Re: Mouse/Keyboard hangs..

[Bernd Schubert <bernd-schubert@web.de>]

Hi,

did you also try to disable apm (so disable acpi and apm) ?

On my thinpad R31 a loop reading of /proc/apm makes mouses and keyboard usage 
almost impossible (it is said that its the fault of the BIOS), perhaps your 
problem is related.

Bernd

On Monday 10 February 2003 09:23, John Clemens wrote:
> Hi all..
>
> I'm having an issue with my laptop.. the same issue i've had for since I
> baught it..  Under linux the mouse (synaptics touchpad) and/or keyboard
> will suddenly lock.  All input stops.  I can telnet in and shutdown
> cleanly, but that doesn't help recover that I've got on my screen in X (or
> the console).
>
> Hardware: HP n5430 laptop, synaptics touchpad, trident XP graphics,
> standard low-end laptop.
>
> Here's the really odd part.  When it happens, if i notice quickly enough
> and hit the power switch on my laptop for just a split second (not the 5
> seconds to power off).. it sometimes comes back!  It's happened twice
> while typing this email in pine using a text console (no X, no mouse).
> But if I wait too long (a few seconds)...no matter how many times i nudge
> the power switch, it never comes back.  Sometimes it's more frequent then
> others.. sometimes I'll go for days/weeks without seeing it.
>
> I've been seeing this since I got the laptop, and I've run almost every
> 2.4.x (x > ~10) and a lot of 2.5 kernels on here (currently, 2.5.54).
> The behavior is a little different recently though with the 2.5 series.
> Now, sometimes when it comes back, i get the character i was typing
> repeated (as if a key was stuck) until i hit another key.  This change
> could be related to the new i8042 changes in 2.5, I'm not sure.
>
> I've tried : APIC, no APIC.
> 	     ACPI, no ACPI.
> 	     ALI IRQ router, ACPI IRQ router.
> 	     psmouse_noext command line arg.
> 	     powernow-ing the CPU down to 500Mhz (850Mhz duron... heat
> 							related?)
>
> All to no avial.  The only possible reason I can think of that hitting the
> power button could help is that triggers ACPI, which uses IRQ 9...
> and I seem to remember something about IRQ 2 (cascade) and IRQ 9 (ACPI)
> being one in the same, really.. maybe we missed an interrupt somewhere and
> hitting the power switch forces IRQ 2 to trigger, somehow triggering IRQ
> 1 (keyboard) as well?  It's a stretch and my understanding of PC IRQ
> logic is sketchy at best.
>
> Does anyone have any ideas?
>
> /proc/interrupts and relevant dmesg output is below the sig..
> thanks,
> john.c
>
> - --
> John Clemens          http://www.deater.net/john
> john@deater.net     ICQ: 7175925, IM: PianoManO8
>       "I Hate Quotes" -- Samuel L. Clemens
>
> Linux diana 2.5.54 #14 Sat Jan 4 00:02:14 EST 2003 i686 unknown
>
>            CPU0
>   0:  615936502          XT-PIC  timer
>   1:       4574          XT-PIC  i8042
>   2:          0          XT-PIC  cascade
>   8:          1          XT-PIC  rtc
>  11:   24012204          XT-PIC  eth0
>  12:         52          XT-PIC  i8042
>  14:     285204          XT-PIC  ide0
>  15:     628739          XT-PIC  ide1
> NMI:          0
> LOC:          0
> ERR:          0
>
> dmesg:
> ....
> ACPI: RSDP (v000 PTLTD                      ) @ 0x000f7c20
> ACPI: RSDT (v001 PTLTD    RSDT   01540.00000) @ 0x0fffcc46
> ACPI: FADT (v001 ALI    M1533    01540.00000) @ 0x0fffef64
> ACPI: BOOT (v001 PTLTD  $SBFTBL$ 01540.00000) @ 0x0fffefd8
> ACPI: DSDT (v001 COMPAL      736 01540.00000) @ 0x00000000
> ACPI: BIOS passes blacklist
> ACPI: MADT not present
> Building zonelist for node : 0
> Kernel command line: BOOT_IMAGE=Linux ro root=305 ide0=ata66
> psmouse_noext=1 ide_setup: ide0=ata66
> Local APIC disabled by BIOS -- reenabling.
> Found and enabled local APIC!
> Initializing CPU#0
> Detected 849.376 MHz processor.
> ....
> Enabling disabled K7/SSE Support.
> CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
> CPU: L2 Cache: 64K (64 bytes/line)
> CPU:     After generic, caps: 0383fbff c1c7fbff 00000000 00000000
> Intel machine check architecture supported.
> Intel machine check reporting enabled on CPU#0.
> Machine check exception polling timer started.
> CPU: AMD mobile AMD Duron(tm) Processor stepping 01
> ....
> device class 'input': registering
> register interface 'mouse' with class 'input'
> mice: PS/2 mouse device common for all mice
> register interface 'event' with class 'input'
> input: PS/2 Generic Mouse on isa0060/serio1
> serio: i8042 AUX port at 0x60,0x64 irq 12
> input: AT Set 2 keyboard on isa0060/serio0
> serio: i8042 KBD port at 0x60,0x64 irq 1
> ....
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/