Scroll of synaptics touchpad stop working suddenly

[Waldemar Silva Júnior]

Binary package hint: xorg-driver-synaptics

After some time i log into KDE the scroll of my synaptics touchpad stop working and only work again if I switch to VT (console - control + alt + f1 for instance) and then come back to X.
That's extremely annoying for me since I'm always needing to use the touchpad.

Some info:

I: Bus=0011 Vendor=0002 Product=0007 Version=0000
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio4/input0
S: Sysfs=/class/input/input9
H: Handlers=mouse1 event8 ts1
B: EV=b
B: KEY=6420 0 70000 0 0 0 0 0 0 0 0
B: ABS=11000003

[Waldemar Silva Júnior (wsjunior)]

This is like the touchpad is configured in xorg.conf:

Section "InputDevice"
        Identifier "Synaptics Touchpad"
        Driver "synaptics"
        Option "SendCoreEvents" "true"
        Option "Device" "/dev/psaux"
        Option "Protocol" "auto-dev"
        Option "HorizScrollDelta" "0"
        Option "SHMConfig" "on"
EndSection

Its odd. It just work again if I switch to console and come back to X.

[Waldemar Silva Júnior (wsjunior)]

Same thing using Gutsy

[Amir Eldor (amireldor)]

Same here on an HP dv6282ea laptop, using Ubuntu (GNOME, not KDE).

Thanks for the going to terminal and back to graphics workaround :)

[Amir Eldor (amireldor)]

forgot to mention: Ubuntu Feisty

[Johne (simsonloverforever)]

same issue here with the 1420n, my xorg.conf sysnaptics input devices section

Section "InputDevice"
 Identifier "Synaptics Touchpad"
 Driver "synaptics"
 Option "SendCoreEvents" "true"
 Option "Device" "/dev/psaux"
 Option "Protocol" "auto-dev"
 Option "HorizScrollDelta" "50"
        Option "SHMConfig" "on"
EndSection

Going to VT and the back to X it works again. This is an really annoying issue.

[finrod_2002 (giocoso10000)]

same thing using gutsy on sony vaio fe41m, with following xorg.conf section:

Section "InputDevice"
         Identifier "Synaptics Touchpad"
         Driver "synaptics"
         Option "SendCoreEvents" "true"
         Option "Device" "/dev/psaux"
         Option "Protocol" "auto-dev"
         Option "HorizScrollDelta" "0"
         Option "SHMConfig" "on"
EndSection

[spiderbatdad (spiderbatdad)]

T-30 Thinkpad 845 Brookdale chipset
Touchpad not detected in 2.6.22-14 or 2.6.24-12 Scrolling does not work.

Section "InputDevice"
 Identifier "Generic Mouse"
 Driver "mouse"
 Option "CorePointer"
 Option "Device" "/dev/input/mice"
 Option "Protocol" "ImPS/2"
EndSection

Failure to correctly write xorg.conf...found in /usr/share/xresprobe/xorg.conf

[spiderbatdad (spiderbatdad)]

Touchpad is scrolling in for both aforementioned kernels after adding "lapic" to the kernel line and running sudo dpkg-reconfigure xserver-xorg selecting keyboard 101.

[Robert W. Brewer (rwb123)]

I'm having this issue in Hardy on an HP Pavilion dv6000 series running amd64. My touchpad worked fine under gutsy (though under that kernel I was forced to boot with "noapic nodebugirq" kernel flags). Specifically the issue I see is that the touchpad works fine when I first boot up, but at some point while using the machine the touchpad scrolling feature will simply stop working. I attempted to see if killing the X server (via ctl-alt-backspace) would correct the problem, but X never came back for some reason. So I rebooted.

[Robert W. Brewer (rwb123)]

After several days of trouble-free use (without a reboot), my touchpad suddenly stopped scrolling again. I was just finishing writing an email in gmail when it happened. I tried switching virtual consoles to console 1 (ctrl-alt-f1) and then switching back. That fixed the problem, and my touchpad is scrolling again.

[minus198 (minus198)]

I can confirm this too. Here is the info from 'dmesg':

[132071.008539] psmouse.c: TouchPad at isa0060/serio1/input0 lost synchronization, throwing 4 bytes away.
[132072.548327] psmouse.c: resync failed, issuing reconnect request
[132077.618945] psmouse.c: Failed to reset mouse on isa0060/serio1
[132079.159570] Synaptics Touchpad, model: 1, fw: 6.3, id: 0x1a0b1, caps: 0xa04713/0x200000
[132079.235490] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input13

acpi-support info:
system-manufacturer:Hewlett-Packard
system-product-name:HP Pavilion dv6500 Notebook PC
system-version:Rev 1

Tell me if you need any more info.

Thanks about the "going to a VTY and back to X"-tip.

[Jad Saklawi (jad-saklawi)]

Same thing here.
Model HP Pavilion dv6000. Distribution version: Hardy 8.04.1.
Works after switching to terminal and back to X.

[domvervin (dominique-vervin)]

Exactly the same here.
Laptop = sony vaio vgn-sz340fp
Touchpad was working fine with gutsy
I migrated to Hardy (8.04)
Stop to work suddenly and in /system/Preferences/Mouse, the Touchpad tab disappeared.
I tried to swith with login console (Ctrl-Alt-F1) and it fixed the touchpad and the tab re-appeared in /system/Preferences/Mouse !!

[Robert W. Brewer (rwb123)]

I upgraded to Ubuntu 8.10 and haven't noticed the issue yet.

[minus198 (minus198)]

I have also upgraded to 8.10 and have not experienced this issue yet.

[penalvch (penalvch)]

Waldemar Silva Júnior, thank you for reporting this bug to Ubuntu. Gutsy reached EOL on April 18th, 2009.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

Is this reproducible in a supported release? If so, could you please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 125670

Please ensure you have xdiagnose installed, and that you click the Yes button for attaching additional debugging information.