>Synopsis: Elantech touchpad v2 detected but synaptics fails
>Category: kernel
>Environment:
System : OpenBSD 5.3
Details : OpenBSD 5.3 (EEEPC) #5: Tue May 14 11:51:36 CEST 2013
[email protected]
:/var/src/sys/arch/i386/compile/EEEPC
Architecture: OpenBSD.i386
Machine : i386
>Description:
My laptop have an Elantech touchpad. It's a v2 generation, firmware
version 0x140200.
OpenBSD -current contains patchs for supporting this kind of
touchpad via synaptics.
On my computer, -current kernel pms driver detects and initializes
it successfully.
But synaptics xserver driver fail to load.
Kernel report a timeout (pckbc: command timeout).
>How-To-Repeat:
- Computer with Elantech touchpad (v2, firmware 0x140200)
- Boot OpenBSD -current kernel
- Touchpad is detected
- Start X11
- Synaptics module fails to initialize
>Fix:
Patching pms kernel driver, using values from linux kernel
fix the bug on my laptop (but I didn't investigated why).
Synaptics loads without error, and touchpad is fully supported.
--- dev/pckbc/pms-new.c Mon May 13 12:43:22 2013
+++ dev/pckbc/pms.c Tue May 14 11:59:15 2013
@@ -1492,22 +1492,22 @@
elantech_ps2_cmd(sc, ELANTECH_PS2_CUSTOM_COMMAND) ||
elantech_ps2_cmd(sc, 0x10) ||
elantech_ps2_cmd(sc, ELANTECH_PS2_CUSTOM_COMMAND) ||
- elantech_ps2_cmd(sc, 0x54) ||
+ elantech_ps2_cmd(sc, 0xc4) ||
pms_set_scaling(sc, 1) ||
elantech_ps2_cmd(sc, ELANTECH_PS2_CUSTOM_COMMAND) ||
elantech_ps2_cmd(sc, ELANTECH_CMD_WRITE_REG) ||
elantech_ps2_cmd(sc, ELANTECH_PS2_CUSTOM_COMMAND) ||
elantech_ps2_cmd(sc, 0x11) ||
elantech_ps2_cmd(sc, ELANTECH_PS2_CUSTOM_COMMAND) ||
- elantech_ps2_cmd(sc, 0x88) ||
- pms_set_scaling(sc, 1) ||
- elantech_ps2_cmd(sc, ELANTECH_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_cmd(sc, 0x8a) ||
+ pms_set_scaling(sc, 1)) //||
+ /*elantech_ps2_cmd(sc, ELANTECH_PS2_CUSTOM_COMMAND) ||
elantech_ps2_cmd(sc, ELANTECH_CMD_WRITE_REG) ||
elantech_ps2_cmd(sc, ELANTECH_PS2_CUSTOM_COMMAND) ||
elantech_ps2_cmd(sc, 0x21) ||
elantech_ps2_cmd(sc, ELANTECH_PS2_CUSTOM_COMMAND) ||
elantech_ps2_cmd(sc, 0x88) ||
- pms_set_scaling(sc, 1))
+ pms_set_scaling(sc, 1))*/
return (-1);
/* Read back reg 0x10 to ensure hardware is ready. */
dmesg:
OpenBSD 5.3 (EEEPC) #5: Tue May 14 11:51:36 CEST 2013
[email protected]:/var/src/sys/arch/i386/compile/EEEPC
cpu0: Intel(R) Atom(TM) CPU N455 @ 1.66GHz ("GenuineIntel" 686-class) 1.67
GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,NXE,LONG,SSE3,DTES64,MWAIT,DS-CPL,EST,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,LAHF,PERF
real mem = 1063383040 (1014MB)
avail mem = 1034997760 (987MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 04/12/11, BIOS32 rev. 0 @ 0xf0010,
SMBIOS rev. 2.6 @ 0xf0760 (31 entries)
bios0: vendor American Megatrends Inc. version "0703" date 04/12/2011
bios0: ASUSTeK Computer INC. 1001PXD
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC MCFG ECDT OEMB HPET GSCI SSDT SLIC
acpi0: wakeup devices P0P1(S4) P0P4(S4) P0P5(S4) P0P6(S4) P0P7(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: apic clock running at 166MHz
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Atom(TM) CPU N455 @ 1.66GHz ("GenuineIntel" 686-class) 1.67
GHz
cpu1:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,NXE,LONG,SSE3,DTES64,MWAIT,DS-CPL,EST,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE,LAHF,PERF
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
ioapic0: misconfigured as apic 1, remapped to apid 2
acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255
acpiec0 at acpi0
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 4 (P0P4)
acpiprt2 at acpi0: bus 2 (P0P5)
acpiprt3 at acpi0: bus -1 (P0P6)
acpiprt4 at acpi0: bus 1 (P0P7)
acpicpu0 at acpi0: C2, C1, PSS
acpicpu1 at acpi0: C2, C1, PSS
acpitz0 at acpi0: critical temperature is 98 degC
acpibat0 at acpi0: BAT0 model "1001PXD" serial type LION oem "ASUS"
acpiac0 at acpi0: AC unit online
acpiasus0 at acpi0
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
acpibtn2 at acpi0: PWRB
bios0: ROM list: 0xc0000/0xda00!
cpu0: Enhanced SpeedStep 1667 MHz: speeds: 1667, 1333, 1000 MHz
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Intel Pineview DMI" rev 0x00
vga1 at pci0 dev 2 function 0 "Intel Pineview Video" rev 0x00
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
intagp0 at vga1
agp0 at intagp0: aperture at 0xd0000000, size 0x10000000
inteldrm0 at vga1: apic 2 int 16
drm0 at inteldrm0
"Intel Pineview Video" rev 0x00 at pci0 dev 2 function 1 not configured
azalia0 at pci0 dev 27 function 0 "Intel 82801GB HD Audio" rev 0x02: msi
azalia0: codecs: Realtek ALC269
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 82801GB PCIE" rev 0x02: apic 2 int 16
pci1 at ppb0 bus 4
ppb1 at pci0 dev 28 function 1 "Intel 82801GB PCIE" rev 0x02: apic 2 int 17
pci2 at ppb1 bus 2
athn0 at pci2 dev 0 function 0 "Atheros AR9285" rev 0x01: apic 2 int 17
athn0: AR9285 rev 2 (1T1R), ROM rev 14, address 74:2f:68:8c:f3:14
ppb2 at pci0 dev 28 function 3 "Intel 82801GB PCIE" rev 0x02: apic 2 int 19
pci3 at ppb2 bus 1
alc0 at pci3 dev 0 function 0 "Attansic Technology L2C" rev 0xc1: msi,
address 14:da:e9:3b:c3:4b
atphy0 at alc0 phy 0: F2 10/100 PHY, rev. 5
uhci0 at pci0 dev 29 function 0 "Intel 82801GB USB" rev 0x02: apic 2 int 23
uhci1 at pci0 dev 29 function 1 "Intel 82801GB USB" rev 0x02: apic 2 int 19
uhci2 at pci0 dev 29 function 2 "Intel 82801GB USB" rev 0x02: apic 2 int 18
uhci3 at pci0 dev 29 function 3 "Intel 82801GB USB" rev 0x02: apic 2 int 16
ehci0 at pci0 dev 29 function 7 "Intel 82801GB USB" rev 0x02: apic 2 int 23
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
ppb3 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xe2
pci4 at ppb3 bus 5
pcib0 at pci0 dev 31 function 0 "Intel NM10 LPC" rev 0x02
ahci0 at pci0 dev 31 function 2 "Intel 82801GR AHCI" rev 0x02: msi, AHCI 1.1
scsibus0 at ahci0: 32 targets
sd0 at scsibus0 targ 0 lun 0: <ATA, WDC WD3200BPVT-8, 01.0> SCSI3 0/direct
fixed naa.50014ee205fede22
sd0: 305245MB, 512 bytes/sector, 625142448 sectors
ichiic0 at pci0 dev 31 function 3 "Intel 82801GB SMBus" rev 0x02: apic 2
int 21
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 1GB DDR3 SDRAM PC3-10600 SO-DIMM
usb1 at uhci0: USB revision 1.0
uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb2 at uhci1: USB revision 1.0
uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb3 at uhci2: USB revision 1.0
uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb4 at uhci3: USB revision 1.0
uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pms0: Elantech Touchpad, version 2
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
mtrr: Pentium Pro MTRR support
uvideo0 at uhub0 port 6 configuration 1 interface 0 "Azurewave USB 2.0 UVC
VGA WebCam" rev 2.00/12.04 addr 2
video0 at uvideo0
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
root on sd0a (ec0f1db50330855e.a) swap on sd0b dump on sd0b
