On Thu, May 1, 2008 at 11:38 PM, Denver Gingerich <[EMAIL PROTECTED]> wrote: > On 2.6.22-20080123.4 and newer master kernels (specifically > 2.6.22-20080123.4, 2.6.25-20080430.1, 2.6.25-20080501.2, and > 2.6.25-20080501.3), the cursor cannot move from side to side with the > touchpad, only up and down. Using a USB mouse works fine. > > Here is an example X session: > 1. start X, cursor is in the center of the screen; touchpad has not been > touched > 2. touch touchpad, cursor immediately jumps to the left side of the screen > 3. move around on touchpad, cursor stays "stuck" to the left side of > the screen, but moves up and down relative to how much vertical > touchpad movement there is > 4a. release finger from touchpad, cursor immediately jumps to the > top-left corner of the screen (this may not be exactly the top-left > corner, but it is always on the left-most column of pixels within the > top 50-100 rows of pixels) > 4b. move finger across right edge of touchpad, cursor moves very > quickly from left to right across the screen (there appears to be a > small area between the touchpad and the right third of the drawing pad > where left to right motion is detected) > > Performing steps 2-4 consistently gives the same results within the > same X session and across reboots. > > The cursor moves correctly using the touchpad on the 2.6.22-20070815.3 > master kernel. When I get some time, I will look at the diffs between > 20080123.4 and 20070815.3 to determine where the touchpad code changed > so I can reduce the number of kernels I need to test to find the > problem.
The problem is present in 2.6.22-2008115.1 but not in 2.6.22-20080113.1. So the problem is somewhere between the following commits (excluding the first, including the second): http://dev.laptop.org/git?p=olpc-2.6;a=commitdiff;h=f8709785a433a5a3344304f9796fb26a65d69a1e http://dev.laptop.org/git?p=olpc-2.6;a=commitdiff;h=b7d12f82913cdaf40f527628c5957bb0eae67fc2 I will attempt to narrow it down further when I get a chance. Denver _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel