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While running an Ubuntu kernel (not a mainline or third-party kernel)
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apport-collect 1797304
and then change the status of the bug to 'Confirmed'.
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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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:
Incomplete
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.
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