walterw Posted March 18, 2019 Report Share Posted March 18, 2019 Hi all, I am having difficulty getting the touchpad working on my laptop - if I boot up to Ubuntu, it works fine. I played around with removing modules to semi isolate which modules I need and have deduced that I need at least: i2c_hid hid_multitouch When I remove those on Ubuntu, the touchpad stops working. However, merely having those built and available on my funtoo installation is insufficient. I also tried copying the xorg.conf.d/*.conf files for anything resembling input devices and that also did not work (after restarting X11). I will play around more with other kernel modules. I am trying to dig through lspci to see if I'm missing something but it isn't entirely clear to me, perhaps this might be what I need support: Communication Controller: Intel Corporation Point-LP CSME HECI #1 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) Thanks, Walter Link to comment Share on other sites More sharing options...
digifuzzy Posted March 18, 2019 Report Share Posted March 18, 2019 First thing that jumped to mind was the phrase "Xorg synaptics". I recall, when I had a laptop ages ago, that not having synaptic driver in xorg can cause havoc. A quick google brought this up - https://wiki.gentoo.org/wiki/Synaptics There is the later/newer libinput - https://wiki.gentoo.org/wiki/Libinput I'm not sure if these will solve your problems, but identify the need for the driver(correctly we hope) in /etc/portage/make.conf may pull in what you are missing. YMMV - https://forums.gentoo.org/viewtopic-t-1075806-start-0.html Link to comment Share on other sites More sharing options...
walterw Posted March 18, 2019 Author Report Share Posted March 18, 2019 Hi digifuzzy, Good call - I think you are most certainly right, I checked and I do not have x11-drivers/xf86-input-synaptics installed, nor the use flags with synaptics (which probably pulls that in). I'm building now and will report back :). Thanks, Walter Link to comment Share on other sites More sharing options...
gingerbread Posted May 25, 2019 Report Share Posted May 25, 2019 I've got a 7490 too, and I do not have synpatics installed as everything works fine with libinput only. To get the stickpoint and touchpad working, enabling HID_ALPS in my kernel config did the trick. Link to comment Share on other sites More sharing options...
walterw Posted May 25, 2019 Author Report Share Posted May 25, 2019 Hi gingerbread, Thanks for your reply, I do not have that set and will try that now. Walter Link to comment Share on other sites More sharing options...
walterw Posted May 26, 2019 Author Report Share Posted May 26, 2019 Hi gingerbread, I set that, rebuilt my kernel, modules, and installed it, but I still have no touchpad. I did have to manually modprobe hid-alps as it wasn't loaded by default; however, manually loading it had no impact. I am wondering if perhaps it would work if there were a corresponding x11 config file somewhere telling it to use it? But I am also not sure that matters because my /proc/bus/input/devices doesn't show any touchpad devices. I believe it works in Ubuntu, so I will have to keep comparing what the kernel supports versus what I have built in my kernel ... Thanks, Walter Link to comment Share on other sites More sharing options...
cardinal Posted May 27, 2019 Report Share Posted May 27, 2019 Welcome walterw, Gentoo has specific information for kernel configuration and touchpad setup here: https://wiki.gentoo.org/wiki/Dell_Latitude_5580 Reference: https://forums.gentoo.org/viewtopic-t-1075806-start-0.html https://wiki.archlinux.org/index.php/Dell_Latitude_7490 https://wiki.archlinux.org/index.php/Dell_Latitude_7480 Link to comment Share on other sites More sharing options...
walterw Posted May 28, 2019 Author Report Share Posted May 28, 2019 Thanks - I checked the gentoo wiki and will post back results after I rebuild the kernel. Walter Link to comment Share on other sites More sharing options...
Recommended Posts