Bug 82601
| Summary: | Touchpad is not working on Dell XPS 13 9333 | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Gabriele Mazzotta (gabriele.mzt) |
| Component: | Input Devices | Assignee: | Mika Westerberg (mika.westerberg) |
| Status: | RESOLVED CODE_FIX | ||
| Severity: | normal | CC: | alan, gabriele.mzt, mika.westerberg |
| Priority: | P1 | ||
| Hardware: | x86-64 | ||
| OS: | Linux | ||
| Kernel Version: | 3.17-rc1 | Subsystem: | |
| Regression: | Yes | Bisected commit-id: | |
| Attachments: |
dmesg
Patch to test |
||
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. |
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.