ThinkPad T21: X server locks up on exit

Thu Aug 21 11:25:23 PDT 2003

I run FreeBSD 4.8-STABLE on my 256M ThinkPad T21, and have installed
XFree86-4.3.0,1 from packages, along with the Gnome desktop, package
gnome2-2.2.0.

The laptop locks up upon termination of the X session.  When I select
Log Out from the Actions menu, the screen goes to a completely blank 
screen, but nothing further happens.  I do not get back to a text 
console, and neither Ctrl-Alt-Backspace nor Ctrl-Alt-Delete have any 
effect.  My only recourse is to hold the power button for six seconds 
and power the laptop down, and endure the resultant fsck on boot-up.

I used to tolerate this, but on a recent fsck I had some extensive
file system damage, and had to re-install my laptop as a result, so
I'd like to root this out.

How can I tweak my X setup to get it to exit cleanly?

My XF86Config is below, stripped of most comments for brevity.  In 
.xinitrc I have just

exec gnome-session

This lock-up problem happens even when I use the default window
manager (i.e., when I have no .xinitrc).

Farther below is my dmesg output.

What can I do to set some debugging flags to shed some light on
what is happening when the X server shuts down?

Clues and suggestions appreciated.

Thanks,

Jim

Section "Module"
    Load        "dbe"  	# Double buffer extension
    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection
    Load        "type1"
    Load        "freetype"
EndSection
Section "Files"
    RgbPath	"/usr/X11R6/lib/X11/rgb"
    FontPath   "/usr/X11R6/lib/X11/fonts/local/"
    FontPath   "/usr/X11R6/lib/X11/fonts/misc/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/Type1/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/webfonts/"
    FontPath   "/usr/X11R6/lib/X11/fonts/freefont/"
    FontPath   "/usr/X11R6/share/AbiSuite/fonts/"
EndSection
Section "ServerFlags"
EndSection
Section "InputDevice"
    Identifier	"Keyboard1"
    Driver	"Keyboard"
    Option "AutoRepeat" "500 30"
    Option "XkbRules"	"xfree86"
    Option "XkbModel"	"pc101"
    Option "XkbLayout"	"us"
EndSection
Section "InputDevice"
    Identifier	"Mouse1"
    Driver	"mouse"
    Option "Protocol"    "MouseSystems"
    Option "Device"      "/dev/sysmouse"
EndSection
Section "Monitor"
    Identifier  "TP T21"
    HorizSync   31.5 - 48.5
    VertRefresh 50-70
EndSection
Section "Device"
    Identifier	"Standard VGA"
    VendorName	"Unknown"
    BoardName	"Unknown"
    Driver     "vga"
EndSection
Section "Device"
    Identifier  "TP T21 8M S3 Savage IX8"
    Driver      "vesa"
    #VideoRam    8192
    # Insert Clocks lines here if appropriate
EndSection
Section "Screen"
    Identifier  "Screen 1"
    Device      "TP T21 8M S3 Savage IX8"
    Monitor     "TP T21"
    DefaultDepth 16
    Subsection "Display"
        Depth       8
        Modes       "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
EndSection
Section "ServerLayout"
    Identifier  "Simple Layout"
    Screen "Screen 1"
    InputDevice "Mouse1" "CorePointer"
    InputDevice "Keyboard1" "CoreKeyboard"
EndSection

Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD 4.8-STABLE #0: Fri Aug  8 22:01:50 PDT 2003
    root at t21.museum.rain.com:/usr/obj/usr/src/sys/T21
Timecounter "i8254"  frequency 1193182 Hz
CPU: Intel Pentium III (796.54-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x68a  Stepping = 10
  Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
real memory  = 268369920 (262080K bytes)
avail memory = 257294336 (251264K bytes)
Preloaded elf kernel "kernel" at 0xc03c8000.
VESA: v2.0, 8192k memory, flags:0x0, mode table:0xc03533c2 (1000022)
VESA: S3 Incorporated. M7 BIOS
Pentium Pro MTRR support enabled
md0: Malloc disk
Using $PIR table, 11 entries at 0xc00fdee0
apm0: <APM BIOS> on motherboard
apm0: found APM BIOS v1.2, connected at v1.2
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <S3 model 8c12 graphics accelerator> at 0.0 irq 11
pcic0: <TI PCI-1450 PCI-CardBus Bridge> mem 0x50000000-0x50000fff irq 11 at device 2.0 on pci0
pcic0: Polling mode
pcic0: TI12XX PCI Config Reg: [ring enable][speaker enable][pwr save][FUNC pci int + CSC serial isa irq]
pccard0: <PC Card 16-bit bus (classic)> on pcic0
pcic1: <TI PCI-1450 PCI-CardBus Bridge> mem 0x50100000-0x50100fff irq 11 at device 2.1 on pci0
pcic1: Polling mode
pcic1: TI12XX PCI Config Reg: [ring enable][speaker enable][pwr save][FUNC pci int + CSC serial isa irq]
pccard1: <PC Card 16-bit bus (classic)> on pcic1
fxp0: <Intel 82557/8/9 EtherExpress Pro/100(B) Ethernet> port 0x1800-0x183f mem 0xe8100000-0xe811ffff,0xe8120000-0xe8120fff irq 11 at device 3.0 on pci0
fxp0: Ethernet address 00:10:a4:8f:97:24
inphy0: <i82555 10/100 media interface> on miibus0
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pci0: <unknown card> (vendor=0x115d, dev=0x000c) at 3.1 irq 11
csa0: <CS4280/CS4614/CS4622/CS4624/CS4630> mem 0xe8000000-0xe80fffff,0xe8122000-0xe8122fff irq 11 at device 5.0 on pci0
csa: card is Thinkpad 600X/A20/T20
pcm0: <CS461x PCM Audio> on csa0
pcm0: <Cirrus Logic CS4297B ac97 codec>
isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0x1850-0x185f at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0x1860-0x187f irq 11 at device 7.2 on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
chip1: <Intel 82371AB Power management controller> port 0x1040-0x104f at device 7.3 on pci0
orm0: <Option ROMs> at iomem 0xc0000-0xcbfff,0xcc000-0xcd7ff,0xe0000-0xeffff on isa0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
ppc0: cannot reserve I/O port range
ata1-slave: ATAPI identify retries exceeded
ad0: 28615MB <IC25N030ATCS04-0> [58140/16/63] at ata0-master UDMA33
acd0: DVD-ROM <HITACHI DVD-ROM GD-S200> at ata1-master UDMA33
Mounting root from ufs:/dev/ad0s1a