Bug 809558 - touchpad pointer movement nearly unusable
touchpad pointer movement nearly unusable
Product: Fedora
Classification: Fedora
Component: synaptics (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Orphan Owner
Fedora Extras Quality Assurance
Depends On:
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Reported: 2012-04-03 12:18 EDT by Marcus Moeller
Modified: 2012-04-04 04:36 EDT (History)
1 user (show)

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Doc Type: Bug Fix
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Last Closed: 2012-04-04 04:35:26 EDT
Type: Bug
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Description Marcus Moeller 2012-04-03 12:18:32 EDT
Description of problem:
With the latest synaptics package, it is now very difficult to do small movements (e.g. for clicking a small icon or link), because the pointer keeps on moving while the finger rests on the touchpad.

This is shows in synclient:
$ synclient
    CoastingSpeed           = 0
    CoastingFriction        = 50
   PressureMotionMinZ      = format mismatch (32)
   PressureMotionMaxZ      = format mismatch (32)
    PressureMotionMinFactor = 0
    PressureMotionMaxFactor = 0

Notice the error with the PressureMotion settings.

Version-Release number of selected component (if applicable):

Apparently a new type of properties was introduced, called cardinals.
These do not (yet) seem to be supported by synclient and xinput.

See this patch proposed in June:
or in git:

Which would explain the error I see in xinput:
Synaptics Pressure Motion (292):		... of unknown type CARDINAL
which may just be the meaning of "32" in synclient:
PressureMotionMinZ      = format mismatch (32)

I'm not an expert on X11, but XA_CARDINAL seems to be an integer, so
it should be fairly easy to add support. Or to revert back to
"integer" as a hotfix.
Comment 1 Marcus Moeller 2012-04-04 04:35:26 EDT
fixed in xorg-x11-drv-synaptics-

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