Here are the results:
Tested Mainline 3.12 (trusty): 3.12.031200-generic for i386
No change in the battery status issue - I did recognize a battery but
status (plugged/unplug and % charge) didn't change when I issued the
acpi command.
Further info: When I installed the kenel via terminal, part of the
output gave errors (note the "version string" error has been around a
long time, so it is not specific to that kernel):
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal
3.12.0-031200-generic /boot/vmlinuz-3.12.0-031200-generic
dpkg-query: warning: parsing file '/var/lib/dpkg/status' near line 48712
package 'mobile-broadband-provider-info':
error in Version string 'git.20100622t053426.75f8fc9-0ubuntu1~mtrudel1~lucid':
version number does not start with digit
run-parts: executing /etc/kernel/postinst.d/dkms 3.12.0-031200-generic
/boot/vmlinuz-3.12.0-031200-generic
ERROR (dkms apport): kernel package linux-headers-3.12.0-031200-generic is not
supported
Error! Bad return status for module build on kernel: 3.12.0-031200-generic
(i686)
Consult /var/lib/dkms/nvidia-304/304.88/build/make.log for more information.
Also when the computer booted, I got the "Could not apply stored
configuation for monitors" error (ended up with some bigger icons but
everything else seemed to work fine).
As noted before, my Ubuntu splash screen blinks some quick error in red
(too quick to be able to read it) before the login screen appears. The
Ubuntu splash is also just a text of Ubuntu 12.04 with small dots below
it instead of the larger "Ubuntu" with the icon and large dots (has been
like this for a while with the newer 3.5.x kernels - the older, non-
mainline kernels I tested in #41 booted with the large text and icon).
Doubt it's related but may be some more info.
Let me know if there is anything else you want to test. My impression
is that this issue may be some quirk with my 4yr old laptop and likely
affects very few, if any other, people. If this becomes something that
is not worth your time to continue to work on, I do understand.
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-v3.12
** Tags removed: needs-upstream-testing
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1194563
Title:
No low battery notifications and no updated battery status (ACPI
Errors
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