On 2/16/22 17:33, Udo Grabowski (IMK) wrote:
On 16/02/2022 17:06, Stephan Althaus wrote:
Hello!
I am looking for hints to diagnose the builtin touchpad.
It should work on the device node /dev/kdmouse and the old PS/2
driver mouse8042
On an older laptop (HP Elitebook 2530p) with OI 2021.10 booted from usb,
the following dtrace script shows "fbt::mouse8042_intr" events:
fbt::mouse8042_intr:return,
fbt::mouse8042_process_msg:return
{
printf("%s returned %d \n", probefunc, arg1);
}
on the newer laptop (Dell Precision 7720) there are no events..
What can i do to dig deeper ?
Any hints are welcome!
Stephan
Under Linux, they appear as a I2C HID device.
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Hello Udo!
prtconf -vd shows that there are devices with 'ISA' in their device
paths. dtrace shows that the keyboard events are passed, the mouse
events are missing.
These modules are loaded:
# modinfo|grep -i 8042
96 fffffffff7cef000 19d0 107 1 i8042 (i8042 nexus driver)
109 fffffffff9b25000 38c0 139 1 kb8042 (PS/2 keyboard driver)
110 fffffffff7897288 1028 155 1 mouse8042 (PS/2 Mouse)
# modinfo|grep mouse
110 fffffffff7897288 1028 155 1 mouse8042 (PS/2 Mouse)
111 fffffffff9b27000 1d90 - 1 vuid3ps2 (mouse events to vuid events)
158 fffffffff9d14000 2528 - 1 usbms (USB mouse streams)
root@dell6510:/home1/home/steven/DTrace# modunload -i 110 && modload -p
drv/mouse8042 && dtrace -s mouse.d
i get no mouse8042 events with mouse.d now looking like this
fbt::mouse8042_open:return,
fbt::mouse8042_close:return,
fbt::mouse8042_wput:return,
fbt::mouse8042_wsrv:return,
fbt::mouse8042_getinfo:return,
fbt::mouse8042_attach:return,
fbt::mouse8042_detach:return,
fbt::mouse8042_intr:return,
fbt::mouse8042_iocnack:return,
fbt::mouse8042_reset_timeout:return,
fbt::mouse8042_initiate_reset:return,
fbt::mouse8042_process_data_msg:return,
fbt::mouse8042_process_msg:return,
fbt::mouse8042_reset_fsm:return
{
printf("%s returned %d \n", probefunc, arg1);
}
snipplet from prtconf -vd
i8042, instance #0
Hardware properties:
name='unit-address' type=string items=1
value='1,60'
name='interrupts' type=int items=2
value=00000001.0000000c
name='reg' type=int items=6
value=00000001.00000060.00000001.00000001.00000064.00000001
Register Specifications:
Bus Type=0x1, Address=0x60, Size=0x1
Bus Type=0x1, Address=0x64, Size=0x1
Interrupt Specifications:
Interrupt Priority=0x5 (ipl 5), vector=0x1 (1)
Interrupt Priority=0x5 (ipl 5), vector=0xc (12)
keyboard, instance #0
Driver properties:
name='ddi-no-autodetach' type=int items=1 dev=none
value=00000001
Hardware properties:
name='compatible' type=string items=1
value='pnpPNP,303'
name='device-type' type=string items=1
value='keyboard'
name='interrupts' type=int items=2
value=00000001.0000000c
name='reg' type=int items=1
value=00000000
name='acpi-namespace' type=string items=1
value='\_SB_.PCI0.LPCB.PS2K'
name='model' type=string items=1
value='System keyboard'
Device Minor Nodes:
dev=(139,0)
dev_path=/pci@0,0/isa@1f/i8042@1,60/keyboard@0:kb8042
spectype=chr type=minor
Device Minor Layered Under:
mod=conskbd accesstype=chr
dev_path=/pseudo/conskbd@0
mouse, instance #0
Driver properties:
name='ddi-no-autodetach' type=int items=1 dev=none
value=00000001
Hardware properties:
name='compatible' type=string items=1
value='pnpPNP,f03'
name='device-type' type=string items=1
value='mouse'
name='reg' type=int items=1
value=00000001
name='interrupts' type=int items=1
value=0000000c
name='acpi-namespace' type=string items=1
value='\_SB_.PCI0.LPCB.PS2M'
name='model' type=string items=1
value='PS/2 Port for PS/2-style Mice'
Device Minor Nodes:
dev=(155,0)
dev_path=/pci@0,0/isa@1f/i8042@1,60/mouse@1:mouse
spectype=chr type=minor
dev_link=/dev/kdmouse
dev=(155,1)
dev_path=/pci@0,0/isa@1f/i8042@1,60/mouse@1:internal_mouse
spectype=chr type=internal
Device Minor Layered Under:
mod=consms accesstype=chr
dev_path=/pseudo/consms@0
Hm. The keyboard light turns on when i press a mouse button on the pad btw..
Any hints are welcome!
Stephan
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