I won't report again with latest kernel because (from my experience) I
do not expect it to be solved (or that it solved because of people
reporting bugs), but I still provide the following information to save
the time for those who wish to find a workaround - I do not know a
workaround, but I know the following would not work:

The following methods would not prevent the desktop to rotate automatically 
after login:
- delete /lib/udev/accelerometer
- comment out the only line in /lib/udev/rules.d/61-accelerometer.rules

Since the rotate-after-login does not alter input matrix, which is still
horizental, touch-screen will be useless right after login, until you
rotate the screen back (with xrandr -o randr). If, instead of preventing
auto-rotate-after-login, you wish to rotate input matrix as well to make
the machine at least usable, the following command would not work:

$ xinput set-prop 9 --type=float "Coordinate Transformation Matrix" 0 -1
1 1 0 0 0 0 1

The effect of that command is zero: input matrix remain the same
(horizental) while the screen is auto-rotated to vertical.

If you wish to study the issue, a starting point is the accelerometer device, 
which can be found in
/proc/bus/input/devices

Find out the event device (in my case event4) then you can find out which 
driver drives it by:
$ cat /sys/devices/platform/asus_laptop/input/input4/device/driver

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1326885

Title:
  desktop start rotated

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1326885/+subscriptions

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to