Hi, On 10/03/2014 11:43 AM, Pali Rohár wrote: > For unknown reasons linux psmouse alps driver sometimes receive totally > invalid > packet sequences on Dell Latitude laptops. According to ALPS HW engineers > these > invalid packets do not come from ALPS devices. So it looks like bug in BIOS > and > EC incorrectly split keyboard and touchpad PS/2 data when laptops are under > heavy loads (big I/O together with powersave governor, running on battery). > > There are sequences of invalid packets (which are dropeed) and some sequences > which look like valid. But these valid packets cause random trackstick button > pressing, random cursor moving/jumping and in these condition it is not > possible > to use ALPS device (trackstick+touchpad). > > To prevent random button press and random cursor jumps immediately reset ALPS > device after first invalid packet. This will cause that touchpad and > trackstick > will not respond for one or two seconds and it better then random cursor > jumps. >
This one probably should have: Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1145954 And you may want to add Bug: tags to the relevant patches for the launchpad issues too. While on the topic of tags, once we've agreed upon the return value to use for the 2nd patch, can you please resend with a "Cc: [email protected]" added to all 3 patches? > Signed-off-by: Pali Rohár <[email protected]> > Tested-by: Pali Rohár <[email protected]> Looks good and seems sensible: Acked-by: Hans de Goede <[email protected]> Thanks & Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
