Hi I've just compiled and installed radeonhd from git (commit 57b97e0fefd7e5a0069573befabdb28ee0094f8d) and X does not start. Xorg log below Thank you Leonardo X.Org X Server 1.6.3 Release Date: 2009-7-31 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-23-server x86_64 Ubuntu Current Operating System: Linux hn63d3j 2.6.31-11-generic #38-Ubuntu SMP Fri Oct 2 11:06:40 UTC 2009 x86_64 Kernel command line: root=UUID=dbdcd86c-0baf-4692-892a-84930e0a509b ro quiet splash Build Date: 28 September 2009 10:11:45AM xorg-server 2:1.6.3-1ubuntu7 (buildd@crested.buildd) 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.0.log", Time: Thu Oct 8 17:53:04 2009 (==) Using config file: "/etc/X11/xorg.conf" (==) No Layout section. Using the first Screen section. (==) No screen section available. Using defaults. (**) |-->Screen "Default Screen Section" (0) (**) | |-->Monitor "<default monitor>" (==) No device specified for screen "Default Screen Section". Using the first device section listed. (**) | |-->Device "ATI Technologies Inc M92" (==) No monitor specified for screen "Default Screen Section". Using a default monitor configuration. (==) Automatically adding devices (==) Automatically enabling devices (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. Entry deleted from font path. (==) 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, /var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType, built-ins (==) ModulePath set to "/usr/lib/xorg/modules" (**) Extension "Composite" is disabled (II) Cannot locate a core pointer device. (II) Cannot locate a core keyboard device. (II) The server relies on HAL to provide the list of input devices. If no devices become available, reconfigure HAL or disable AllowEmptyInput. (II) Loader magic: 0xb40 (II) Module ABI versions: X.Org ANSI C Emulation: 0.4 X.Org Video Driver: 5.0 X.Org XInput driver : 4.0 X.Org Server Extension : 2.0 (II) Loader running on linux (--) using VT number 7 (--) PCI:*(0:1:0:0) 1002:9553:1028:02be ATI Technologies Inc M92 [Mobility Radeon HD 4500 Series] rev 0, Mem @ 0xd0000000/268435456, 0xfc000000/65536, I/O @ 0x00002000/256, BIOS @ 0x????????/131072 (II) Open ACPI successful (/var/run/acpid.socket) (II) System resource ranges: [0] -1 0 0xffffffff - 0xffffffff (0x1) MX[B] [1] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B] [2] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B] [3] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B] [4] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B] [5] -1 0 0x00000000 - 0x00000000 (0x1) IX[B] (II) LoadModule: "extmod" (II) Loading /usr/lib/xorg/modules/extensions//libextmod.so (II) Module extmod: vendor="X.Org Foundation" compiled for 1.6.3, module version = 1.0.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension MIT-SCREEN-SAVER (II) Loading extension XFree86-VidModeExtension (II) Loading extension XFree86-DGA (II) Loading extension DPMS (II) Loading extension XVideo (II) Loading extension XVideo-MotionCompensation (II) Loading extension X-Resource (II) LoadModule: "dbe" (II) Loading /usr/lib/xorg/modules/extensions//libdbe.so (II) Module dbe: vendor="X.Org Foundation" compiled for 1.6.3, module version = 1.0.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension DOUBLE-BUFFER (II) LoadModule: "glx" (II) Loading /usr/lib/xorg/modules/extensions//libglx.so (II) Module glx: vendor="X.Org Foundation" compiled for 1.6.3, module version = 1.0.0 ABI class: X.Org Server Extension, version 2.0 (==) AIGLX enabled (II) Loading extension GLX (II) LoadModule: "record" (II) Loading /usr/lib/xorg/modules/extensions//librecord.so (II) Module record: vendor="X.Org Foundation" compiled for 1.6.3, module version = 1.13.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension RECORD (II) LoadModule: "dri" (II) Loading /usr/lib/xorg/modules/extensions//libdri.so (II) Module dri: vendor="X.Org Foundation" compiled for 1.6.3, module version = 1.0.0 ABI class: X.Org Server Extension, version 2.0 (II) Loading extension XFree86-DRI (II) LoadModule: "dri2" (II) Loading /usr/lib/xorg/modules/extensions//libdri2.so (II) Module dri2: vendor="X.Org Foundation" compiled for 1.6.3, module version = 1.1.0 ABI class: X.Org Server Extension, version 2.0 (II) Loading extension DRI2 (II) LoadModule: "radeonhd" (II) Loading /usr/lib/xorg/modules/drivers//radeonhd_drv.so dlopen: /usr/lib/xorg/modules/drivers//radeonhd_drv.so: undefined symbol: RhdACPISetBacklightControl (EE) Failed to load /usr/lib/xorg/modules/drivers//radeonhd_drv.so (II) UnloadModule: "radeonhd" (EE) Failed to load module "radeonhd" (loader failed, 7) (EE) No drivers available. Fatal server error: no screens found Please consult the The X.Org Foundation support at http://wiki.x.org for help. Please also check the log file at "/var/log/Xorg.0.log" for additional information. ddxSigGiveUp: Closing log