https://bugzilla.kernel.org/show_bug.cgi?id=70401
Bug ID: 70401
Summary: No battery or AC information on Venue 8 Pro (Bay Trail
tablet device)
Product: ACPI
Version: 2.5
Kernel Version: 3.14rc2
Hardware: All
OS: Linux
Tree: Fedora
Status: NEW
Severity: normal
Priority: P1
Component: Power-Battery
Assignee: [email protected]
Reporter: [email protected]
Regression: No
On the Dell Venue 8 Pro, an Intel Bay Trail-based tablet device, with all
kernels tested so far (3.11 through 3.14rc2), there is no kind of power status
information - no battery stats, no indication of whether the device is on AC or
battery. upower doesn't have any kind of info at all, it doesn't know there is
a battery - it's pretty clear the kernel layer isn't providing any information.
I'm using Fedora Rawhide kernels with appropriate patches to actually boot on
these devices, but I believe everyone using one of these Bay Trail tablets with
whatever distro / kernel - the V8P, Lenovo Miix2, Asus T100 etc - has seen the
same.
I'll attach boot logs and acpidump from the V8P in a few hours (building a new
kernel ATM).
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