Ok, based on this latest information I'm going to mark this bug as
invalid because the patch added as part of the SRU should be making
things more correct, and the difference appears to be handled
appropriately by modifying the acceleration scheme parameters.
I will also note that the
No nothing wrong...Its just different as the pointer have this
acceleration issue. I tried reducing the acceleration.
By default the xinput feedback for the mouse is:
accelNum is 2
accelDenom is 1
threshold is 4
I reduced acceleration, now the output is:
accelNum is 1
accelDenom is 1
threshold
I'm now a bit confused as to what the actual problem you're seeing is. Is it:
*) Erratic mouse behaviour:
+) pointer moving when not moving the mouse?
+) pointer moving in an incorrect direction when moving the mouse?
+) pointer not moving at a constant rate when moving the mouse at a constant
Sorry for creating this confusion as I was unable to describe the issue
properly. I should have been to the point. This is what I have been
experiencing:
*) Altered mouse sensitivity:
+) Altered acceleration behaviour - pointer takes *longer/shorter* to get to
“full speed” when moving the mouse
** Attachment added: device.record
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/791596/+attachment/2156603/+files/device.record
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Ahhh! Thanks Chris and dart for clearly stating that it's the
acceleration that's wrong. This code path may interfere with the
acceleration, but I would guess that if anything this patch would
restore acceleration to what it should be.
dart, does the new xorg-server feel wrong, or just different
Chris,
I installed xorg from your PPA. The first time I tested, I did not
notice any difference in PPA version and SRU version. But then another
time, when using natty-updates, the mouse sensitivity increased
greatly. So I installed PPA version and the sensitivity came back to
normal.
This is
dart,
You wrote:
I installed xorg from your PPA. The first time I tested, I did not
notice any difference in PPA version and SRU version.
Does this mean that you saw the bug in the PPA version as well, or that
at the time you did *not* see the bug in either the PPA or the SRU
versions?
Thanks!
Chase,
This -- or that at the time you did *not* see the bug in either the PPA
or the SRU versions?
I tried once again. From the stock xorg version, I upgraded to Xorg SRU.
The sensitivity increased. Then I installed PPA version, sensitivity
came back to normal. Why this has not happened the
Thank you for that. I've looked at the patch in question
(503_fix_masked_transformed_valuators), and it looks plausible that
there's a change in behaviour, although I don't see why it would only
manifest after a few minutes' uptime.
It appears that we should revert that patch pending further
Could you please check if the Xserver package in
https://edge.launchpad.net/~raof/+archive/aubergine fixes the mouse
behaviour for you? I've reverted the patch most likely to be the
problem in that package.
Having looked at it further, though, I don't see how you can actually be
hitting the
Chase,
I followed your instructions. I still get the odd pointer behavior.
This is kind of hard for me to explain. With the playback I did not
notice any issue. But with the latest updated xorg, the pointer
movement always *feels* odd. By feeling I mean that I cannot notice it
by just looking
** Changed in: xorg-server (Ubuntu)
Importance: Undecided = Critical
** Changed in: xorg-server (Ubuntu)
Assignee: (unassigned) = Chase Douglas (chasedouglas)
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** Attachment added: term.log
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/791596/+attachment/2151487/+files/term.log
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Title:
** Also affects: xorg-server (Ubuntu Natty)
Importance: Undecided
Status: New
** Also affects: xorg-server (Ubuntu Oneiric)
Importance: Critical
Assignee: Chase Douglas (chasedouglas)
Status: New
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dart,
I tried playing back the recording, but it did not appear to have any
issues. Can you upgrade back to the latest xorg-server-core package and
follow the steps at the end of
https://wiki.ubuntu.com/Multitouch/Testing/uTouchEvEmu#Debugging to play
back the recording on your computer?
If you
** Changed in: xorg-server (Ubuntu Oneiric)
Assignee: Chase Douglas (chasedouglas) = Chris Halse Rogers (raof)
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Title:
Odd Pointer Behavior
** Changed in: xorg-server (Ubuntu Natty)
Importance: Undecided = Critical
** Changed in: xorg-server (Ubuntu Natty)
Milestone: None = natty-updates
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