Created attachment 146941 [details] dmesg The touchpad is no longer working, worked fine with 3.16. The dmesg shows two errors: [ 2.435880] i2c_designware INT33C3:00: controller timed out [ 2.436147] i2c_hid i2c-DLL060A:00: hid_descr_cmd failed Full dmesg attached.
I just noticed that also the touchscreen is no longer working properly. It detects the first touch, after that it stops working. I should maybe open another bug report for this, but maybe it's related to the problem here reported.
It's related I think
It is most likely due to the latest ioapic changes. Basically the I2C host controller is getting edge triggered interrupt instead of level what it is supposed to get. I commented today on that thread already if someone has ideas how to fix it. The commit I suspect is this: 15a3c7cc9154321fc3ed1f7738bb7bbe690af91d x86, irq: Introduce two helper functions to support irqdomain map operation
Gabrielle, please check /proc/interrupts from your system. I have similar machine here and you can see, this works: 7: 0 0 0 0 IO-APIC-fasteoi INT3432:00, INT3433:00 And this is after the ioapic changes, and doesn't work: 7: 0 0 0 0 IO-APIC-edge INT3432:00, INT3433:00
I get the same: kernel 3.16: 7: 2071534 16001 4177 4867 IO-APIC-fasteoi INT33C3:00 39: 60289 497 106 114 IO-APIC-fasteoi DLL060A:00 kernel 3.17-rc1: 7: 1 0 0 0 IO-APIC-edge INT33C3:00
I reverted 81c02a21b293faecab725f691d709111831e1944 ("Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") for a quick test and as expected the touchpad started to work. However, the touchscreen is still not working properly, so I guess it's a different bug.
Created attachment 148421 [details] Patch to test Gabriele, Can you try the attached patch?
It's working, thanks.
Fixed with this commit: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?h=x86/urgent&id=f395dcae7a68497751869cf0031fd8ce5e115f0a Will be included in v3.17-rc3. I'm marking this as resolved for now.