On Wed, Mar 20, 2019 at 08:24:33AM +0100, Alois Schlögl wrote: > 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 ? > > Hi, Section 4.2 from https://kernel-team.pages.debian.net/kernel-handbook/ch-common-tasks.html#s-common-official , until test-patches should work. For the test-patches script, use the flavour and a featureset as argument, when you invoke it, like this : # debian/bin/test-patches -f amd64 -s none /path/to/0001-Input-elantech-disable-elan-i2c-for-L480.patch This will apply the patch on the fly, configure the kernel for amd64 and build a version with a special changelog entry and a special suffix version dedicated to the test version you generate. In case of troubles, I can provide another way, from git with few commands. Hope this helps, Regards, Romain
Attachment:
signature.asc
Description: PGP signature