mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Fabio Comolli <fabio.comolli@gmail.com>
To: ACPI mailing list <linux-acpi@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: Len Brown <lenb@kernel.org>, Corentin Chary <corentin.chary@gmail.com>
Subject: Possible bug in eeepc-laptop.c - EeePC 900
Date: Tue, 9 Mar 2010 23:58:47 +0100	[thread overview]
Message-ID: <b637ec0b1003091458j67efc62cg2c975e9e286f4b0b@mail.gmail.com> (raw)

Hi.
I have an EeePC 900 running 2.6.34-rc1.

If I boot it on AC the cpu runs at full speed, 900MHz; if I boot it on
battery it runs only at 630Mhz. Plugging / unplugging the AC does not
change the cpu frequency. Only a reboot can change the situation.

I already tried to echo 0 or 1 to the
/sys/devices/platform/eeepc/cpufv file; no effects, even if the file
changes its value.

This is not a regression from 2.6.33: this behavior is also present in
that version.

Does this ring any bells? This is really annoying, especially when
trying to watch a movie on battery. Also 3D apps show a 30%
performance drop, as expected.

Regards,
Fabio

             reply	other threads:[~2010-03-09 22:58 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-09 22:58 Fabio Comolli [this message]
2010-03-10 13:07 ` Corentin Chary
2010-03-10 13:46   ` Fabio Comolli
2010-03-10 22:09     ` Fabio Comolli
2010-03-10 22:19       ` Fabio Comolli
2010-03-11 21:28 Fabio Comolli
2010-03-12  8:49 ` Corentin Chary
2010-03-12 20:07   ` Fabio Comolli
2010-03-13  9:16     ` Corentin Chary
2010-03-13 12:50       ` Fabio Comolli
2010-03-16  6:54         ` Corentin Chary
2010-03-16 20:31           ` Fabio Comolli
2010-03-17  8:22             ` Corentin Chary
2010-03-17 22:55               ` Fabio Comolli
2010-03-17 14:49         ` Alan Jenkins
2010-03-17 15:40           ` Fabio Comolli

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=b637ec0b1003091458j67efc62cg2c975e9e286f4b0b@mail.gmail.com \
    --to=fabio.comolli@gmail.com \
    --cc=corentin.chary@gmail.com \
    --cc=lenb@kernel.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®