From: Nahuel Pastorale <1502613@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Bug 1502613] Re: [Feature Request] Battery Status / Virtual Battery
Date: Wed, 05 Aug 2020 06:17:22 -0000 [thread overview]
Message-ID: <159660824205.10292.17586559699424490822.malone@chaenomeles.canonical.com> (raw)
In-Reply-To: 20151004131253.1871.94138.malonedeb@wampee.canonical.com
I just wanted to add that this would (probably) help solve the error 43 on mobile Nvidia GPU passthrough scenarios. While facing this myself I was able to get it working by simulating a battery and attaching it via an ACPI table.
Your work is greatly appreciated Sergey.
Thank you very much!
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https://bugs.launchpad.net/bugs/1502613
Title:
[Feature Request] Battery Status / Virtual Battery
Status in QEMU:
In Progress
Bug description:
When using virtualization on notebooks heavily then virtual machines
do not realize that they're running on a notebook device causing high
power consumption because they're not switching into a optimized
"laptop mode". This leads to the circumstance that they are trying to
do things like defragmentation / virtus scan / etc. while the host is
still running on batteries.
So it would be great if QEMU / KVM would have support for emulating
"Virtual Batteries" to guests causing them to enable power-saving
options like disabling specific services / devices / file operations
automatically by OS.
Optionally a great feature would be to set virtual battery's status
manually. For example: Current charge rate / charging / discharging /
...
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next prev parent reply other threads:[~2020-08-05 6:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-04 13:12 [Qemu-devel] [Bug 1502613] [NEW] [Feature Request] Battery Status / Virtual Battery Wolfgang Andreas
2016-06-07 20:53 ` [Qemu-devel] [Bug 1502613] " Naftaly Avadiaev
2020-02-10 23:22 ` Sergey Nizovtsev
2020-05-17 20:10 ` mizz
2020-05-18 8:06 ` Philippe Mathieu-Daudé
2020-05-18 9:45 ` Sergey Nizovtsev
2020-08-05 6:17 ` Nahuel Pastorale [this message]
2021-05-09 15:52 ` Philippe Mathieu-Daudé
2021-05-09 16:06 ` Philippe Mathieu-Daudé
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