Presently I have kernel 3.13.0-48-generic installed (from the automatic
updates). With Bluetooth and WiFi off I am able to bring the discharge
rate down to 12 W/h. Although now I have battery lifetimes in line with
those I had with Ubuntu 12.04, there is still a long way to go to catch
Windows.
A Windows user reports a discharge rate of 7-8 W/h running Word, with
WiFi and Bluetooth off:
http://forum.notebookreview.com/lenovo/574678-thinkpad-t420s-owners-
thread-10-print.html
With kernel 3.17 and no programmes running the discharge rate is about
the double of that.
Reagrds.
--
You
Hello again,
I just witnessed a Lenovo ThinkPad T420 with Ubuntu 14.04 installed
entering Suspended mode by pressing Ctrl+Alt+F1. I am now certain this
issue is not related to the BIOS; it is probably affecting a
considerable range of hardware and in different ways.
Regards,
Luís
--
You
Hello again,
I have tried to update the BIOS using two different methods:
. Using a virtual floppy: the update executable is over 3 Mb, and thus
the creation of the floppy fails.
. Using FreeDOS: it fails to mount any drives and thus access the
executable. Beyond this, FreeDOS is reportedly
Does expired mean you wont be working any more on this issue? No one
ever answered my question on VT...
Thank you.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1350513
Title:
I managed to install and run the mainline kernel (3.17). With it the
battery discharge rate is dramatically down, about half of what it is
with kernel 3.13 (~ 15W), but still above what it was with Ubuntu 12.04.
Also, with kernel 3.17 it seems the automatic screen dimming is not
working.
Cheers.
Dear Christopher,
Here's the description at the Sony page for the BIOS R2060Y0 update:
If your VAIO hardware supports Intel Virtualization Technology, this
setting will be added to the BIOS. The VT setting is disabled by
default.
Are you sure this is related to the issue reported? Updating the
Public bug reported:
Ubuntu 14.04 on Sony Vaio VGN-FW31ZJ. Whenever I try to switch to a TTY,
say by pressing Ctrl+Alt+F1, the system shuts down. The text user name
prompt appears for a split second but quickly everything goes black. I
then have to press and hold the On/Off chassis button (as in
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