[ltp] T41 in suspend to RAM: gets warm and not much bat. life

[Konstantin Filtschew]

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hi,

my thinkpad is also affected, but the Patch doesn't work on kernl 2.6.16
anymore.=20
Is there a patch for kernel 2.6.16 anywhere?

Thx for help

Konstantin

On Fri, 2006-03-24 at 09:45 +0100, Peter Fr=FChberger wrote:
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> Felix E. Klee schrieb:
> > When I put my T41 into suspend to RAM and store it in a computer bag,
> > then I notice that it gets pretty warm.  Also battery life is not that
> > great.  Just a guess: from a full charge I get roughly 1/2h of work plu=
s
> > 6 hours of suspend to RAM.  Some data:
> >=20
> > ~# uname -a
> > Linux t41 2.6.14.4 #2 Thu Mar 16 12:03:52 CET 2006 i686 unknown unknown=
 GNU/Linux
> >=20
> > /sys/devices/platform/smapi/BAT0# cat cycle_count=20
> > 199
> > /sys/devices/platform/smapi/BAT0# cat cycle_count=20
> > 199
> > /sys/devices/platform/smapi/BAT0# cat design_capacity=20
> > 47520 mWh
> > /sys/devices/platform/smapi/BAT0# cat last_full_capacity=20
> > 41220 mWh
> > /sys/devices/platform/smapi/BAT0# cat model=20
> > IBM-08K8193
> > /sys/devices/platform/smapi/BAT0# cat manufacturer=20
> > SANYO
> >=20
> > Graphics chip: Radeon 9000
> >=20
> > X driver: The one from ATI (version 8.22.5), running in low power mode
> >=20
> > I already ran that power consumption check tool from Thinkwiki: It said
> > that my machine does not suffer from the bug that there's too much powe=
r
> > drain in suspend to RAM.
>=20
> Did you run it while on AC Power?
>=20
> >=20
> > Is it normal that the machine gets quite warm (guess somewhere around
> > 40=B0 C, I assume) in suspend to RAM when stored in a bag?  How much
> > battery life should one get out of a T41 with a 6 cell battery when
> > running on suspend to RAM?
> >=20
>=20
> 6 hours of suspend to ram only? I think your machine is heavily infected
> ;-) I would suggest you try the patched radeonfb driver.
> - From within the patch, I read:
>=20
> +       RADEON_SLEEP_THINKPAD_DMI_MATCH_MODEL("T41")
>=20
> Info & patch:
> http://www.thinkwiki.org/wiki/Problem_with_high_power_drain_in_ACPI_sleep
> (info)
> http://bugme.osdl.org/show_bug.cgi?id=3D3022 (patch)
>=20
>=20
>=20
> Peter
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