[kernel 2.6] Digital camera "crashed" when plugging in (urgent!)

FnordPerfect · 01-11-2007, 10:53 AM

Hello,

I very seldom use my camera, but now I've made some pictures I need to transfer to my computer. (Alas, I don't have a card reader, so I'm bound to use USB.)

It *used* to work in the past (with kernel 2.4 and hotplug)... I plugged it in, mounted the cam as USB storage device.. worked like a charm.

But now, I'm using kernel 2.6.19 and udev -- and the camera crashes!!
The "flash" LED is blinking madly (I suppose that's indicating some kind of error), and it doesn't respond anymore. It's doing so for 5 minutes now and I guess I have to take out the batteries for it to stop... :-(

It is a Jenoptik 4.1x z3

Please help asap! It's kinda urgent... :-(
fabian

Here's what the kernel says:

Code:

usb 5-2.4: new full speed USB device using ehci_hcd and address 39
usb 5-2.4: device descriptor read/64, error -32
usb 5-2.4: device descriptor read/64, error -32
usb 5-2.4: new full speed USB device using ehci_hcd and address 40
usb 5-2.4: device descriptor read/64, error -32
usb 5-2.4: device descriptor read/64, error -32
usb 5-2.4: new full speed USB device using ehci_hcd and address 41
usb 5-2.4: device not accepting address 41, error -32
usb 5-2.4: new full speed USB device using ehci_hcd and address 42
usb 5-2.4: device not accepting address 42, error -32

Okie · 01-11-2007, 11:19 AM

have you ever tried gphoto2 ?

FnordPerfect · 01-11-2007, 11:57 AM

> have you ever tried gphoto2 ?

No, I was pretty happy just using this thing via USB storage.

And now is a pretty bad time to test it out, since the camera "crashes" as soon as I plug it into a USB port!

I tried plugging it to some other ports, not using my Hub; no luck.

I will try to find some semi-up-to-date Live-CD distro, perhaps this will do it for now...

However, I still would really appreciate some more help here!
It drives me nuts when stuff that once worked just stops... :-(

Thanks anyway
fabian

Okie · 01-11-2007, 12:01 PM

i know debian likes to re-name packages, so it probably wont be as simple as apt-get install gphoto2 , you may want to run synaptic and search for libgphoto2 or gphoto2 and see what pops up, gtkam is a great GUI frontend for gphoto2, give it a try as it wont hurt anything...

FnordPerfect · 01-11-2007, 12:58 PM

Yeah, I'd love to give it a try. Tell you what... as a matter of fact I had it already installed, I just haven't used it yet.

However, I cannot try it out now, since the camera is not even detected properly as a USB device anymore! It crashes right after I plug it in!
So this is more of a low-level, kernel-related, USB-driver kind of problem...

In the meantime, I booted an old DamnSmallLinux Live CD; and there I could plug it in, mount it, copy the pictures.

So there's something wrong with my Debian installation!

More help please...

Thanks
fabian

Okie · 01-11-2007, 01:46 PM

coule it be a gnome issue? log off gnome and log on to simething lightweight that you have installed, twm? fluxbox? whatever you already have as an alternative to gnome or kde.

FnordPerfect · 01-11-2007, 03:39 PM

I don't use Gnome but KDE. Anyway, I tried it, and to push it even further, I didn't start any Desktop at all but stayed console-only, single-user mode.

* So, I plugged the camera in.
* Since syslog didn't run I got flooded with all those crazy kernel messages about the USB device not working.
* The camera crashed and wouldn't respond to anything but taking out the batteries :-(

ergo: I am still pretty sure it's a kernel issue!

Now that I managed to get the photos off that thing with DamnSmallLinux, I have more time to investigate (grously, however, since it *once worked* and suddenly *stopped working*, which is something that I really loathe...)

My DamnSmallLinux is pretty old and still uses kernel 2.4 ...
Next thing I'll try is to boot a Ubuntu Live CD which uses 2.6 and see what it says...

Anyway, I'm grateful for any further hints..!

fabian

Emerson · 01-11-2007, 04:02 PM

Try disabling ehci and use uhci (or ohci) instead.

FnordPerfect · 01-11-2007, 04:43 PM

I must confess, I find all this usb stuff in the kernel a bit overwhelming..

I had both ehci and uhci compiled as modules. -- And *both* were loaded!
I just thought I needed both with my board, and ehci was necessary for USB2.0 ..?

this is some of the output of lspci

Code:

00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)

So I figured it has both USB1.1 *and* USB2.0 controllers on it...

But yes, this must be the right trace...

I rmmoded the module ehci_hcd, but upon plugging in the same things happen. :-/

Perhaps some piece of hardware is confused and I need to reboot cleanly without having ehci_esd loaded...?
Perhaps the camera is buggy and doesn't work with USB2.0??
Perhaps I have to find out which ports lead to which USB controller in the end??? :-(

I will continue tomorrow, and I greatly appreciate your help!

thanks and good night
fabian

Emerson · 01-11-2007, 04:48 PM

Checking if your camera crashes on both USB 2 and 1 ports is definitely worth a try.