The 18 month support period for Edgy Eft 6.10 has reached it's end of
life. As a result, we are closing the linux-source-2.6.17 Edgy Eft
kernel task.
** Changed in: linux-source-2.6.17 (Ubuntu)
Status: New = Won't Fix
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Excessive battery usage in ACPI sleep
I am marking this bug as Fix Released against the Feisty kernel based
off comment 3.
** Also affects: linux-source-2.6.20 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-source-2.6.20 (Ubuntu)
Status: New = Fix Released
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Excessive battery usage in ACPI sleep
The bug appears to be fixed in Feisty (kernel 2.6.20-15-generic). A
16-hour ACPI sleep consumes only 20% of battery. dmesg mentions
radeonfb: forcefully enabling D2 sleep mode on boot and then radeonfb
(:01:00.0): switching to D2 state... on suspend.
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Excessive battery usage in ACPI
Before the upgrade my /var/log/kern.log used to contain these messages:
radeonfb (:01:00.0): suspending to state: 2...
radeonfb (:01:00.0): switching to D2 state...
now I only get
radeonfb (:01:00.0): suspending to state: 2...
I suppose I should try to modprobe radeonfb
I edited /etc/modules and changed the radeonfb line to read
radeonfb force_sleep=1
I rebooted, suspended, resumed and checked dmesg -- nothing about going
to D2 sleep.
I then rebooted and added video=radeonfb:force_sleep=1 to the kernel
command line, suspended, resumed and checked dmesg.
