PROBLEM : touchpad doesn't work

1 . The touchpad of my laptop doesn't work with the 2.6 Linux kernel, but works with the 2.5.70

2 . I allways test the new Linux kernel, and my touchpad worked. It works with the Linux kernel 2.5.70, but doesn't work thos the 2.5.75. I use in the XF86Config the device : /dev/psaux. When I start X, the mouse appaears, but I can't move it ! My laptop is a Samsung V20. I try to configure X with /dev/input mouse0 or /dev/input/mice, but it doesn't work.

3. mouse, Xfree, touchpad, /dev/psaux

4. Kernel version :
Linux version 2.6.0-test1 (root@hirashi) (version gcc 3.3.1 20030626 (Debian pre release)) #4 Tue Jul 15 15:51:15 CEST 2003

7.1 :
Envionment :
-------------------------
Linux hirashi 2.6.0-test1 #4 Tue Jul 15 15:51:15 CEST 2003 i686 GNU/Linux

Gnu C                  3.3.1
Gnu make               3.80
util-linux             2.11z
mount                  2.11z
e2fsprogs              1.34-WIP
pcmcia-cs              3.1.33
PPP                    2.4.1
Linux C Library        2.3.1
Dynamic linker (ldd)   2.3.1
Procps                 3.1.9
Net-tools              1.60
Console-tools          0.2.3
Sh-utils               5.0
Modules Loaded         busmouse md5 ipv6 3c589_cs apm nfs lockd sunrpc snd_intel

8x0 snd_ac97_codec snd_mpu401_uart snd_rawmidi snd_seq_device snd_pcm_oss snd_pc m snd_page_alloc snd_timer snd_mixer_oss snd soundcore p4_clockmod freq_table id e_cd i830 ds yenta_socket pcmcia_core isofs zlib_inflate sr_mod cdrom sg ide_scs i scsi_mod eepro100 mii intel_agp agpgart rtc

7.2
/proc/cpuinfo
-------------------------------------
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 1
model name : Intel(R) Celeron(R) CPU 1.70GHz
stepping : 3
cpu MHz : 1695.090
cache size : 128 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fx
sr sse sse2 ss ht tm
bogomips : 3342.33

7.3
busmouse 7740 0 - Live 0xd0178000
md5 4096 1 - Live 0xd01ad000
ipv6 247908 14 - Live 0xd02a6000
3c589_cs 13064 0 - Live 0xd01b2000
apm 18416 1 - Live 0xd01ff000
nfs 97072 2 - Live 0xd0246000
lockd 60784 2 nfs,[unsafe], Live 0xd01e0000
sunrpc 130376 5 nfs,lockd, Live 0xd0225000
snd_intel8x0 30372 0 - Live 0xd019c000
snd_ac97_codec 50052 1 snd_intel8x0, Live 0xd01f1000
snd_mpu401_uart 7808 1 snd_intel8x0, Live 0xd0036000
snd_rawmidi 24608 1 snd_mpu401_uart, Live 0xd01a5000
snd_seq_device 8200 1 snd_rawmidi, Live 0xd0174000
snd_pcm_oss 52260 0 - Live 0xd01d2000
snd_pcm 96164 2 snd_intel8x0,snd_pcm_oss, Live 0xd01b9000
snd_page_alloc 10372 2 snd_intel8x0,snd_pcm, Live 0xd011f000
snd_timer 25220 1 snd_pcm, Live 0xd0194000
snd_mixer_oss 18944 1 snd_pcm_oss, Live 0xd018e000
snd 48996 9 snd_intel8x0,snd_ac97_codec,snd_mpu401_uart,snd_rawmidi,snd_seq_device,snd_pcm_oss,snd_pcm,snd_t imer,snd_mixer_oss, Live 0xd0145000
soundcore 9152 1 snd, Live 0xd0123000
p4_clockmod 4488 0 - Live 0xd00ee000
freq_table 4484 1 p4_clockmod, Live 0xd00e5000
ide_cd 40964 0 - Live 0xd0164000
i830 71852 0 - Live 0xd017b000
ds 15236 3 3c589_cs, Live 0xd0140000
yenta_socket 12928 1 - Live 0xd0110000
pcmcia_core 63680 3 3c589_cs,ds,yenta_socket, Live 0xd0153000
isofs 34872 0 - Live 0xd0129000
zlib_inflate 22144 1 isofs, Live 0xd0118000
sr_mod 16292 0 - Live 0xd00e9000
cdrom 34848 2 ide_cd,sr_mod, Live 0xd0106000
sg 32152 0 - Live 0xd00c8000
ide_scsi 15744 0 - Live 0xd00da000
scsi_mod 74780 3 sr_mod,sg,ide_scsi, Live 0xd00f2000
eepro100 29964 0 - Live 0xd00d1000
mii 5248 1 eepro100, Live 0xd0039000
intel_agp 16796 1 - Live 0xd0026000
agpgart 30760 2 intel_agp, Live 0xd003c000
rtc 12724 0 - Live 0xd002c000

7.4
/proc/ioports
------------------------------
0000-001f : dma1
0020-0021 : pic1
0040-005f : timer
0060-006f : keyboard
0070-0077 : rtc
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0376-0376 : ide1
03c0-03df : vga+
03f6-03f6 : ide0
0cf8-0cff : PCI conf1
1000-10ff : PCI CardBus #03
1100-111f : Intel Corp. 82801DB SMBus
1400-14ff : PCI CardBus #03
1800-181f : Intel Corp. 82801DB USB (Hub #1)
1820-183f : Intel Corp. 82801DB USB (Hub #2)
1840-185f : Intel Corp. 82801DB USB (Hub #3)
1860-186f : Intel Corp. 82801DB ICH4 IDE
1860-1867 : ide0
1868-186f : ide1
18c0-18ff : Intel Corp. 82801DB AC'97 Audio
1c00-1cff : Intel Corp. 82801DB AC'97 Audio
2000-207f : Intel Corp. 82801DB AC'97 Modem
2400-24ff : Intel Corp. 82801DB AC'97 Modem
3000-303f : Intel Corp. 82801BD PRO/100 VE (
3000-303f : eepro100

/proc/iomem
------------------------
00000000-0009f7ff : System RAM
0009f800-0009ffff : reserved
000a0000-000bffff : Video RAM area 000ce000-000cffff : reserved
000e0000-000effff : Extension ROM 000f0000-000fffff : System ROM
00100000-0f6dffff : System RAM
00100000-002493c9 : Kernel code 002493ca-002d787f : Kernel data
0f6e0000-0f6effff : ACPI Tables
0f6f0000-0f6fffff : ACPI Non-volatile Storage 0f700000-0f77ffff : System RAM
0f780000-0fffffff : reserved
10000000-100003ff : Intel Corp. 82801DB ICH4 IDE 10001000-10001fff : Ricoh Co Ltd RL5c475 10400000-107fffff : PCI CardBus #03 10800000-10bfffff : PCI CardBus #03 60000000-60000fff : card services 80000000-8007ffff : Intel Corp. 82845G/GL [Brookdale 88000000-8fffffff : Intel Corp. 82845G/GL [Brookdale d0080000-d00803ff : Intel Corp. 82801DB USB EHCI Con d0080800-d00808ff : Intel Corp. 82801DB AC'97 Audio
d0080800-d00808ff : Intel 82801DB-ICH4 - Controller
d0080c00-d0080dff : Intel Corp. 82801DB AC'97 Audio
d0080c00-d0080dff : Intel 82801DB-ICH4 - AC'97
d0100000-d0103fff : Texas Instruments TSB43AB22/A IEEE-139 d0104000-d0104fff : Intel Corp. 82801BD PRO/100 VE (
d0104000-d0104fff : eepro100
d0105000-d01057ff : Texas Instruments TSB43AB22/A IEEE-139 e0000000-efffffff : Intel Corp. 82845G/GL [Brookdale ff800000-ffbfffff : reserved
fffffc00-ffffffff : reserved

7.5 : lspci -vvv
-----------------------
00:00.0 Host bridge: Intel Corp. 82845G/GL [Brookdale-G] Chipset Host Bridge (rev 01)
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-

       Latency: 0
       Region 0: Memory at e0000000 (32-bit, prefetchable) [size=256M]
       Capabilities: [e4] #09 [1105]

00:02.0 VGA compatible controller: Intel Corp. 82845G/GL [Brookdale-G] Chipset Integrated Graphics Device (rev 01) (prog-if 00 [VGA])
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 10
Region 0: Memory at 88000000 (32-bit, prefetchable) [size=128M]
Region 1: Memory at 80000000 (32-bit, non-prefetchable) [size=512K]
Capabilities: [d0] Power Management version 1
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:1d.0 USB Controller: Intel Corp. 82801DB USB (Hub #1) (rev 01) (prog-if 00 [UHCI])
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 10
Region 4: I/O ports at 1800 [size=32]

00:1d.1 USB Controller: Intel Corp. 82801DB USB (Hub #2) (rev 01) (prog-if 00 [UHCI])
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin B routed to IRQ 10
Region 4: I/O ports at 1820 [size=32]

00:1d.2 USB Controller: Intel Corp. 82801DB USB (Hub #3) (rev 01) (prog-if 00 [UHCI])
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin C routed to IRQ 5
Region 4: I/O ports at 1840 [size=32]

00:1d.7 USB Controller: Intel Corp. 82801DB USB EHCI Controller (rev 01) (prog-if 20 [EHCI])
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin D routed to IRQ 3
Region 0: Memory at d0080000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB PCI Bridge (rev 81) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR+

       Latency: 0
       Bus: primary=00, secondary=02, subordinate=03, sec-latency=32
       I/O behind bridge: 00003000-00003fff
       Memory behind bridge: d0100000-d01fffff
       Prefetchable memory behind bridge: fff00000-000fffff
       BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-

00:1f.0 ISA bridge: Intel Corp. 82801DB ISA Bridge (LPC) (rev 01)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
00:1f.1 IDE interface: Intel Corp. 82801DB ICH4 IDE (rev 01) (prog-if 8a [Master SecP PriP])
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at <unassigned>
Region 1: I/O ports at <unassigned>
Region 2: I/O ports at <unassigned>
Region 3: I/O ports at <unassigned>
Region 4: I/O ports at 1860 [size=16]
Region 5: Memory at 10000000 (32-bit, non-prefetchable) [size=1K]

00:1f.3 SMBus: Intel Corp. 82801DB SMBus (rev 01)
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin B routed to IRQ 5
Region 4: I/O ports at 1100 [size=32]

00:1f.5 Multimedia audio controller: Intel Corp. 82801DB AC'97 Audio (rev 01)
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-

       Latency: 0
       Interrupt: pin B routed to IRQ 5
       Region 0: I/O ports at 1c00 [size=256]
       Region 1: I/O ports at 18c0 [size=64]
       Region 2: Memory at d0080c00 (32-bit, non-prefetchable) [size=512]
       Region 3: Memory at d0080800 (32-bit, non-prefetchable) [size=256]
       Capabilities: [50] Power Management version 2
               Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA 

PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:1f.6 Modem: Intel Corp. 82801DB AC'97 Modem (rev 01) (prog-if 00 [Generic])
Subsystem: Samsung Electronics Co Ltd: Unknown device 2115
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin B routed to IRQ 5
Region 0: I/O ports at 2400 [size=256]
Region 1: I/O ports at 2000 [size=128]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:03.0 CardBus bridge: Ricoh Co Ltd RL5c475 (rev 80)
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-

       Latency: 168
       Interrupt: pin A routed to IRQ 10
       Region 0: Memory at 10001000 (32-bit, non-prefetchable) [size=4K]
       Bus: primary=02, secondary=03, subordinate=06, sec-latency=176
       Memory window 0: 10400000-107ff000 (prefetchable)
       Memory window 1: 10800000-10bff000
       I/O window 0: 00001000-000010ff
       I/O window 1: 00001400-000014ff
       BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt+ 

PostWrite+
16-bit legacy interface ports at 0001

02:08.0 Ethernet controller: Intel Corp. 82801BD PRO/100 VE (LOM) Ethernet Controller (rev 81)
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 66 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 3
Region 0: Memory at d0104000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at 3000 [size=64]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-

02:0d.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) (prog-i f 10 [OHCI])
Subsystem: Samsung Electronics Co Ltd: Unknown device c008
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (500ns min, 1000ns max), cache line size 08
Interrupt: pin A routed to IRQ 10
Region 0: Memory at d0105000 (32-bit, non-prefetchable) [size=2K]
Region 1: Memory at d0100000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

7.6 : /proc/scsi/scsi
------------------------------
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: TOSHIBA Model: DVD-ROM SD-R2212 Rev: 1713
Type: CD-ROM ANSI SCSI revision: 02

7.7 :
/proc/bus/input/devices
---------------------------------
I: Bus=0011 Vendor=0002 Product=0007 Version=0000
N: Name="Synaptics Synaptics TouchPad"
P: Phys=isa0060/serio4/input0
H: Handlers=event0 evbug
B: EV=1b
B: KEY=670000 0 0 0 0 0 0 0 0
B: ABS=1000003
B: MSC=4

I: Bus=0011 Vendor=0001 Product=0002 Version=ab83
N: Name="AT Set 2 keyboard"
P: Phys=isa0060/serio0/input0
H: Handlers=kbd event1 evbug
B: EV=120003
B: KEY=4 2000000 c061f9 fbc9d621 efdfffdf ffefffff ffffffff fffffffe
B: LED=7

/proc/bus/input/handlers
--------------------------------
N: Number=0 Name=kbd
N: Number=1 Name=mousedev Minor=32
N: Number=2 Name=evdev Minor=64
N: Number=3 Name=evbug

I'm guessing this is another case of Synaptic support breaking touchpads. at least that's what happened to me. Pavel Machek produced a patch a while ago,

<url: http://groups.google.com/groups?selm=6YmH.3AF.5%40gated-at.
bofh.it&oe=UTF-8&output=gplain >

[ ... ]

Terje

The new touchpad code in the kernel (I have just learned, tested, and am now using) requires the new XFree driver available at:
http://www.tuxmobile.com/touchpad_driver.html
The latest version of the drivrer can be built outside of X source, or there are binaries available. Included in the package are good docs on installation and use. Important note: for kernel 2.5.X > 70 the driver now uses the event interface, so make sure you configure your kernel with event interface support either on or as a module.

You can contact me directly for more info, or just search the web for more configuration information.

--Brandon