Hello everybody, Thanks to Harris Anggara (harrisanggara) and Daniel Drake (dsdrake) here, https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1490130 , I could solve my problem by adding this patch to the kernel : https://marc.info/?l=linux-input&m=144312209020616&w=2 Now i'm using kernel 4.2 for Ubuntu 14.04 with the patch. I had to change the DMI_PRODUCT_NAME with K501LX (because that is my laptop model). To identify your laptop model you can run sudo dmidecode | grep Product\ Name I tried directly with kernel 4.2 because before that, kernel 3.19 and so, they need a driver for my touchpad. I followed the instruction here to obtain the source of kernel 4.2 for Ubuntu 14.04, https://wiki.ubuntu.com/Kernel/Dev/KernelGitGuide git clone git://kernel.ubuntu.com/ubuntu/ubuntu-trusty.git then from inside the folder you've just downloaded (cd ubuntu-trusty) git tag -l Ubuntu-* to know what is available for ubuntu 14.04 and then git checkout -f -b temp Ubuntu-lts-4.2.0-6.6_14.04.1.1 After, to build the kernel, I followed this explanation, https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel fakeroot debian/rules clean fakeroot debian/rules binary-headers binary-generic then cd .. ls *.deb linux-cloud-tools-4.2.0-6-generic_4.2.0-6.6~14.04.1.1_amd64.deb linux-headers-4.2.0-6_4.2.0-6.6~14.04.1.1_all.deb linux-headers-4.2.0-6-generic_4.2.0-6.6~14.04.1.1_amd64.deb linux-image-4.2.0-6-generic_4.2.0-6.6~14.04.1.1_amd64.deb linux-image-extra-4.2.0-6-generic_4.2.0-6.6~14.04.1.1_amd64.deb linux-tools-4.2.0-6-generic_4.2.0-6.6~14.04.1.1_amd64.deb I deleted this two files because I don't need them linux-cloud-tools-4.2.0-6-generic_4.2.0-6.6~14.04.1.1_amd64.deb linux-tools-4.2.0-6-generic_4.2.0-6.6~14.04.1.1_amd64.deb and finally, sudo dpkg -i linux*4.2.0-6.6~14.04.1.1*.deb sudo reboot Now it works nicely. The touchpad works fine, without the need to install any driver and I can suspend the activity of my computer and resume without loosing the touchpad. I hope the patch will be integrated soon and I won't loose my touchpad again with updates in the future. Thank you everybody, Take care, always smiling, Thatoo Le 22/10/2015 12:12, Nathanaël/Thatoo a écrit : > Hello, > > Harakhay, the guy who find a solution in here, > https://bbs.archlinux.org/viewtopic.php?pid=1572218#p1572218 , told me a > little bit more how he solved his problem : > > Everybody suggested him to add SUSPEND_MODULES="psmouse" in > /etc/pm/config.d/modules, but it didn't help for him. So he found all > modules dependent upon psmouse, and some dependent upon those modules as > well. He had about 6 of them. Then he did this trick with all these > modules (unload on suspend, load on resume), and he found out that it > works. Then only thing he needed to do was to find out what module from > those 6 is needed to be reloaded.... > > Now, to try his solution, because i8042 doesn't works in my case, I need > to how to find all modules dependent upon psmouse, and some dependent > upon those modules as well... > > Does anyone can help me with that? > > Thank you > > Le 19/10/2015 13:37, thatoo@xxxxxxxxxxx a écrit : >> no, lsmod | grep i8042 , doesn't show anything. >> >> I guess everything is because of this sentence you wrote to me that I >> don't understand, "make sure it is a module and not compiled into >> kernel". What does it mean?? >> >> Le 17/10/2015 21:31, Dmitry Torokhov a écrit : >>> On Sat, Oct 17, 2015 at 09:11:44PM +0330, Nathanaël/Thatoo wrote: >>>> I tried to follow the solution, >>>> >>>> - pm-utils was already installed >>>> >>>> - I created the file /etc/pm/config.d/modules >>>> sudo gedit /etc/pm/config.d/modules >>>> and I wrote >>>> SUSPEND_MODULES="i8042" >>>> >>>> - Then I tried to suspend using "sudo pm-suspend" or the shortkey etc.. >>>> but nothing change. >>>> >>>> Maybe I have to write more inside /etc/pm/config.d/modules to "unload" >>>> on suspend and then "reload" on resume, no? >>>> Maybe just the line SUSPEND_MODULES="i8042" is not enough but what >>>> should I write? >>>> What means (make sure it is a module and not compiled into kernel)? >>> Do you see anything if you do "lsmod | grep i8042"? >>> >>> Thanks. >>> >>>
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