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2007-10-25
, 03:02
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Posts: 72 |
Thanked: 2 times |
Joined on Jul 2007
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#52
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I have discovered a problem with a particular wi-fi router only: When connected to this one my N800 sucks battery like there's no tomorrow. It _only_ happens with this router (which is one I own), it's never happened with any other access point anywhere. It took a while before I realised what's happening. Presumably the router somehow prevents my N800 from going into wi-fi sleep mode or something.
I don't have the exact details of this router (it's not located here), but it's a SiS chipset based one. I'll look for firmware upgrades for it and do some more testing if so.
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2007-10-25
, 10:26
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Posts: 3,841 |
Thanked: 1,079 times |
Joined on Nov 2006
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#53
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2007-10-25
, 14:52
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Posts: 72 |
Thanked: 2 times |
Joined on Jul 2007
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#54
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2007-12-21
, 14:52
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Posts: 87 |
Thanked: 9 times |
Joined on Nov 2007
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#55
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2007-12-21
, 18:52
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Posts: 22 |
Thanked: 0 times |
Joined on Jul 2007
@ Hawaii
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#56
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2007-12-21
, 19:35
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Posts: 3,220 |
Thanked: 326 times |
Joined on Oct 2005
@ "Almost there!" (Monte Christo, Count of)
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#57
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2007-12-21
, 20:16
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Posts: 87 |
Thanked: 9 times |
Joined on Nov 2007
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#58
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I strongly agree with many posters when they say that high CPU usage does burn up the battery. Running the web browser almost always burns the CPU at 100% these days, especially when reading the active java sites (gmail). This web site uses a lot of CPU, incidentally.
Somtimes I spot "runaway" processes that may be churning away for no good reason. I've been keeping track of applications that are using a lot of CPU and in the terminal I run "top" to see them. Sometimes, there is a program running taking tons of CPU with a vague title like "sh" but no details. I shut down the system all the way, and restarted, that sh program was still there. I reasoned that if the N800 is trying to do "session management" then some bad program that was running before will get launched again. But I don't know if that's what it is doing. I know on Linux lots of systems do have session management. After gaining root, I find that "kill -9 nnn" for the process numbered nnn does kill the mypsterious high CPU using program "sh".