Red Hat Bugzilla – Bug 623315
Webcam [064e:a116] don't work with some software
Last modified: 2011-05-21 16:44:26 EDT
Description of problem: When I will use my webcam with emesene or cheese, the kernel log says "uvcvideo: Failed to resubmit video URB (-27)" like in the Bug 600998. But webcam works with ekiga.
Version-Release number of selected component (if applicable): Fedora 13
How reproducible: Use a webcam's user software
Steps to Reproduce:
1.Load a kernel after the 2.6.32 series
2.Use a webcam's user software
Actual results: A black screen
Expected results: Webcam's frame
Additional info: I tried some Fedora's kernel (from 2.6.32 to 2.6.35). Only the 2.6.32 series works with a lot of difficulties.
My webcam is (Bus 002 Device 002: ID 064e:a116 Suyin Corp).
My laptop is an Asus K50AD series
Can you try the kernel-126.96.36.199-37.fc13 update please, see bug 600998 comment 11 for installation instructions.
I updated the kernel to kernel-188.8.131.52-37.fc13 but it doesn't work anymore with all software. The kernel log message is still "uvcvideo: Failed to resubmit video URB (-27)".
Ok, thanks for trying. I'll get the uvcvideo driver author to talk to you further about this. He will likely ask you to create some debug logs.
Yes, I can create debug logs but which logs you want to have?
-27 is -EFBIG, and means
"Host controller driver can't schedule that many ISO frames."
It's a low-level issue that might indicate a bug in the EHCI driver.
I don't think there's much I can do in the uvcvideo driver. Could you get in touch with the USB core and EHCI developers (through the linux-usb mailing list) ?
Closing this as cantfix per comment #5.