Bug 747885

Summary: uvcvideo camera doesn't give picture
Product: [Fedora] Fedora Reporter: Fabian Deutsch <fabian.deutsch>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 15CC: gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
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Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2011-11-10 09:25:19 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
dmesg after load uvcvideo with trace=0xfff none

Description Fabian Deutsch 2011-10-21 09:10:00 UTC 
Description of problem:
Running gst-launch on a uvcvideo camera doesn't lead to a displayed videostream

Version-Release number of selected component (if applicable):
Curren Fedora 15 all updates

How reproducible:
always

Steps to Reproduce:
1. gst-launch v4l2src ! cogcolorspace ! autovideosink
2.
3.
  
Actual results:
The camera-is-on-light is truned on, the camera returns available formats (seen using GST_DEBUG=3) but no video stream is displayed

Expected results:
a window pops up showing the video.

Additional info:
it worked during the f15 cycle until some updates poored in (dunno which one caused it to be broken)
Comment 1 Fabian Deutsch 2011-10-21 11:04:26 UTC 
Created attachment 529474 [details]
dmesg after load uvcvideo with trace=0xfff

This dmesg output seems to indicate that the frame is propperly processed by uvcvideo, maybe this problem is in gst?
Comment 2 Fabian Deutsch 2011-11-07 09:37:53 UTC 
There is still no change up to today.

Is it only me who is affected?
Comment 3 Fabian Deutsch 2011-11-10 09:25:19 UTC 
Okay, this seems to be a problem on the wnidow side, not the camera.
If I use a Clutter Texture to view the webcam picture, everything goes well. So this seems to be something on the sink side.