Elan touchpad works after initial boot but but then disappears. Sometimes it is the I2C HID device that needs to be uninstalled and then reinstalled to bring the pointer back. Sometimes it is ELAN input device in device manager that need to be reinstalled to get the pointer back. Sometimes neither action brings the pointer to life.Sometime I have seen the ETDservice exe has not loaded so clicking on the executable brings the pointer back but there is no telling when it might disappear again.

This is a factory repaired laptop and the trouble started shortly after receiving this replacement. The problem did not change from Windows 11 22H2 to 23H2. Warranty expired November 2023, one month after receiving the replacement.


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It seems like you've already taken several steps to troubleshoot the issue with the touchpad on your HP Pavilion X360 2-in-1 laptop. Since you've done a driver reinstall and a clean reinstall of Windows 11, and the problem persists, it's clear that there may be an underlying issue that requires a more in-depth approach. Here are some additional steps you can try.

My elan touchpad input device stopped working and I got the error "Currently, this hardware device is not connected to the computer. (Code 45)." I tried the trick of uninstalling the driver and restarting my device but it has not reinstalled. I'm having trouble figuring out how to reinstall it when the device doesn't even show up in device manager or hidden devices anymore. I've tried finding drivers on the HP website but it doesn't show this exact driver in keyboard, mouse, and input devices. Still, I installed the drivers here just to be safe and it didn't work. 


To clarify as well, this didn't exactly pop up with windows 11. I had this problem in windows 10, then took my laptop for unrelated repairs to best buy and it seemed to be fixed somehow. Then downloaded windows 11 and it started happening again. Since then, this has happened once more but it seems to randomly fix itself - it had been working for months before now. I've similarly had the driver not reinstall as well, and again, it seemingly randomly popped back up on my laptop upon starting up one day. It'll be obvious when it's about to stop working too - the cursor gets kind of laggy and slow. 


EDIT: It's redownloaded now but still doesn't work, giving me the code 45 error. Any help?

A bit of backstory first. I got the computer in question, an HP Chromebook 14, thinking that it was a touchscreen, but it didn't work when I installed arch, so I poked around a bit and found some bug. After trying a few things, I gave up, and months later, when I tried fixing it again, none of the logs I could find (Xorg.0.log, dmesg, /proc/bus/input/devices) showed it existing at all. So recently, when trying to fix an audio problem, I stumbled upon an error for the same "Elan Touchscreen" in Xorg.0.log, although after trying to fix it, it disappeared again from all logs. Thankfully I have a copy of Xorg.0.log and /proc/bus/input/devices archived from when it was acting up.

The problem (when it detects the touchscreen at all) seems to be with the line "kernel bug: device has min == max on ABS_X" in Xorg.0.log, but I have no idea how to fix it. As I said, I'm running Arch on an HP Chromebook 14, getting to Arch through SeaBIOS then Grub, and i3 with Xorg. Any ideas?

This works, to my understanding, as of Linux Kernel 5.11, input devices have an inhibited property. This can easily be toggled with an echo command, but first, you need to find where the device exists.

The key line here is S:, this tells me where the device lives and where I have to toggle the inhibit property. As root, to inhibit the TrackPoint and make the computer usable run this:

The primary method of configuration for the touchpad is through an Xorg server configuration file. After installing xf86-input-synaptics, a default configuration file is located at /usr/share/X11/xorg.conf.d/70-synaptics.conf. Users can copy this file to /etc/X11/xorg.conf.d/ and edit it to configure the various driver options available. Refer to the synaptics(4) manual page for a complete list of available options. Machine-specific options can be discovered using #Synclient.

Next to the traditional method of configuration, the Synaptics driver also supports on the fly configuration. This means that users can set certain options through a software application, these options are applied immediately without needing to restart Xorg. This is useful to test configuration options before you include them in the configuration file or a script. Note that on the fly configuration is not persistent and lasts only until the Xorg server exists.

evtest needs exclusive access to the device which means it cannot be run together with an X server instance. You can either kill the X server or run evtest from a different virtual terminal (e.g., by pressing Ctrl+Alt+F2).

The tool xorg-xev can display taps, clicks, pressure, placement and other measured parameters in real-time, allowing still further refinement of the default Synaptics settings. xev can be run in X and needs no specifics. using the -event parameter, it is possible to restrict the types of events that are reported.

Circular scrolling is a feature that Synaptics offers which closely resembles the behaviour of iPods. Instead of (or additional to) scrolling horizontally or vertically, you can scroll circularly. Some users find this faster and more precise. To enable circular scrolling, add the following options to the touchpad device section of /etc/X11/xorg.conf.d/70-synaptics.conf:

Specifying something different from zero may be useful if you want to use circular scrolling in conjunction with horizontal and/or vertical scrolling. If you do so, the type of scrolling is determined by the edge you start from.

GDM stores the Xauthority files in /var/run/gdm in a randomly-named directory. You should find your actual path to the Xauthority file which can be done using ps ax. For some reason, multiple authority files may appear for a user, so a rule like this will be necessary:

Ever more laptops have a special kind of touchpad which has a single mouse button as part of the tracking plate, instead of external buttons. For example, the 2015 Dell XPS 13, HP series 4500 ProBooks, ThinkPad X220 and X1 ThinkPad series have this kind of a touchpad. By default, the whole button area is detected as a left button, so right and middle-click functions and click + drag will not work. It is possible to define two and three finger clicks as right and middle button clicks, and/or to define parts of the click pad surface as right and middle buttons. Note that although the driver registers multiple touches, it does not track individual fingers (as of version 1.7.1) which results in confusing behavior when using physical buttons of a clickpad for drag-and-drop and other gestures: you have to click with two or three fingers but then only move one of them while holding the button down with another. You can look into the xf86-input-mtrackAUR driver for better multitouch support.

Some desktop environments (KDE and GNOME at least) define sane and useful default configurations for clickpads, providing a right button at the bottom right of the pad, recognising two and three-finger clicks anywhere on the pad as right and middle clicks, and providing configuration options to define two and three-finger taps as right and middle clicks. If your desktop does not do this, or if you want more control, you can modify the touchpad section in /etc/X11/xorg.conf.d/70-synaptics.conf (or better, of your custom synaptics configuration file prefixed with a higher number). For example:

The above SoftButtonAreas option is commonly found in documentation or synaptics packages, and it defines the right half of the bottom 18% of the touchpad as a right button. There is no middle button defined. If you want to define a middle button remember one key piece of information from the manual; edge set to 0 extends to infinity in that direction.

In the following example the right button will occupy the rightmost 40% of the button area and the middle button 20% of it in the center. The leftmost 40% remains as a left button (as does the rest of the clickpad):

If your buttons are not working, soft button areas are not changing, ensure you do not have a synaptics configuration file distributed by a package which is overriding your custom settings (i.e. some AUR packages distribute configurations prefixed with very high numbers).

In some cases, for example Toshiba Satellite P50, everything work out of the box except often your click are seen as mouse movement and the cursor will jump away just before registering the click. This can be easily solved running

If you are using a laptop computer and your touchpad does not work after switching the laptop's lid, you can just change your power management policy: when closing the lid, 'shutdown the screen' instead of 'suspend'(or 'hibernate'). This is useful for some laptops.

MATE will by default overwrite various options for your touchpad. This includes configurable features for which there is no graphical configuration within MATE's system control panel. This may cause it to appear that /etc/X11/xorg.conf.d/70-synaptics.conf is not applied. Follow #MATE to prevent this behavior.

There also seems to be a problem with laptops which have both a touchscreen & a touchpad, such as the Dell XPS 12 or Dell XPS 13. To fix this, you can blacklist the i2c_hid driver, this does have the side-effect of disabling the touchscreen though.

In some cases, Synaptics touchpads only work partially. Features like two-finger scrolling or two-finger middle-click do not work even if properly enabled. This is probably related to the touchpad is not working problem mentioned above. Fix is the same, prevent double module loading.

Another possibility is that you are experiencing IRQ losses related to the i8042 controller (this device handles the keyboard and the touchpad of many laptops), so you have two possibilities here: 152ee80cbc

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