Re: low runtime with acer travelmate 290lci (centrino)
Am Montag, 28. Juni 2004 10:13 schrieb Leonardo Canducci:
> On Sun, Jun 27, 2004 at 12:04:42PM +0200, Sebastian Mangelkramer wrote:
> > hello dear list,
> > my acer travelmate 290lci (centrino) laptop drives me crazy because the
> > runtime when i`m on battery is just about 1h 30min. i`m using debian 3.1
> > sarge with kernel 2.6.7, cpudynd, hdparm with hdd-spindown, ....
> > even if the cpu runs @50% the runtime is about 1h 30 min.
> > i don`t know why.
> > the same laptop running under windoze xp makes more than 4 hours.
> > are there any tipps or solutions for my problems ?
> > p.s. all extra hardware ist off (wlan, pcmcia, ...)
> I own the same laptop, tm291lci (centrino 1.4 + 30Gb HD, 855 graphics,
> intel 2200 wireless lan) and it runs for about 4h.
> my config is:
> loaded modules (or statically compiled into kernel):
> cpufreq_userspace, speedstep_centrino.
> userspace governor: powernowd
> cpu speed is almost always 600MHz. It increases only when needed (that's
> powernowd simple policy).
> For what I've seen it seems that with linux batteries last longer than
> with winXP, at least using wireless lan.
> btw my laptop is shipped with intel2200 wlan adapeter (56MB/s capable)
> and currently there's no usable opensource driver available (ipw2100
> cannot be used for intel2200 and ipw2200 is still in alpha). that's not
> a big deal since ndiswrapper works fine (WEP is unsupported though).
> anyway it could be some problem with your battery. could you post
> cat /proc/acpi/battery/BAT1/info ?
nori:~# cat /proc/acpi/battery/BAT1/info
design capacity: 4000 mAh
last full capacity: 4000 mAh
battery technology: rechargeable
design voltage: 14800 mV
design capacity warning: 420 mAh
design capacity low: 156 mAh
capacity granularity 1: 264 mAh
capacity granularity 2: 3780 mAh
model number: PA3206U
serial number: 3658Q
battery type: Li-Ion
OEM info: COMPAL
> PS anyone got suspend to ram working with this laptop?
> Leonardo Canducci
> GPG Key ID: 429683DA
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