Hi Luca et al, Several people have been finding the PS/2 keyboard and mouse suddenly stop working a few hours after loading the asus_atk0110 module on machines using the Asus P7P55D or P7P55D-E board. For example: GSR wrote[1]: > Newly installed machine and every few hours the PS/2 keyboard dies > leaving a key stuck, but the USB mouse still works. Focusing different > windows shows something being typed or a modifier key taking effect > (depends, each time is a different key [...] > Accesing the machine via ssh shows the system still works, allows > changing VT with chvt (just to see what they have, no input allowed), > killing programs or rebooting, but no obvious way to recover the kbd > other than restart. [...] > ACPI: EC: GPE storm detected, transactions will use polling mode > atkbd serio0: Unknown key pressed (translated set 2, code 0x8b on isa0060/serio0). > atkbd serio0: Use 'setkeycodes e00b <keycode>' to make it known. [...] > DMI 2.6 present. > DMI: System manufacturer System Product Name/P7P55D, BIOS 1807 07/22/2010 [...] > After searching some more and finding I am not alone with respect to > stuck keyboard, I also found that someone suggests (in > https://bugzilla.redhat.com/show_bug.cgi?id=676446 ) to invoke > > echo -n reconnect > /sys/devices/platform/i8042/serio0/drvctl > > and so far it seems to recover the keyboard Some people reporting the problem cc-ed. Problem seems to exist in kernels as old as 2.6.32 and as new as 3.3-rc6. >From [2] I see that you tracked it down to a BIOS problem. So I am curious: would there be a way to detect affected machines and automatically work around this? Toy patch just to give the idea follows. [1] http://bugs.debian.org/662895 [2] http://thread.gmane.org/gmane.linux.drivers.sensors/24194/focus=26426 diff --git i/drivers/hwmon/asus_atk0110.c w/drivers/hwmon/asus_atk0110.c index 00e98517f94c..494090df89f2 100644 --- i/drivers/hwmon/asus_atk0110.c +++ w/drivers/hwmon/asus_atk0110.c @@ -38,6 +38,19 @@ static const struct dmi_system_id __initconst atk_force_new_if[] = { { } }; +static const struct dmi_system_id __initconst atk0110_blacklist[] = { + { + /* http://bugs.debian.org/662895 */ + .ident = "Asus P7P55D", + .matches = { + DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."), + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "P7P55D") + } + }, + { } +}; + /* Minimum time between readings, enforced in order to avoid * hogging the CPU. */ @@ -1439,6 +1452,9 @@ static int __init atk0110_init(void) if (dmi_check_system(atk_force_new_if)) new_if = true; + if (dmi_check_system(atk0110_blacklist)) + return -ENODEV; + ret = acpi_bus_register_driver(&atk_driver); if (ret) pr_info("acpi_bus_register_driver failed: %d\n", ret); _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
