Problems configuring minimal xorg
Steve Bennett
sablists at earthlink.net
Thu Aug 13 17:54:51 PDT 2009
Hi!
For the last few weeks, I've been trying to get a minimal Linux
system running with X11. The goal is to get a system that boots,
quickly, off a CD or USB flash drive entirely into ram, with the root
filesystem existing on the initrd. As such, it's important to keep
the total distribution size down to something fairly small, yet still
boot on a wide variety of machines.
I'm using Buildroot (www.buildroot.org) to build the kernel and
configure the various packages included in this system. Originally,
the plan was to use TinyX/Kdrive for the X11, and in fact, that's how
it's currently configured. But this has been plagued with problems.
The first attempts involved using Xvesa. Getting Xvesa running
wasn't difficult, but I had major issues with input devices. Mouse
movement was erratic at best when the system started up -- jumping
all over the screen as it tried various mouse protocols and
eventually settled down on the right one. (I looked at kdrive's
mouse code to see if this was fixable, since I'd written a lot of
mouse drivers over the years -- all I have to say is "ugh"... :P )
I was, however, completely unable to get keyboard input to work no
matter what I did.
Research showed several people suggesting Xfbdev with a vesa frame
buffer instead, since Xvesa was deprecated and in fact is apparently
removed from current development tree. So I switched to Xfbdev,
using vesafb as an underlying base. This reduces video card support
a bit, but it got me some working keyboard support. But even here,
mouse support is still just as erratic at startup, and keyboard
support seems problematic as well at the start. Further, if
keyboard support is turned on at all (with -keybd keyboard), I
completely lose the ability to Ctrl+Alt+F1 back to the console, a big
problem for development.
I tried switching the keyboard and mouse support to use the kernel
evdev support, but that got me nowhere -- I was unable to get either
mouse or keyboard working, even when I looked at the evdev code in
kdrive and tried to configure it based on that.
So, based on yet another set of comments I saw suggesting that you
can get a modular xorg configuration that doesn't take up much more
space than a kdrive one, I went and tried to configure it that way,
still using the vesafb framebuffer underneath. (I did briefly try
to get the xf86-video-vesa driver setup, but couldn't build it -- I
got errors compiling vesa.h:125: expected specifier-qualifier-list
before 'ShadowUpdateProc', and couldn't figure them out, so I got rid
of that package and went back to the vesafb frame buffer, which is
useful for other reasons anyway.)
And here I am now - I can get startx to start up the server with my
current xorg.conf, but after briefly displaying the initial X screen,
it immediately exits for no apparent reason. Looking at the output
and logs, the only error I can see is two messages saying "(EE) FBDEV
(0): FBIOBLANK: Invalid argument".
I'm at an effective dead end here, so I finally break down and write
to this mailing list in the vain hope *someone* will have some clue
where to go from here. I've included my xorg.conf file and Xorg.
0.log output below. At this point, I could easily go with Xfbdev if
I could get the mouse and keyboard to work more effectively, or I
could go with modular xorg if I could get that running well. Advice
on either path is welcome.
Thanks,
-->Steve Bennett
--------------------
Here's my xorg.conf file (edited slightly to get rid of comments and
keep this email shorter -- Yes I know the entries in the "Files"
section are wrong and need fixing...):
Section "Module"
Disable "glx"
Load "freetype"
EndSection
Section "Files"
FontPath "/usr/X11R6/lib/X11/fonts/misc/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"
EndSection
Section "ServerFlags"
EndSection
Section "InputDevice"
Identifier "Keyboard1"
Driver "kbd"
Option "AutoRepeat" "500 30"
Option "XkbRules" "base"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
EndSection
Section "Monitor"
Identifier "Any"
HorizSync 31.5-35.1
VertRefresh 50-70
EndSection
Section "Device"
Identifier "Standard VGA"
VendorName "Unknown"
BoardName "Unknown"
Driver "vga"
EndSection
Section "Device"
Identifier "Vesafb"
Driver "fbdev"
EndSection
Section "Screen"
Identifier "Screen 1"
Device "Vesafb"
Monitor "Any"
DefaultDepth 16
Subsection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection
Section "ServerLayout"
Identifier "Simple Layout"
Screen "Screen 1"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection
-------------
And here's my Xorg.0.log file:
_XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6
_XSERVTransOpen: transport open failed for inet6/ctbaselinux:0
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet6
X.Org X Server 1.5.2
Release Date: 10 October 2008
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.27-11-generic i686
Current Operating System: Linux ctbaselinux 2.6.29.4 #1 Wed Aug 12
18:43:35 EDT 2009 i686
Build Date: 12 August 2009 06:18:07PM
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/usr/var/log/Xorg.0.log", Time: Thu Aug 13 11:57:26 2009
(==) Using config file: "/etc/X11/xorg.conf"
(==) ServerLayout "Simple Layout"
(**) |-->Screen "Screen 1" (0)
(**) | |-->Monitor "Any"
(**) | |-->Device "Vesafb"
(**) |-->Input Device "Mouse1"
(**) |-->Input Device "Keyboard1"
(==) Automatically adding devices
(==) Automatically enabling devices
(WW) The directory "/usr/X11R6/lib/X11/fonts/misc/" does not exist.
Entry deleted from font path.
(WW) The directory "/usr/X11R6/lib/X11/fonts/75dpi/" does not exist.
Entry deleted from font path.
(WW) The directory "/usr/X11R6/lib/X11/fonts/100dpi/" does not exist.
Entry deleted from font path.
(WW) FontPath is completely invalid. Using compiled-in default.
(==) FontPath set to:
/usr/lib/X11/fonts/misc/,
/usr/lib/X11/fonts/TTF/,
/usr/lib/X11/fonts/OTF,
/usr/lib/X11/fonts/Type1/,
/usr/lib/X11/fonts/100dpi/,
/usr/lib/X11/fonts/75dpi/
(==) ModulePath set to "/usr/lib/xorg/modules"
(WW) Open ACPI failed (/var/run/acpid.socket) (No such file or
directory)
(II) No APM support in BIOS or kernel
(II) Loader magic: 0x81803ac
(II) Module ABI versions:
X.Org ANSI C Emulation: 0.4
X.Org Video Driver: 4.1
X.Org XInput driver : 2.1
X.Org Server Extension : 1.1
X.Org Font Renderer : 0.6
(II) Loader running on linux
(--) using VT number 2
(--) PCI:*(0 at 1:0:0) unknown vendor (0x1002) unknown chipset (0x71c5)
rev 0, Mem @ 0x80000000/0, 0x88300000/0, I/O @ 0x00002000/0, BIOS @
0x????????/131072
(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]
(WW) "glx" will not be loaded unless you've specified it to be loaded
elsewhere.
(II) "extmod" will be loaded by default.
(II) "dbe" will be loaded by default.
(II) "glx" will be loaded even though the default is to disable it.
(II) "freetype" will be loaded. This was enabled by default and also
specified in the config file.
(II) "dri" will be loaded by default.
(II) LoadModule: "freetype"
(II) Loading /usr/lib/xorg/modules/fonts//libfreetype.so
(II) Module freetype: vendor="X.Org Foundation & the After X-TT Project"
compiled for 1.5.2, module version = 2.1.0
Module class: X.Org Font Renderer
ABI class: X.Org Font Renderer, version 0.6
(II) Loading font FreeType
(II) LoadModule: "extmod"
(II) Loading /usr/lib/xorg/modules/extensions//libextmod.so
(II) Module extmod: vendor="X.Org Foundation"
compiled for 1.5.2, module version = 1.0.0
Module class: X.Org Server Extension
ABI class: X.Org Server Extension, version 1.1
(II) Loading extension SHAPE
(II) Loading extension MIT-SUNDRY-NONSTANDARD
(II) Loading extension BIG-REQUESTS
(II) Loading extension SYNC
(II) Loading extension MIT-SCREEN-SAVER
(II) Loading extension XC-MISC
(II) Loading extension XFree86-VidModeExtension
(II) Loading extension XFree86-Misc
(II) Loading extension XFree86-DGA
(II) Loading extension DPMS
(II) Loading extension TOG-CUP
(II) Loading extension Extended-Visual-Information
(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 1.5.2, module version = 1.0.0
Module class: X.Org Server Extension
ABI class: X.Org Server Extension, version 1.1
(II) Loading extension DOUBLE-BUFFER
(II) LoadModule: "dri"
(II) Loading /usr/lib/xorg/modules/extensions//libdri.so
(II) Module dri: vendor="X.Org Foundation"
compiled for 1.5.2, module version = 1.0.0
ABI class: X.Org Server Extension, version 1.1
(II) Loading extension XFree86-DRI
(II) LoadModule: "fbdev"
(II) Loading /usr/lib/xorg/modules/drivers//fbdev_drv.so
(II) Module fbdev: vendor="X.Org Foundation"
compiled for 1.5.2, module version = 0.4.0
ABI class: X.Org Video Driver, version 4.1
(II) LoadModule: "mouse"
(II) Loading /usr/lib/xorg/modules/input//mouse_drv.so
(II) Module mouse: vendor="X.Org Foundation"
compiled for 1.5.2, module version = 1.3.0
Module class: X.Org XInput Driver
ABI class: X.Org XInput driver, version 2.1
(II) LoadModule: "kbd"
(II) Loading /usr/lib/xorg/modules/input//kbd_drv.so
(II) Module kbd: vendor="X.Org Foundation"
compiled for 1.5.2, module version = 1.3.1
Module class: X.Org XInput Driver
ABI class: X.Org XInput driver, version 2.1
(II) FBDEV: driver for framebuffer: fbdev
(II) Primary Device is: PCI 01 at 00:00:0
(II) Loading sub module "fbdevhw"
(II) LoadModule: "fbdevhw"
(II) Loading /usr/lib/xorg/modules/linux//libfbdevhw.so
(II) Module fbdevhw: vendor="X.Org Foundation"
compiled for 1.5.2, module version = 0.0.2
ABI class: X.Org Video Driver, version 4.1
(**) FBDEV(0): claimed PCI slot 1 at 0:0:0
(II) FBDEV(0): using default device
(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 0x0000ffff - 0x0000ffff (0x1) IX[B]
[5] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
(**) FBDEV(0): Depth 16, (--) framebuffer bpp 16
(==) FBDEV(0): RGB weight 565
(==) FBDEV(0): Default visual is TrueColor
(==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0)
(II) FBDEV(0): hardware: VESA VGA (video memory: 1875kB)
(II) FBDEV(0): checking modes against framebuffer device...
(II) FBDEV(0): mode "1024x768" test failed
(II) FBDEV(0): mode "800x600" test failed
(II) FBDEV(0): mode "640x480" test failed
(II) FBDEV(0): checking modes against monitor...
(--) FBDEV(0): Virtual size is 800x600 (pitch 800)
(**) FBDEV(0): Built-in mode "current": 48.0 MHz, 46.9 kHz, 75.1 Hz
(II) FBDEV(0): Modeline "current"x0.0 48.00 800 832 928 1024 600
604 608 624 -hsync -vsync -csync (46.9 kHz)
(==) FBDEV(0): DPI set to (96, 96)
(II) Loading sub module "fb"
(II) LoadModule: "fb"
(II) Loading /usr/lib/xorg/modules//libfb.so
(II) Module fb: vendor="X.Org Foundation"
compiled for 1.5.2, module version = 1.0.0
ABI class: X.Org ANSI C Emulation, version 0.4
(**) FBDEV(0): using shadow framebuffer
(II) Loading sub module "shadow"
(II) LoadModule: "shadow"
(II) Loading /usr/lib/xorg/modules//libshadow.so
(II) Module shadow: vendor="X.Org Foundation"
compiled for 1.5.2, module version = 1.1.0
ABI class: X.Org ANSI C Emulation, version 0.4
(II) do I need RAC? No, I don't.
(II) resource ranges after preInit:
[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]
(EE) FBDEV(0): FBIOBLANK: Invalid argument
(==) FBDEV(0): Backing store disabled
(II) FBDEV(0): DPMS enabled
(==) RandR enabled
(II) Initializing built-in extension MIT-SHM
(II) Initializing built-in extension XInputExtension
(II) Initializing built-in extension XTEST
(II) Initializing built-in extension XKEYBOARD
(II) Initializing built-in extension XINERAMA
(II) Initializing built-in extension XFIXES
(II) Initializing built-in extension RENDER
(II) Initializing built-in extension RANDR
(II) Initializing built-in extension COMPOSITE
(II) Initializing built-in extension DAMAGE
(II) Initializing built-in extension XEVIE
(**) Option "Protocol" "auto"
(**) Option "Device" "/dev/input/mice"
(II) Mouse1: Setting mouse protocol to "ExplorerPS/2"
(**) Mouse1: Device: "/dev/input/mice"
(**) Mouse1: Protocol: "auto"
(**) Option "CorePointer"
(**) Mouse1: always reports core events
(**) Option "Device" "/dev/input/mice"
(==) Mouse1: Emulate3Buttons, Emulate3Timeout: 50
(**) Mouse1: ZAxisMapping: buttons 4 and 5
(**) Mouse1: Buttons: 9
(**) Mouse1: Sensitivity: 1
(**) Option "CoreKeyboard"
(**) Keyboard1: always reports core events
(**) Option "Protocol" "standard"
(**) Keyboard1: Protocol: standard
(**) Option "AutoRepeat" "500 30"
(**) Option "XkbRules" "base"
(**) Keyboard1: XkbRules: "base"
(**) Option "XkbModel" "pc105"
(**) Keyboard1: XkbModel: "pc105"
(**) Option "XkbLayout" "us"
(**) Keyboard1: XkbLayout: "us"
(**) Option "CustomKeycodes" "off"
(**) Keyboard1: CustomKeycodes disabled
(II) evaluating device (Mouse1)
(II) XINPUT: Adding extended input device "Mouse1" (type: MOUSE)
(II) evaluating device (Keyboard1)
(II) XINPUT: Adding extended input device "Keyboard1" (type: KEYBOARD)
(II) Mouse1: Setting mouse protocol to "ExplorerPS/2"
(II) Mouse1: ps2EnableDataReporting: succeeded
Could not init font path element /usr/lib/X11/fonts/TTF/, removing
from list!
Could not init font path element /usr/lib/X11/fonts/OTF, removing
from list!
Could not init font path element /usr/lib/X11/fonts/Type1/, removing
from list!
(EE) FBDEV(0): FBIOBLANK: Invalid argument
(II) UnloadModule: "mouse"
(II) UnloadModule: "kbd"
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