On 05/14/2015 02:17 PM, Mario Limonciello wrote:
On 05/14/2015 02:13 PM, Matthew Garrett wrote:
On Thu, May 14, 2015 at 02:02:02PM -0500, Mario Limonciello wrote:
* Battery information was not displayed in the OS. The BIOS team
found that the Linux wasn't asking for battery information in the OS
in the same way that Windows does. The delta path creates a SMI
event to get battery information.
Huh. Is there any chance we can find out what the difference is so we
can make them equivalent?
That was my reaction too. I'm asking for some technical details on this.
Hi Matthew,
I've gotten some more information on this.
Windows: Asks for battery information update multiple times.
Linux: Only asks once for battery information update.
The net result is that on Linux ACPI battery is missing. In the _REV
test BIOS workaround, a SMI event was added to ask for battery
information update.
Thanks,
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