Once I change the Xserver.org file ,The Xserver will fail to restart.
who can help me.

Hi, i92guboj
I must say sorry about it!
Sorry for the mistake and I just start learning Linux and know very few about it, Sorry! I will be careful.
Yes,I mean the xorg.conf file.

Section "ServerLayout"
Identifier "aticonfig Layout"
Screen 0 "aticonfig-Screen[0]-0" 0 0
EndSection

Section "Files"
EndSection

Section "Module"
EndSection

Section "ServerFlags"
Option "Xinerama" "off"
EndSection

Section "Monitor"
Identifier "aticonfig-Monitor[0]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection

Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
Option "PseudoColorVisuals" "on"
Option "ForceMonitors" "crt1"
BusID "PCI:2:0:0"
EndSection

Section "Screen"
Identifier "aticonfig-Screen[0]-0"
Device "aticonfig-Device[0]-0"
Monitor "aticonfig-Monitor[0]-0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 16
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection

Xorg.0.log as below:
++++

X.Org X Server 1.6.4
Release Date: 2009-9-27
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-23-server i686 Ubuntu
Current Operating System: Linux test-desktop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.31-14-generic root=UUID=2ed2d77e-a10c-4125-9259-40311731813c ro quiet splash
Build Date: 26 October 2009 05:15:02PM
xorg-server 2:1.6.4-2ubuntu4 (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: Tue Mar 2 17:10:15 2010
(==) Using config file: "/etc/X11/xorg.conf"
(==) ServerLayout "aticonfig Layout"
(**) |-->Screen "aticonfig-Screen[0]-0" (0)
(**) | |-->Monitor "aticonfig-Monitor[0]-0"
(**) | |-->Device "aticonfig-Device[0]-0"
(**) Option "Xinerama" "off"
(==) 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"
(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: 0x3bc0
(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:*(0:2:0:0) 1002:95c5:1462:1180 ATI Technologies Inc Mobility Radeon HD 3450 rev 0, Mem @ 0xe0000000/268435456, 0xfdcf0000/65536, I/O @ 0x0000bc00/256, 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 0xffffffff - 0xffffffff (0x1) MX[B]
[5] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[6] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[7] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[8] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[9] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[10] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[11] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[12] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[13] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[14] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[15] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[16] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[17] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[18] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[19] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[20] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[21] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[22] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[23] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[24] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[25] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[26] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[27] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[28] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[29] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
(II) "extmod" will be loaded by default.
(II) "dbe" will be loaded by default.
(II) "glx" will be loaded by default.
(II) "record" will be loaded by default.
(II) "dri" will be loaded by default.
(II) "dri2" will be loaded by default.
(II) LoadModule: "extmod"
(II) Loading /usr/lib/xorg/modules/extensions//libextmod.so
(II) Module extmod: vendor="X.Org Foundation"
compiled for 1.6.4, 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 1.6.4, 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="FireGL - ATI Technologies Inc."
compiled for 7.4.0, module version = 1.0.0
(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 1.6.4, 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 1.6.4, 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 1.6.4, module version = 1.1.0
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DRI2
(II) LoadModule: "fglrx"
(II) Loading /usr/lib/xorg/modules/drivers//fglrx_drv.so
(II) Module fglrx: vendor="FireGL - ATI Technologies Inc."
compiled for 1.4.99.906, module version = 8.69.4
Module class: X.Org Video Driver
(II) Loading sub module "fglrxdrm"
(II) LoadModule: "fglrxdrm"
(II) Loading /usr/lib/xorg/modules/linux//libfglrxdrm.so
(II) Module fglrxdrm: vendor="FireGL - ATI Technologies Inc."
compiled for 1.4.99.906, module version = 8.69.4
(II) ATI Proprietary Linux Driver Version Identifier:8.69.4
(II) ATI Proprietary Linux Driver Release Identifier: 8.69
(II) ATI Proprietary Linux Driver Build Date: Dec 11 2009 14:56:29
(II) Primary Device is: PCI 02@00:00:0
(WW) Falling back to old probe method for fglrx
(II) Loading PCS database from /etc/ati/amdpcsdb
(--) Chipset Supported AMD Graphics Processor (0x95C5) found
(II) AMD Video driver is running on a device belonging to a group targeted for this release
(II) AMD Video driver is signed
(II) resource ranges after xf86ClaimFixedResources() call:
[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 0xffffffff - 0xffffffff (0x1) MX[B]
[5] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[6] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[7] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[8] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[9] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[10] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[11] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[12] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[13] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[14] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[15] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[16] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[17] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[18] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[19] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[20] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[21] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[22] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[23] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[24] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[25] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[26] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[27] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[28] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[29] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
(II) fglrx(0): pEnt->device->identifier=0x82b0df8
(II) resource ranges after probing:
[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 0xffffffff - 0xffffffff (0x1) MX[B]
[5] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[6] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[7] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[8] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[9] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[10] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[11] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[12] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[13] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[14] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[15] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[16] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[17] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[18] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[19] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[20] 0 0 0x000a0000 - 0x000affff (0x10000) MS[B]
[21] 0 0 0x000b0000 - 0x000b7fff (0x8000) MS[B]
[22] 0 0 0x000b8000 - 0x000bffff (0x8000) MS[B]
[23] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[24] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[25] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[26] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[27] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[28] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[29] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[30] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[31] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[32] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[33] 0 0 0x000003b0 - 0x000003bb (0xc) IS[B]
[34] 0 0 0x000003c0 - 0x000003df (0x20) IS[B]
(II) Setting vga for screen 0.
(II) fglrx(0): === [atiddxPreInit] === begin
(II) Loading sub module "vgahw"
(II) LoadModule: "vgahw"
(II) Loading /usr/lib/xorg/modules//libvgahw.so
(II) Module vgahw: vendor="X.Org Foundation"
compiled for 1.6.4, module version = 0.1.0
ABI class: X.Org Video Driver, version 5.0
(II) fglrx(0): PCI bus 2 card 0 func 0
(EE) fglrx(0): Given depth (16) is not supported by fglrx driver
(EE) fglrx(0): PreInitVisual failed
(EE) fglrx(0): PreInit failed
(II) fglrx(0): === [atiddxPreInit] === end
SetVBEMode failed
(II) UnloadModule: "fglrx"
(II) UnloadModule: "vgahw"
(II) Unloading /usr/lib/xorg/modules//libvgahw.so
(II) UnloadModule: "fglrxdrm"
(EE) Screen(s) found, but none have a usable configuration.

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

It seems that, as said in the log file:

So, this looks like a limitation of the fglrx driver. Is there a concrete reason why you want to use 16 bits instead of 24/32? You will probably not notice any speed improvement at all anyway.

Thanks i92guboj!
I want to use 16 bits instead of 24/32 just for a testing purpose,Since we should ensure the product can running in any supported color depth and resolution.
So ,if the 16 bits is not support I would like to try 32bit and I know the default depth is 24bit. And I google the info,somebody say the 32 bit is not a valid value in linux.

You can always use a different driver. You should be able to use either "radeon", "radeonhd" or "vesa" (generic, no acceleration). I have no idea what their current status for 16 bits is, though. But you can try.

[/quote]

Whether a given depth or resolution is available will come determined by your hardware and the video driver, not by the linux kernel as far as I know. Not that I am an specialist when it comes to the linux video subsystem, though.

Thanks for your info,it is very useful for me!
I got it . Unlucky, "radeon" is the special driver for me.

I don't understand that.

There are three drivers that are specific for ATi Radeon cards:

• fglrx, the one you are using right now. It's closed and it's property of AMD/ATi.
• radeon, it's a driver that comes with the x.org project, it's open and the source is available.
• radeonhd, it's an alternative open driver, these days the projects seems to be not quite active, though that's my (maybe incorrect) personal appreciation.

In addition, if you can't use any of the above, you have the "vesa" driver, which is generic and will work with any vesa compatible vga card (100% of them nowadays, I'd say). So, if fglrx doesn't work in 16 bits mode, you can still try three more drivers. All you should need is to change the "Driver" line in the xorg.conf file. Some of them might need additional setup, I am not sure.

Since our product only can run in the fglrx driver now:-( So I have to skip it now. Thank you.

In which way is your product tied to fglrx? It must be interacting with X at a really low level then. If your problem is the lack of 3d support then you should really try libdrm, xf86-video-ati and mesa from the git branches, they already can do 3d (not perfect, but mostly working). You'll also need a recent kernel. 2.6.30 I think for regular use, 2.6.32 at least if you want also KMS.

1 members found this post helpful.

yeah, we realy need about kernel. 2.6.30. and need 3d support.
But I am not very clear about the structure and lack of the deeply knowledge,sorry for it.
I really very appreicate with your help.Thanks.