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#1 2009-09-26 13:11:54

Mad Max
Member
From: Germany
Registered: 2009-03-09
Posts: 39
Website

Synaptics tapping in GNOME

Hi guys,

I've got strange problem: synaptics tapping under Gnome is unreliable - I mean it recognizes not every tap: sometimes several taps in row are successful and then comes one unrecognized one, sometimes I need to tap 4-5 times to get an item selected.
This problem occurs only in GNOME, KDE tapping is smooth and 100% reliable.

To clear some things out:

- Touchpad driver is xf86-input-synaptics,
- fdi policy is configured and SHMConfig in it is "on"
- I tried to tweak all those relevant options with synclient (
    FingerPress           
    MaxTapTime             
    MaxTapMove           
    MaxDoubleTapTime       
    SingleTapTimeout       
    ClickTime               
    FastTaps on/off             
) but it didn't help much... BUT look that X-coordinate, that synclient reads, drops to 1 , when i just tap on the same spot :

  
    time     x    y   z f  w  l r u d m     multi  gl gm gr gdx gdy
   0.000     1 5855   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0
   0.903  3438 2850  34 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   1.003     1 5855   3 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   1.103  3479 2832  56 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   1.203     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   1.303  3436 2781  59 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   1.404     1 5855   5 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   1.504  3378 2766   8 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   1.604  3301 2787  55 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   1.705     1 5855   2 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   1.805  3140 2705  48 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   1.905  3090 2590  56 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   2.006  3088 2529   4 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   2.106  3106 2622  61 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   2.206     1 5855   3 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   2.306  3092 2577  59 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   2.407  3090 2574  60 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   2.507  3093 2567  22 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   2.607  3145 2627  60 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   2.708  3139 2600   9 1  4  0 0 0 0 0  00000000   0  0  0   0   0
    time     x    y   z f  w  l r u d m     multi  gl gm gr gdx gdy
   2.808  3145 2635  61 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   2.908     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   3.008  3166 2626  60 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   3.109  3162 2562  14 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   3.209  3172 2609  38 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   3.309  3174 2602  58 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   3.410     1 5855   2 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   3.510  3167 2604  55 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   3.610  3161 2527   9 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   3.710  3170 2550  33 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   3.811  3175 2560  60 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   3.911     1 5855   3 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   4.011     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   4.111  3212 2537  58 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   4.212     1 5855   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0
   4.312  3256 2565  58 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   4.412     1 5855   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0
   4.512  3196 2605  38 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   4.612  3196 2553  18 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   4.712  3221 2575  18 1  4  0 0 0 0 0  00000000   0  0  0   0   0
    time     x    y   z f  w  l r u d m     multi  gl gm gr gdx gdy
   4.813  3202 2550  56 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   4.913     1 5855   2 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   5.013  3222 2550  60 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   5.114     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   5.214  3216 2537  52 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   5.314  3194 2534  38 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   5.415     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   5.515  3197 2515  59 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   5.615     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   5.716  3191 2544  59 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   5.816     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   5.916     1 5855   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0
   8.021     1 5855   2 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   8.121     1 5855   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0
   8.723  3361 2507  49 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   8.823     1 5855   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0
   8.924  3321 2551  51 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   9.024     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   9.124     1 5855   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0
   9.224     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
    time     x    y   z f  w  l r u d m     multi  gl gm gr gdx gdy
   9.324  3317 2507  53 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   9.425     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   9.525  3300 2497  50 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   9.625     1 5855   2 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   9.725     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
   9.826     1 5855   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0
  10.527  3268 2489  55 1  4  0 0 0 0 0  00000000   0  0  0   0   0
  10.628     1 5855   2 2  5  0 0 0 0 0  00000000   0  0  0   0   0
  10.728     1 5855   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0
  11.530  3286 2426  55 1  4  0 0 0 0 0  00000000   0  0  0   0   0
  11.630     1 5855   1 2  5  0 0 0 0 0  00000000   0  0  0   0   0
  11.730  3249 2459  55 1  4  0 0 0 0 0  00000000   0  0  0   0   0
  11.830  3253 2459   5 1  6  0 0 0 0 0  00000000   0  0  0   0   0
  11.930  3253 2459   0 0  0  0 0 0 0 0  00000000   0  0  0   0   0

Maybe there is some overlapping between internal synaptics AccelFactor and xorg mouse acceleration set with xset? I don't know, but as I sad tapping in KDE is great, but not in GNOME...

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