On Wed, 03 May 2017, Marco Marzetti wrote: > For some reason /proc/acpi/button/lid/LID/state is always open even if > the lid is closed. > I am quite annoyed by the issue, but i ran out of options pretty fast > > Hardware is Lenovo X1 Carbon 2nd edition. > Below you can find: > - dmesg > - dmidecode > - /proc/acpi/wakeup Hmm, next time *please* remove serial numbers and UUIDs :-( > Please note that everything works as expected (buttons, microphone, > speakers, brightness, etc.. ). > if i run acpi_listen it spots every button, but no event is reported > for lid open/close. > > Please note that the same issue happens with 4.9.0-2 > Do you have any ideas why? Not at first glance, no. This stuff is handled by the standard ACPI layer, it is probably best that you open a bug report in the kernel bugzilla, assign it to the ACPI subcomponent, and then send an email to linux-acpi@xxxxxxxxxxxxxxx about it (with a link to the bugzilla report). It could be the lid ACPI driver, or the EC driver, or ACPICA itself. I am sure ACPI upstream will ask you to test the latest *mainline* (not the Debian) 4.9 kernel. That would be the 4.9 kernel you build from the git repository: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/ (use branch linux-4.9.y). You should be able to reuse the Debian kernel config with few changes (it will be in /boot/config-*). "make oldconfig" in the kernel tree is your friend (after you copied the Debian kernel config to ".config" in the checked out kernel source tree). You can use 'make-kpkg' from the Debian kernel-package package to build and package your test kernel, if you want. But it is slow for this kind of build :-( linux-acpi is likely to ask you to try git bissecting to locate the commit that introduced the problem. If you are not familiar with it, is explained here: https://wiki.gentoo.org/wiki/Kernel_git-bisect https://www.kernel.org/pub/software/scm/git/docs/git-bisect-lk2009.html http://www.reactivated.net/weblog/archives/2006/01/using-git-bisect-to-find-buggy-kernel-patches/ This clearly requires that you be somewhat confortable building your own kernels :-( -- Henrique Holschuh ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
