Public bug reported:
[Impact]
When the keyboard backlight sysfs is missing, userspace does not know
the current keyboard backlight brightness.
[Fix]
There's a loading order race condition, between the dell-smbios and its
backends, dell-smbios-{smm,wmi}.
Build them as one module can solve the issue.
The last patch is what we want, but pulls the entire series as a whole.
[Test]
The backlight sysfs always exists with the patch. Userspace now knows
the current keyboard backlight brightness.
[Regression Potential]
Low. No functional change, as it simply links the modules together.
Limits to Dell machines.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1797304
Title:
Keyboard backlight sysfs sometimes is missing on Dell laptops
Status in linux package in Ubuntu:
New
Bug description:
[Impact]
When the keyboard backlight sysfs is missing, userspace does not know
the current keyboard backlight brightness.
[Fix]
There's a loading order race condition, between the dell-smbios and its
backends, dell-smbios-{smm,wmi}.
Build them as one module can solve the issue.
The last patch is what we want, but pulls the entire series as a
whole.
[Test]
The backlight sysfs always exists with the patch. Userspace now knows
the current keyboard backlight brightness.
[Regression Potential]
Low. No functional change, as it simply links the modules together.
Limits to Dell machines.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1797304/+subscriptions
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