Bug 194081 - dell_laptop: Setting old previous keyboard state failed
Summary: dell_laptop: Setting old previous keyboard state failed
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Other (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_other
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-02-06 11:16 UTC by Vitaly Sulimov
Modified: 2017-05-06 10:41 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.9.6-200.fc25.x86_64
Subsystem:
Regression: No
Bisected commit-id:

Attachments
dmesg boot log (73.17 KB, text/x-log)
2017-02-06 11:16 UTC, Vitaly Sulimov 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Vitaly Sulimov 2017-02-06 11:16:56 UTC 
Created attachment 254241 [details]
dmesg boot log

I have Fedora 25 running on my laptop (Dell Latitude E5570) and it's has a problem with keyboard backlight. First of all - I have an ability to configure backlight brightness level and timeout from EFI, but system ignore this settings and keyboard backlight simple always on at 100% brightness level. I see this log messages at boot time and periodically after. 

dell_laptop: Setting old previous keyboard state failed

Looks like this is a bug in dell_laptop kernel module which doesn't campatable with my hardware.
Comment 1 Arcadiy Ivanov 2017-04-23 04:57:37 UTC 
This is caused by the same issue as bug 191731
Comment 2 Arcadiy Ivanov 2017-04-23 04:58:25 UTC 
https://github.com/torvalds/linux/pull/407
Comment 3 Arcadiy Ivanov 2017-04-23 20:35:58 UTC 
This will be fixed in https://patchwork.kernel.org/patch/9695271/
Comment 4 Arcadiy Ivanov 2017-05-06 10:41:54 UTC 
This has been fixed in master: https://github.com/torvalds/linux/commit/9216e0dcb5533a999d544d0af8661118e0588e1d
Note You need to log in before you can comment on or make changes to this bug.