[Bug 1978] IBM ThinkPad T42 uses excessive amount of battery in ACPI suspend mode

Mon Mar 21 16:38:16 UTC 2005

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http://bugzilla.ubuntu.com/show_bug.cgi?id=1978
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------- Additional Comments From marius at pov.lt  2005-03-21 16:38 UTC -------
My T42 (model 2373-FWG) also suffers from this problem (3600 mW during ACPI sleep).

I have tried radeontool-1.5-mjg, but without much luck: the laptop tends to lock
up hard with a black screen after a resume.  I believe I had only two successful
resumes with radeontool, but one of them ended up with a crazy keyboard (and I
had to reboot), while another was on AC power, so I couldn't check battery usage.

Question: should I enable any of SAVE_VBE_STATE, POST_VIDEO, USE_DPMS,
DOUBLE_CONSOLE_SWITCH in /etc/default/acpt-support if I want to try radeontool?
 I had POST_VIDEO enabled and all others disabled.  A regular suspend without
radeontool works fine with all these options disabled.

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