Discussion of now-committed ipod startup workaround

[Falco98]

I think this patch (due to the nature of how it shuts down the ipod) may be what's causing weird startup issues when plugged into a car connector.  Previously I was able to just plug it in to the car connector in its "off" state and it would start up and start playing; now, however, the ipod does start up fine but the car display *always* halts at "ipod connection problem" and refuses to do anything until I reseat the cable with the ipod already on.  I'll imagine this is a real specific corner-case type situation, but I'm wondering if it will have implications on other similar functions.
My equipment: ipod 80gb 5.5g
car: 2006 scion with ipod connector dock

[torne]

Can you build Rockbox? You can easily discover if this is the problem by comparing a build of SVN r24206 and r24207, which were the versions immediately before/after this change. I don't have any accessories to test this with.

[torne]

vocrobot, the change was committed several weeks ago; there is no need to comment on whether you have the problem.

[Falco98]

Can you build Rockbox? You can easily discover if this is the problem by comparing a build of SVN r24206 and r24207, which were the versions immediately before/after this change. I don't have any accessories to test this with.

Good point - I'll try if I get a chance.  I only just re-setup my system to make builds a few weeks ago so I could write a patch (for the first time in a few years).

[dcr693]

Hey everyone, I got a replacement 1G 4Gb nano recently, and I cannot start up Rockbox without resetting it with MENU+SELECT each and every time. I've tried turning it on about 10 tens, and I can't get it to wake up normally hitting Menu or Select. I have to reset it every time. I can indeed see what looks like the "low battery" indicator flashing. My battery was at least 50% charged each time I tried.

I'm running v3.5.1 build 25219, just downloaded this morning.

[torne]

That's odd, but I don't know what I can suggest.. the workaround has worked very well for basically everyone else.

Also, I don't think anyone else has previously experienced it 100% of the time. Even my ipodvideo64mb which had the problem very frequently only did it one time in three or four...

[dcr693]

Thanks for the reply.

In fact, it gets worse. When I shut down under Rockbox, I can see that the screen is flashing "Please wait Very Low Battery" continuously. I might be able to live with that, but it's doubtless eating the battery as it's idle. In the end, it might not even be the same problem as the one you've posted about here.

This might just be a bad nano. I'm going to try restoring it in iTunes and reinstalling RB. I pray that fixes it.

[Falco98]

I am also having a hard time getting the ipod into standard USB mode (as a reminder I am using a 5.5g 80gig, running the 3.5 official build);  When I plug in my USB cable from a powered-off state, it boots into rockbox and then goes to the "Multimedia Mode" screen (with the picture of the USB plug), but as opposed to what it's done before, it never bothers to reset into the "do not disconnect" screen on which I actually get USB connectivity to my PC.  I have no choice at this point but to UNPLUG the usb cable, at which point the ipod *then* decides to reboot into the "Do Not Disconnect" screen, rather briefly, before realizing no USB is plugged in and restarting into Rockbox again.  Argh!  (I tried once, and if I plug the cable BACK in just before getting to the DND screen, it will work).
So now I'm back on my WPS screen and, while it's running, i plug the cable in, and of course now it cycles properly to the DND screen; but only by doing this (i.e. powering the unit on first) can I cleanly get there.  It seems a little odd.

[torne]

Hm, there is seperate code to handle what we call "early" USB, i.e. when the USB cable is already connected at boot. However, it ultimately does the same thing, and I can't see how the shutdown change can make a difference..

I think I have a better fix for this problem, and I'm going to post some test builds later. You can try one of those to see if it fixes the issues you are having?

[torne]

OK, test builds for the new fix are here: http://forums.rockbox.org/index.php?topic=24376.0
If you have been having any problems since the commit of this workaround, try the new fix and see if your problems go away (but also make sure the startup bug hasn't been reintroduced).

[Falco98]

OK, test builds for the new fix are here: http://forums.rockbox.org/index.php?topic=24376.0
If you have been having any problems since the commit of this workaround, try the new fix and see if your problems go away (but also make sure the startup bug hasn't been reintroduced).

I can try it - testing against the startup bug is hard since it's intermittent (and slightly uncommon).  BTW, coach me as to what files *exactly* i have to replace when updating my current build with a newly-built version?  I've tried replacing just the executable before and it caused immediate and halting problems, so I figure I should ask.

[saratoga]

BTW, coach me as to what files *exactly* i have to replace when updating my current build with a newly-built version?  I've tried replacing just the executable before and it caused immediate and halting problems, so I figure I should ask.

See the section on updating rockbox in the manual:

http://download.rockbox.org/daily/manual/rockbox-ipodvideo/rockbox-buildch2.html#x4-200002.4

[Falco98]

BTW, coach me as to what files *exactly* i have to replace when updating my current build with a newly-built version?  I've tried replacing just the executable before and it caused immediate and halting problems, so I figure I should ask.

See the section on updating rockbox in the manual:

http://download.rockbox.org/daily/manual/rockbox-ipodvideo/rockbox-buildch2.html#x4-200002.4

Actually it ends up that I had to do fresh installs to get it working (had been overwriting files before, as the manual instructs).  It's a little bit of a pain to get all settings transferred and operational again, but seems to be working ok for now.

[torne]

I can try it - testing against the startup bug is hard since it's intermittent (and slightly uncommon).

The idea is you would use this as your main build for days/weeks/months, so if it's going to happen it would show up.

[Falco98]

I can try it - testing against the startup bug is hard since it's intermittent (and slightly uncommon).

The idea is you would use this as your main build for days/weeks/months, so if it's going to happen it would show up.

Yup, will do, running your 3.5.1 now.