Rockbox General > Rockbox General Discussion

Battery Life Issues (Sansa e280)

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mdouet:
I've noticed some serious degradation in battery life since I started running RockBox.  When using the standard firmware I get between 15-20 hrs of battery life, but lately with RockBox it's more like a few hours.  This is pretty unacceptable, is this normal or is there something wrong?

Llorean:
"More like a few hours" is not descriptive. Runtime tests suggest that Rockbox should get 10-15 assuming music only use. Have you done a battery benchmark?

A search of the boards would reveal that on the Sansa and other portalplayer targets, Rockbox is currently expected to have less battery life than the original firmware by a somewhat significant percentage due to factors relating to hardware init that we haven't yet discovered. Please follow the guidelines and perform searches before asking things.

In all honesty, I'm growing rather tired of your use of the word "unacceptable" and similar terms in relation to Rockbox. If you don't like it, don't accept it. We offer it free, for download, with no warranty nor even guarantee of usability. It states this clearly. Any desire or expectation you have of it is imagined on your part, the terms of the license are rather clear. If you don't like it, don't use it, but if you're going to post in our forums, be respectful, follow the rules in terms of searching, and realize that the best way to get a problem resolved is to pitch in and solve it: That's how every other line of the software got written.

You don't have to accept it, the original firmware can be restored in short order and you can go to Sansa and talk to them about fixing all your problems. Since you gave them money, and they have a desire to keep you as a customer, they might be more tolerant.

scorche:
As well, if this is referring to the estimated time remaining, that is incorrect.

Secondly, cut the attitude.  You are making a lot of people very angry at the level of disrespect shown by you.  If you think all these things are very wrong, "unacceptable", "unusable", or any other way disagrees with you, you do not have to take the extreme stance on everything.  An "I have xxxx issue, would it be possible that I am incorrect, or is this something that should be fixed?" will work just fine.  One does not just walk into a forum and start calling everything unacceptable and unusable and expect to get a friendly response.

Point is, show a little respect and you will get some in return.  Pissing people off by an extremely cocky attitude is not a good way to go about things.

e280ruser:
You really shouldn't complain about an open source, free program.  If you don't like something about it then improve it.  After all you are a software engineer.

--- Quote from: mdouet http://forums.rockbox.org/index.php?topic=12908.msg97683#msg97683 ---Once again I think it's pretty sad that I had to write a program to be able to use RB, good thing I'm a Software Engineer or I wouldn't be able to use this firmware at all.

--- End quote ---

http://svn.rockbox.org/viewvc.cgi/
The source is there, so use it, don't complain about it.  If you actually are a software engineer, then you should know how much effort it takes to write a program, let alone a from scratch firmware for a mp3 player with virtually no documentation.  Don't be pretentious, it gets you no where in life.  .Please give this a read.  It may not be rockbox v. the original firmware, but the idea is the same.  Skip to problem 3... I  hope it is acceptable for you
http://linux.oneandoneis2.org/LNW.htm

--- Quote from: http://linux.oneandoneis2.org/LNW.htm ---In much the same way, a Windows user is used to using commercial software. Companies don't release software until it's reliable, functional, and user-friendly enough. So this is what a Windows user tends to expect from software: It starts at version 1.0. Linux software, however, tends to get released almost as soon as it's written: It starts at version 0.1. This way, people who really need the functionality can get it ASAP; interested developers can get involved in helping improve the code; and the community as a whole stays aware of what's going on.

If a "3a" user runs into trouble with Linux, he'll complain: The software hasn't met his standards, and he thinks he has a right to expect that standard. His mood won't be improved when he gets sarcastic replies like "I'd demand a refund if I were you"

--- End quote ---


--- Quote from: http://linux.oneandoneis2.org/LNW.htm ---The problem is that this isn't paid-for support. This is a bunch of volunteers who are willing to help people with problems out of the goodness of their hearts. The new user has no right to demand anything from them, any more than somebody collecting for charity can demand larger donations from contributors.

--- End quote ---
I'd demand a refund if I were you

AlexP:
People are more than welcome to criticise (helpfully), make suggestions etc., we try not to just run away with our hands over our ears when someone complains.  However, there is a big difference in how you do that:

Scenario 1)  
Us - "You are welcome to try this program we have made"
You - "Thanks!  I've noticed a problem with x.  Is it a bug or have I done something wrong?"
Us - "That's a bug, hopefully it'll get fixed soon.  You can help!"

Scenario 2)
Us - "You are welcome to try this program we have made"
You - "This sucks, it is unacceptable."
Us - "Here's a full refund, goodbye"

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