Pierre-Luc Drouin wrote:
Hajimu UMEMOTO wrote:
On Mon, 14 Nov 2005 12:40:36 -0500
Pierre-Luc Drouin <[EMAIL PROTECTED]> said:
pldrouin> Yep, smart battery is definately the problem. The
performance of my pldrouin> laptop is back to normal when I remove the
xfce4-battery-plugin. pldrouin> acpiconf -i loop reproduces the
problem for me too. So it looks like pldrouin> there is something
wrong in smart battery.
The cmbat has similar issue on some laptops. So, acpi_cmbat.c uses
cache for retrieval to reduce its influence, and its expiration
time is set by hw.acpi.battery.info_expire.
However, acpi_smbat.c doesn't use cache. So, I made a patch. Since I
don't have a laptop which has smbat, I cannot test it by myself.
Please test it and let me know the result.
The patch seams to do its job correctly, but it is still very annoying
to have the whole computer to freeze for 1 second when the cache
expires. What does make the whole system to freeze? Before the code was
changed in 6.0-stable, FreeBSD was able to read the battery status
without freezing my laptop... I have been running 3 OSes (FreeBSD,
Ubuntu and Win XP) on my laptop for a while and never experienced that
kind of problem with either Linux or Win XP. I guess there is something
wrong in the new code added after 6.0-release.
If you have both smbat and cmbat, just disable smbat if you don't like
it. Add this to /boot/loader.conf:
debug.acpi.disabled="smbat"
The pause is related to a buggy or slow EC. Caching the values happens
to hide it. Do you get pauses with smbat disabled (see above for how to
do this)? Can you still get battery status from cmbat?
--
Nate
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