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Pergamon
Tux's lil' helper
Joined: 01 Feb 2004
Posts: 117
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 Posted: Mon Apr 19, 2004 1:29 pm Post subject: Synaptics touchpad makes erratic mouse movements |
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Since a few days, my synaptics mouse pad is no longer reliable. The mouse cursor is often suddently at the screen border. dmesg shows the following errors:
| Code: | Synaptics driver lost sync at byte 4
Synaptics driver lost sync at byte 1
Synaptics driver resynced.
Synaptics driver lost sync at byte 4
Synaptics driver lost sync at byte 1
Synaptics driver lost sync at byte 1
Synaptics driver lost sync at byte 1
Synaptics driver lost sync at byte 1
Synaptics driver lost sync at byte 1
Synaptics driver resynced.
Synaptics driver lost sync at byte 4
Synaptics driver lost sync at byte 1
Synaptics driver resynced.
Synaptics driver lost sync at byte 4
Synaptics driver lost sync at byte 1
Synaptics driver resynced.
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Every few seconds the mouse cursors gets distorted and this makes working a real pain. I'm using X.Org X-Server with KDE 3.2.1 and 2.6.5 kernel.
I don't know if that is related: If keyboard key-repeat starts, it sometimes wont stop after the key is released again. The key will continue to repeat until the next key is pressed.
Any suggestions are appreciated. |
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Radi
Tux's lil' helper
Joined: 09 Jul 2002
Posts: 108
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| Posted: Mon Apr 19, 2004 2:07 pm Post subject: |
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| What kind of notebook do you have? maybe its an older one. Do you use an PS/2 mouse as alternative, i have had the problem with xfree when the PS/2 mouse was not plugged in. |
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dtor
Guru
Joined: 19 Jan 2004
Posts: 461
Location: Indiana, USA
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| Posted: Mon Apr 19, 2004 2:27 pm Post subject: |
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Also:
- do you have an application polling your battery status? Try to increase polling interval.
- do you see "psmouse.c: Bad data from KBC" messages in your dmesg?
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Dmitry |
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Pergamon
Tux's lil' helper
Joined: 01 Feb 2004
Posts: 117
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| Posted: Mon Apr 19, 2004 2:43 pm Post subject: |
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| Radi wrote: | | What kind of notebook do you have? maybe its an older one. Do you use an PS/2 mouse as alternative, i have had the problem with xfree when the PS/2 mouse was not plugged in. |
It is a Acer TracelMate C110, a 1000Mhz Pentium-M Tablet-PC Notebook.
I do not use an external mouse, but X has two mouse interfaces: one for the synaptics touchpad, and one for the touch-screen (a tablet PC basically implements a WACOM serial tablet as second input medium).
Also if I use the pen for position instead of synaptics pad, the mouse cursor sometimes goes to the low-end border of the screen and then on next sync back where it is supposed to be.
Last edited by Pergamon on Mon Apr 19, 2004 8:43 pm; edited 1 time in total |
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Pergamon
Tux's lil' helper
Joined: 01 Feb 2004
Posts: 117
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| Posted: Mon Apr 19, 2004 2:47 pm Post subject: |
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| dtor wrote: | Also:
- do you have an application polling your battery status? Try to increase polling interval.
- do you see "psmouse.c: Bad data from KBC" messages in your dmesg? |
I disabled battery status poling. Currently I think it got a bit better, but there are still every few seconds tons of:
| Code: | Apr 19 16:43:23 tsogyal Synaptics driver lost sync at byte 1
Apr 19 16:43:23 tsogyal Synaptics driver resynced.
Apr 19 16:43:25 tsogyal Synaptics driver lost sync at byte 4
Apr 19 16:43:25 tsogyal Synaptics driver resynced.
Apr 19 16:43:36 tsogyal Synaptics driver lost sync at byte 1
Apr 19 16:43:36 tsogyal Synaptics driver lost sync at byte 1
Apr 19 16:43:36 tsogyal Synaptics driver resynced.
Apr 19 16:43:40 tsogyal Synaptics driver lost sync at byte 4
Apr 19 16:43:40 tsogyal Synaptics driver resynced.
Apr 19 16:43:40 tsogyal Synaptics driver lost sync at byte 1
Apr 19 16:43:40 tsogyal Synaptics driver resynced.
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There is no message like "Bad data from KBC" in dmesg or /var/log/messages. |
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dtor
Guru
Joined: 19 Jan 2004
Posts: 461
Location: Indiana, USA
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| Posted: Mon Apr 19, 2004 3:04 pm Post subject: |
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What is your polling interval?
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Dmitry |
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Pergamon
Tux's lil' helper
Joined: 01 Feb 2004
Posts: 117
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| Posted: Mon Apr 19, 2004 3:23 pm Post subject: |
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| dtor wrote: | | What is your polling interval? |
Sorry if this sounds stupid. Which polling intervall? |
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dtor
Guru
Joined: 19 Jan 2004
Posts: 461
Location: Indiana, USA
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| Posted: Mon Apr 19, 2004 3:36 pm Post subject: |
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No, that's me... instead of "disabled battery polling" I have read that you increated the polling interval. -ENOCOFFEE
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AJerman
n00b
Joined: 16 Apr 2004
Posts: 22
Location: Oklahoma
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| Posted: Mon Apr 19, 2004 6:00 pm Post subject: |
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| Yeah, I have this too, but I haven't done much with the touchpad setup. Let me mess around with it a bit and see if I can come up with anything. |
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