Slashdot Mirror
Faulty Microsoft Driver Saps Intel Core Duo power
Critical_ writes "Tom's Hardware recently discovered a bug in Microsoft's ACPI driver implementation under Windows XP SP2 that causes a loss of more than one hour of battery time when connecting any USB 2.0 device to an Intel Core Duo based system. Apparently Microsoft, Intel and ODMs have known of this problem under a confidentiality agreement since July 12, 2005 via (a still private) Knowledge Base article KB899179. The bug lies in the asynchronous scheduler component inadvertently being left running causing Windows' internal task scheduler (ITS) to treat it as a running process involving the attached device. This in turn prevents the ITS from powering down the processor into one of the ACPI sleep states causing the system to use more battery power. At this time there seems to be no fix. Strangely, single-core systems and AMD systems are not affected. This leads one to wonder if it is truely a software problem or if there a much larger hardware problem that may affect Core Duo equipped Apple systems."
First post from a laptop running XP SP2 with a USB 2.0 device connected with the asynchronous scheduler component running preventing my CPU from entering one of the ACPI sleep states and thus draining my battery life.
"Hmm... Microsoft, a bug, Intel, Apple and dual core in the same article. I wonder if this couldn't generate some tasty clicks? Quick, put it on the frontpage!"
I'm sorry, there must be a spic on my screen. Isn't Arnold Schwartzanigger a fan of Canadian honkey?
I enjoy watching it too sometimes, unless it's a nice windy day out, then I'd rather be out flying a kike.
Because nobody cares about another bug in Windows. But what if it's not in Windows, and it can affect the Mac?? Panic!
(if it was, they would have fixed it by now).
Ummm, because Microsoft is well known for getting software fixes out quickly?
This guy's the limit!
on my bigass American TV.
Sarcasm, right?
"I don't know, therefore Aliens" Wafflebox1
Why do so many chinks have to act so niggardly all the time? :-p
(coming from someone of korean descent)
This guy's the limit!
You must be crackers; any one can see that this is a slippery slope. And being sued for your racist talk doesn't spook you -- well, you must have a lot of guineas saved up.
You would do well to keep your language spic and span.
Bemopolis, a lousy mick
"I guess the moral of the story is, don't paint your airship with rocket fuel." -- Addison Bain
Don't knock camel poo.
At least in the desert, they use it to light camp fires.
[Fuck Beta]
o0t!