directory “/usr/share/X11/xorg.conf.d”
[ 827.775] (==) No Layout section. Using the first Screen section.
[ 827.775] (==) No screen section available. Using defaults.
[ 827.775] (
) |–>Screen “Default Screen Section” (0)
[ 827.775] (**) | |–>Monitor “”
[ 827.775] (==) No monitor specified for screen “Default Screen Section”.
Using a default monitor configuration.
[ 827.775] (==) Automatically adding devices
[ 827.775] (==) Automatically enabling devices
[ 827.775] (==) Automatically adding GPU devices
[ 827.775] (WW) The directory “/usr/share/fonts/X11/cyrillic” does not exist.
[ 827.775] Entry deleted from font path.
[ 827.776] (==) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/100dpi/:unscaled,
/usr/share/fonts/X11/75dpi/:unscaled,
/usr/share/fonts/X11/Type1,
/usr/share/fonts/X11/100dpi,
/usr/share/fonts/X11/75dpi,
built-ins
[ 827.776] (==) ModulePath set to “/usr/lib/xorg/modules”
[ 827.776] (II) The server relies on udev to provide the list of input devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 827.776] (II) Loader magic: 0x20a2b698
[ 827.776] (II) Module ABI versions:
[ 827.776] X.Org ANSI C Emulation: 0.4
[ 827.776] X.Org Video Driver: 18.0
[ 827.776] X.Org XInput driver : 21.0
[ 827.776] X.Org Server Extension : 8.0
[ 827.777] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 827.780] (–) PCI:*(0:240:16:0) 10de:0329:10de:0010 rev 161, Mem @ 0x91000000/16777216, 0xa0000000/134217728, BIOS @ 0x???/131072
[ 827.780] (II) LoadModule: “glx”
[ 827.780] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 827.791] compiled for 1.16.4, module version = 1.0.0
[ 827.791] ABI class: X.Org Server Extension, version 8.0
[ 827.791] (==) AIGLX enabled
[ 827.792] (==) Matched nouveau as autoconfigured driver 0
[ 827.792] (==) Matched nv as autoconfigured driver 1
[ 827.792] (==) Matched nouveau as autoconfigured driver 2
[ 827.792] (==) Matched nv as autoconfigured driver 3
[ 827.792] (==) Matched modesetting as autoconfigured driver 4
[ 827.792] (==) Matched fbdev as autoconfigured driver 5
[ 827.792] (==) Assigned the driver to the xf86ConfigLayout
[ 827.792] (II) LoadModule: “nouveau”
[ 827.792] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
[ 827.793] (II) Module nouveau: vendor=“X.Org Foundation”
[ 827.793] compiled for 1.16.0, module version = 1.0.11
[ 827.793] Module class: X.Org Video Driver
[ 827.793] ABI class: X.Org Video Driver, version 18.0
[ 827.793] (II) LoadModule: “nv”
[ 827.794] (WW) Warning, couldn’t open module nv
[ 827.794] (II) UnloadModule: “nv”
[ 827.794] (II) Unloading nv
[ 827.794] (EE) Failed to load module “nv” (module does not exist, 0)
[ 827.794] (II) LoadModule: “modesetting”
[ 827.794] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 827.794] (II) Module modesetting: vendor=“X.Org Foundation”
[ 827.794] compiled for 1.15.99.904, module version = 0.9.0
[ 827.795] Module class: X.Org Video Driver
[ 827.795] ABI class: X.Org Video Driver, version 18.0
[ 827.795] (II) LoadModule: “fbdev”
[ 827.795] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 827.795] (II) Module fbdev: vendor=“X.Org Foundation”
[ 827.795] compiled for 1.15.99.904, module version = 0.4.4
[ 827.795] Module class: X.Org Video Driver
[ 827.795] ABI class: X.Org Video Driver, version 18.0
[ 827.795] (II) NOUVEAU driver Date: Thu Aug 28 03:57:48 2014 +0200
[ 827.795] (II) NOUVEAU driver for NVIDIA chipset families :
[ 827.795] RIVA TNT (NV04)
[ 827.795] RIVA TNT2 (NV05)
[ 827.796] GeForce 256 (NV10)
[ 827.796] GeForce 2 (NV11, NV15)
[ 827.796] GeForce 4MX (NV17, NV18)
[ 827.796] GeForce 3 (NV20)
[ 827.796] GeForce 4Ti (NV25, NV28)
[ 827.796] GeForce FX (NV3x)
[ 827.796] GeForce 6 (NV4x)
[ 827.796] GeForce 7 (G7x)
[ 827.796] GeForce 8 (G8x)
[ 827.796] GeForce GTX 200 (NVA0)
[ 827.796] GeForce GTX 400 (NVC0)
[ 827.797] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 827.797] (II) FBDEV: driver for framebuffer: fbdev
[ 827.797] (–) using VT number 3

[ 827.816] (II) [drm] nouveau interface version: 1.1.2
[ 827.816] (WW) Falling back to old probe method for modesetting
[ 827.816] (WW) Falling back to old probe method for fbdev
[ 827.816] (II) Loading sub module “fbdevhw”
[ 827.816] (II) LoadModule: “fbdevhw”
[ 827.817] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 827.817] (II) Module fbdevhw: vendor=“X.Org Foundation”
[ 827.817] compiled for 1.16.4, module version = 0.0.2
[ 827.817] ABI class: X.Org Video Driver, version 18.0
[ 827.817] (II) Loading sub module “dri2”
[ 827.817] (II) LoadModule: “dri2”
[ 827.817] (II) Module “dri2” already built-in
[ 827.818] (–) NOUVEAU(0): Chipset: “NVIDIA NV34”
[ 827.818] (II) NOUVEAU(0): Creating default Display subsection in Screen section
"Default Screen Section" for depth/fbbpp 24/32
[ 827.818] (==) NOUVEAU(0): Depth 24, (–) framebuffer bpp 32
[ 827.818] (==) NOUVEAU(0): RGB weight 888
[ 827.818] (==) NOUVEAU(0): Default visual is TrueColor
[ 827.818] (==) NOUVEAU(0): Using HW cursor
[ 827.818] (==) NOUVEAU(0): GLX sync to VBlank enabled.
[ 827.818] (==) NOUVEAU(0): Page flipping enabled
[ 827.818] (==) NOUVEAU(0): Swap limit set to 1 [Max allowed 2]
[ 827.818] (==) NOUVEAU(0): Page flipping synced to vblank by kernel.
[ 827.818] (II) NOUVEAU(0): Initializing outputs …
[ 827.849] (II) NOUVEAU(0): Output DVI-D-1 has no monitor section
[ 827.850] (II) NOUVEAU(0): Output VGA-1 has no monitor section
[ 827.976] (II) NOUVEAU(0): Output TV-1 has no monitor section
[ 827.976] (II) NOUVEAU(0): 3 crtcs needed for screen.
[ 827.976] (II) NOUVEAU(0): Allocated crtc nr. 0 to this screen.
[ 827.976] (II) NOUVEAU(0): Allocated crtc nr. 1 to this screen.
[ 828.007] (II) NOUVEAU(0): EDID for output DVI-D-1
[ 828.007] (II) NOUVEAU(0): Manufacturer: APP Model: 9c39 Serial#: 16843009
[ 828.007] (II) NOUVEAU(0): Year: 2003 Week: 0
[ 828.007] (II) NOUVEAU(0): EDID Version: 1.3
[ 828.007] (II) NOUVEAU(0): Digital Display Input
[ 828.007] (II) NOUVEAU(0): Max Image Size [cm]: horiz.: 43 vert.: 27
[ 828.007] (II) NOUVEAU(0): Gamma: 2.20
[ 828.007] (II) NOUVEAU(0): No DPMS capabilities specified
[ 828.008] (II) NOUVEAU(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4
[ 828.008] (II) NOUVEAU(0): First detailed timing is preferred mode
[ 828.008] (II) NOUVEAU(0): redX: 0.640 redY: 0.330 greenX: 0.290 greenY: 0.600
[ 828.008] (II) NOUVEAU(0): blueX: 0.150 blueY: 0.060 whiteX: 0.313 whiteY: 0.329
[ 828.008] (II) NOUVEAU(0): Manufacturer’s mask: 0
[ 828.008] (II) NOUVEAU(0): Supported detailed timing:
[ 828.008] (II) NOUVEAU(0): clock: 119.0 MHz Image Size: 433 x 270 mm
[ 828.008] (II) NOUVEAU(0): h_active: 1680 h_sync: 1728 h_sync_end 1760 h_blank_end 1840 h_border: 0
[ 828.008] (II) NOUVEAU(0): v_active: 1050 v_sync: 1053 v_sync_end 1059 v_blanking: 1080 v_border: 0
[ 828.008] (II) NOUVEAU(0): Unknown vendor-specific block 1
[ 828.008] (II) NOUVEAU(0): M201Z2-M01
[ 828.008] (II) NOUVEAU(0): Monitor name: Color LCD
[ 828.008] (II) NOUVEAU(0): EDID (in hex):
[ 828.008] (II) NOUVEAU(0): 00ffffffffffff000610399c01010101
[ 828.008] (II) NOUVEAU(0): 000d0103802b1b780ae695a3544a9926
[ 828.008] (II) NOUVEAU(0): 0f505400000001010101010101010101
[ 828.008] (II) NOUVEAU(0): 0101010101017c2e90a0601a1e403020
[ 828.008] (II) NOUVEAU(0): 3600b10e1100001c0000000100061001
[ 828.008] (II) NOUVEAU(0): 11000000000000000a20000000fe004d
[ 828.008] (II) NOUVEAU(0): 3230315a322d4d30310a2020000000fc
[ 828.008] (II) NOUVEAU(0): 00436f6c6f72204c43440a2020200022
[ 828.008] (II) NOUVEAU(0): Printing probed modes for output DVI-D-1
[ 828.008] (II) NOUVEAU(0): Modeline "1680x1050"x59.9 119.00 1680 1728 1760 1840 1050 1053 1059 1080 -hsync +vsync (64.7 kHz eP)
[ 828.010] (II) NOUVEAU(0): EDID for output VGA-1
[ 828.010] (II) NOUVEAU(0): Printing probed modes for output VGA-1
[ 828.010] (II) NOUVEAU(0): Modeline "1680x1050"x59.9 119.00 1680 1728 1760 1840 1050 1053 1059 1080 -hsync +vsync (64.7 kHz eP)
[ 828.136] (II) NOUVEAU(0): EDID for output TV-1
[ 828.136] (II) NOUVEAU(0): Output DVI-D-1 connected
[ 828.136] (II) NOUVEAU(0): Output VGA-1 connected
[ 828.136] (II) NOUVEAU(0): Output TV-1 disconnected
[ 828.136] (II) NOUVEAU(0): Using exact sizes for initial modes
[ 828.136] (II) NOUVEAU(0): Output DVI-D-1 using initial mode 1680x1050
[ 828.136] (II) NOUVEAU(0): Output VGA-1 using initial mode 1680x1050
[ 828.136] (II) NOUVEAU(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
[ 828.136] (–) NOUVEAU(0): Virtual size is 1680x1050 (pitch 0)
[ 828.136] () NOUVEAU(0): Driver mode “1680x1050”: 119.0 MHz (scaled from 0.0 MHz), 64.7 kHz, 59.9 Hz
[ 828.136] (II) NOUVEAU(0): Modeline "1680x1050"x59.9 119.00 1680 1728 1760 1840 1050 1053 1059 1080 -hsync +vsync (64.7 kHz eP)
[ 828.136] (==) NOUVEAU(0): DPI set to (96, 96)
[ 828.136] (II) Loading sub module “fb”
[ 828.136] (II) LoadModule: “fb”
[ 828.136] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 828.137] (II) Module fb: vendor=“X.Org Foundation”
[ 828.137] compiled for 1.16.4, module version = 1.0.0
[ 828.137] ABI class: X.Org ANSI C Emulation, version 0.4
[ 828.137] (II) Loading sub module “shadowfb”
[ 828.137] (II) LoadModule: “shadowfb”
[ 828.137] (II) Loading /usr/lib/xorg/modules/libshadowfb.so
[ 828.137] (II) Module shadowfb: vendor=“X.Org Foundation”
[ 828.138] compiled for 1.16.4, module version = 1.0.0
[ 828.138] ABI class: X.Org ANSI C Emulation, version 0.4
[ 828.138] (II) UnloadModule: “modesetting”
[ 828.138] (II) Unloading modesetting
[ 828.138] (II) UnloadModule: “fbdev”
[ 828.138] (II) Unloading fbdev
[ 828.138] (II) UnloadSubModule: “fbdevhw”
[ 828.138] (II) Unloading fbdevhw
[ 828.138] (–) Depth 24 pixmap format is 32 bpp
[ 828.139] (EE) NOUVEAU(0): Failed to allocate scratch buffer: -12
[ 828.139] (EE) NOUVEAU(0): Error initialising acceleration. Falling back to NoAccel
[ 828.139] (
) NOUVEAU(0): [COPY] acceleration disabled
[ 828.139] -12
[ 828.139] (EE) NOUVEAU(0): Error allocating scanout buffer: 0
[ 828.139] (EE)
Fatal server error:
[ 828.139] (EE) AddScreen/ScreenInit failed for driver 0
[ 828.139] (EE)
[ 828.139] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 828.139] (EE) Please also check the log file at “/var/log/Xorg.1.log” for additional information.
[ 828.140] (EE)
[ 828.175] (EE) Server terminated with error (1). Closing log file.
[/code]

Merci d’avance.

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