Ubuntu
linux package

  1. Bug #550625
  2. Comment #44

Comment 44 for bug 550625

Revision history for this message
Chase Douglas (chasedouglas) wrote : Re: Alps touchpad is recognized but neither gsynaptics nor mouse preferences work

I would like to do some initial debugging to figure out what is going on. I would appreciate it if someone could perform the following steps:

$ sudo sh -c "echo ':mod:psmouse' > /sys/kernel/debug/tracing/set_ftrace_filter"
$ sudo sh -c "echo 1 > /sys/kernel/debug/tracing/tracing_enabled"
$ sudo sh -c "echo 1 > /sys/kernel/debug/tracing/tracing_on"
$ sudo sh -c "echo function_graph > /sys/kernel/debug/tracing/current_tracer"

Now run your finger across the trackpad once.

$ bzip2 -c /sys/kernel/debug/tracing/trace > trace.bz2
$ sudo sh -c "echo nop > /sys/kernel/debug/tracing/current_tracer"

Finally, attach trace.bz2 here.

Thanks