https://bugzilla.kernel.org/show_bug.cgi?id=150701
Bug ID: 150701
Summary: Dell Venue 11 Pro 7140 tablet - folio cover closing is
detected, but opening is not
Product: ACPI
Version: 2.5
Kernel Version: 4.7.0
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 226871
--> https://bugzilla.kernel.org/attachment.cgi?id=226871&action=edit
dmesg
Dell Venue 11 Pro 7140 in pair with original Dell's folio cover have nice
feature - tablet can detect when folio cover is closed and when folio cover is
opened, so tablet can suspend automatically when user close cover, and wakeup
automatically when user open cover.
For some reason this feature is working in Linux only with patches from bug
102281 (comment 50) but doesn't working with kernel without patches (4.4.0,
4.4.15, 4.7.0 was tested).
With patched kernel cover closing is detected as "lid close" event, and cover
opening is detected as "wakeup button" event.
dmesg is attached. Please let me know what additional information I can provide
to help fix this.
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