On Wed, Jun 08, 2005 at 04:49:16PM +0200, Luc Saillard wrote:
> On Tue, Jun 07, 2005 at 11:13:29PM +0300, wrote:
> > How come switching to runlevel 3 fixes the pwc driver problem at least
> > "partly", meaning I can restart pwc-driver and video device?
>
> Because i don't know what runlevel3 do on a fedora system. If you want to be
> sure (and i don't understand your bug report in bugzilla) that no other
> application is running, use at start init=/bin/sh, then mount all your
> filesystem, load pwc module, and launch your application that grab some
In Fedora, runlevel3 is everything but X (and gdm, GNOME, stuff over X)
runlevel 5 is then with X.
>From /etc/inittab:
# Default runlevel. The runlevels used by RHS are:
# 3 - Full multiuser mode
# 5 - X11
> video. But if the problem is in ps2+usb, i can't help. pwc is special because
> it's use some isochronous message on the usb bus. But any webcam uses
> this, so try to switch to another webcam ? If i fully understand, you lost
I have tried with two new webcams, but both were Logitech Quickcam 4000 Pros.
Also with two different USB controllers.
> some (too many) urb (packets), and the usb stack can't recover from error.
> Perhaps you PCI bus, usb (because you use bluetooth key, ...) use too much
> cpu times to transfer data in continous. If the kernel x.y.z works, try to
Maybe.
> narrow down the bug to test every kernel until this bug is not working. Try
Yes, I will. The frustrating problem is, with some kernels also keyboard
and mouse stops working when pwc driver stops and it is hard to debug
after that.
> each -rc, and bk to find the patch that have break the usb stack or the ps2
> stack .... I don't have your computer, so i can't do the test for you.
> Sorry for being to answer this,
No problem, I understand fully. But already now, I have got some new
ideas how to narrow down the problem, which I wouldn't have got if I
wouldn't have filed a bug report.
This could be a hardware problem, but yet I think even if it is, it also is
a software bug, because the system in many cases becomes unusabe (DOS)
for reasons which are still unknown. It could be a Xorg Input-driver
problem. (at least nvidia and nv X-drivers behave the same)
// jouni
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