On 3/18/19 7:46 PM, Romain Perier wrote: > On Mon, Mar 18, 2019 at 12:43:10PM +0100, Alois Schlögl wrote: >> On 3/18/19 12:20 PM, Romain Perier wrote: >>> Hello, >>> >>> On Mon, Mar 18, 2019 at 11:27:41AM +0100, Alois Schlögl wrote: >>>> Source: linux >>>> Severity: normal >>>> >>>> Dear Maintainer, >>>> >>>> On a Lenovo L480 laptop, I've upgraded Debian from 9 (stretch) to 10 >>>> (testing). >>>> After the upgrade, the touchpad and the trackpoint was not usable >>>> anymore. >>>> >>>> >>>> This already has some bug report here, >>>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803600 >>>> >>>> As a workaround, one can run the command, >>>> sudo sh -c 'echo -n "elantech"> >>>> /sys/bus/serio/devices/serio1/protocol' >>>> in order to use the touchpad. However, on a GUI Interface and without >>>> an external mouse, it's impossible to apply this workaround >>>> (switching to the terminal <CTRL>-<ALT>F1, login, and run the command >>>> above might work) >>>> >>>> I expect to be able to use the touchpad just out of the box, not needing >>>> to run the above workaround >>>> >>> Could you : >>> >>> - Test with the last kernel uploaded to unstable (4.19.0-4:4.19.28) and >>> confirm or >>> not is the problem still exists ? >> Dear Romain >> >> >> I upgraded the kernel and rebooted: >> >> schloegl@debian10:~$ uname -a >> Linux debian10 4.19.0-4-amd64 #1 SMP Debian 4.19.28-2 (2019-03-15) >> x86_64 GNU/Linux >> >> >> With this kernel the trackpoint is working, the trackpad is still not >> usable. >> >> (This improves the situation because now at least one pointer device is >> available). >> >> > Good, we did some progress :) > >>> - According to the bug on launchpad and to the fix pushed upstream, the >>> fix seems to be an hardware quirks, could you give me the output of the >>> following command : >>> $ /sys/bus/serio/devices/serio1/firmware_id >> root@debian10:~# cat /sys/bus/serio/devices/serio1/firmware_id >> PNP: LEN2036 PNP0f13 >> > Could you test the patch attached to this reply ? > (if you don't know how to do this, I can provide support) > > Regards, > Romain
I tried to followed these instructions: https://kernel-team.pages.debian.net/kernel-handbook/ch-comm 4.5. Building a custom kernel from Debian kernel source Specifically using the patched the sources, *scripts/config --disable MODULE_SIG* **scripts/config --disable DEBUG_INFO** ||*|make clean|* ||*|make deb-pkg |* and ended up with a kernel that does not boot (missing HD audio firmware), Which procedure do you recommend to build and install a modified kernel ? Regards, Alois
