DELL MULTITOUCH HOW TO
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The line starts with S: is the path of the Touchpad device, the full path will be something like /sys/devices/platform/i8042/serio1/input/input5/power/control.ĭisable runtime power-managed by running echo on | sudo tee /sys/devices/platform/i8042/serio1/input/input5/power/control (replace the path with the one for your Touchpad device. Look for your Touchpad device in /proc/bus/input/devices. Disable runtime power management of the Touchpad device and check if the issue persists. If your Touchpad stops working after it has been left unused for awhile, it may be due to runtime power-management.hit a key, drag an icon, after X seconds of inactivity, etc.).

In this case, in the description field, specify the steps to make the touchpad stop working (e.g. This is generally a case of a kernel ( linux) or xorg bug. In case your Touchpad stops working after a while Then, press CTRL+C to exit and execute: cp /var/log/Xorg.0.log ~/Xorg.0.logĪdd as separate attachments ~/evtest and ~/Xorg.0.log to the bug report. Scroll, tap, drag, press buttons, and create various other possible events on the Touchpad. Where the 'X' in 'eventX' is the event number found by typing in a terminal: cat /proc/bus/input/devices

DELL MULTITOUCH HOW TO

If not, please see below:Īfter reading this about how to enter VT and log evtest events, switch to a VT using Crtl+Alt+F2 and enter the following in your terminal: sudo evtest /dev/input/eventX > ~/evtest Hence, one will want to check by uninstalling xserver-xorg-input-synaptics to see if this resolves the issue. If it does, then one may be affected by the transition from xserver-xorg-input-synaptics to libinput. If you see a touchpad device in /proc/bus/input/devices, check by connecting an external mouse to see if that works. Please follow these steps:įile the bug against the linux package by running ubuntu-bug linux.Įnter the following commands in a terminal: cat /proc/bus/input/devices > ~/devicesĪttach ~/devices as separate attachments to your bug report. S: Sysfs=/devices/platform/i8042/serio2/input/input8ī: ABS=11000003 If you do not find something like this, then the bug is in the linux kernel. One should see a touchpad device, like: I: Bus=0011 Vendor=0002 Product=0007 Version=01b1 This is generally a case of a kernel ( linux) or xorg bug.Įxecute at a terminal: cat /proc/bus/input/devices In case your Touchpad doesn't work at all (No response from the Touchpad) Please only consider doing this when you are very sure that the bug is affecting all laptops with that Touchpad model. However, if you think that the bug is a general one with your Touchpad, and is irrespective of the laptop model, you could omit mentioning the laptop model in the description. Sample Description - 'ALPS Touchpad' incorrectly detected as PS/2 mouse in 'Sony Vaio VPCCW16FG' after the kernel upgrade. Laptop model directly from the sticker of the computer.This information should be provided in the bug description itself: General information before filing the bug If the bug turns out to be a bug related to the kernel ( linux) or any other package, bug triagers will assign your bug additionally to that package and mark the task related to xserver-xorg-input-input/synaptics, as invalid. If your are unsure to which package the bug should be filed, or your problem is not listed in any of the categories, then please file your touchpad related bugs against xserver-xorg-input-libinput or xserver-xorg-input-synaptics (if it is installed). Some features of your Touchpad like scrolling, tapping, or dragging don't work as expected.Your Touchpad has the simple features of a mouse, but Touchpad features, like tapping, scrolling, etc.Your Touchpad stops working after a while.Problems with touchpad detection typically fall into one of these categories: General work flow for Triagers and debugging tips.Enabling right button click for clickpads on Ubuntu 12.04 LTS.In case your multitouch features does not work.In case at least one of the Touchpad features work, but does not work correctly and as expected.In case Touchpad features like scrolling, tapping, etc.In case your Touchpad stops working after a while.In case your Touchpad doesn't work at all (No response from the Touchpad).General information before filing the bug.

Dell multitouch