Bug 208525 - Mouse and Keyboard no longer works in kernel 5.7.5
Summary: Mouse and Keyboard no longer works in kernel 5.7.5
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Input Devices (show other bugs)
Hardware: x86-64 Linux
: P1 normal
Assignee: drivers_input-devices
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-07-11 23:05 UTC by psytra
Modified: 2020-07-19 03:03 UTC (History)
0 users

See Also:
Kernel Version: 5.7.5
Subsystem:
Regression: Yes
Bisected commit-id:


Attachments
xorg log from kernel 5.6.19 (40.85 KB, text/plain)
2020-07-11 23:05 UTC, psytra
Details
xorg log from kernel 5.7.7 (42.49 KB, text/plain)
2020-07-11 23:06 UTC, psytra
Details
dmesg on 5.6.19 (70.03 KB, text/plain)
2020-07-11 23:21 UTC, psytra
Details
lsmod on 5.6.19 (4.98 KB, text/plain)
2020-07-11 23:21 UTC, psytra
Details
dmesg on 5.7.7 (69.65 KB, text/plain)
2020-07-11 23:27 UTC, psytra
Details
lsmod on 5.7.7 (4.93 KB, text/plain)
2020-07-11 23:28 UTC, psytra
Details

Description psytra 2020-07-11 23:05:10 UTC
Created attachment 290231 [details]
xorg log from kernel 5.6.19

Hello,

I am running fedora 32 on my acer e5-511-pogc laptop. After updating to the latest 5.7.* kernels the trackpad and keyboard no longer works. If I attach a usb mouse and keyboard to the laptop they are detected and work.

The last working kernel is 5.6.19.

I am going to include a Xorg log from the machine running both kernels. Looking at it and trying to troubleshoot it myself it seems the mouse and keyboard are seen as a different device id on the newer kernels.

I can get them both to work if I install the synaptic and evdev driver and override the order to load sooner than libinput.

These xorg logs are on a stock fedora install without those additional drivers.
Comment 1 psytra 2020-07-11 23:06:30 UTC
Created attachment 290233 [details]
xorg log from kernel 5.7.7
Comment 2 psytra 2020-07-11 23:07:41 UTC
Comment on attachment 290231 [details]
xorg log from kernel 5.6.19

Xorg.0.log with working libinput drivers
Comment 3 psytra 2020-07-11 23:21:03 UTC
Created attachment 290235 [details]
dmesg on 5.6.19
Comment 4 psytra 2020-07-11 23:21:32 UTC
Created attachment 290237 [details]
lsmod on 5.6.19
Comment 5 psytra 2020-07-11 23:27:23 UTC
Created attachment 290239 [details]
dmesg on 5.7.7
Comment 6 psytra 2020-07-11 23:28:01 UTC
Created attachment 290241 [details]
lsmod on 5.7.7
Comment 7 psytra 2020-07-11 23:45:38 UTC
I also tested 5.7.8 and 5.8rc4 from the vanilla kernel repo for fedora and both had the same problem.

I also tested the lts kernel which was 5.4.50 on arch linux and it also had the mouse and keyboard problem on this laptop.

Not sure if this info helps but I figured it might be something fedora specific but recreated the problem on arch linux as well.
Comment 8 psytra 2020-07-19 02:30:49 UTC
After going one by one, the mouse and keyboard work up to kernel 5.7.4. They stop after the upgrade to kernel 5.7.5.

I guess the next stop is to start compiling the code and excluding any patch from that changelog that looks suspicious... Just need to figure out how to do that.
Comment 9 psytra 2020-07-19 03:03:26 UTC
Looking at the changelog for kernel 5.7.5 I got suspicious about the intel_vbtn changes.

Decided to black list the module and now both my keyboard and mouse work again.

Looks like it was triggering my laptop to think it was a tablet so it was disabling the mouse and touchpad.

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