Bug 538669

Summary:	Cheese's viewfinder doesn't display input from Quickcam Connect E2500 (but photos can still take)
Product:	[Fedora] Fedora	Reporter:	Richard Schwarting <aquarichy>
Component:	cheese	Assignee:	Hans de Goede <hdegoede>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	12	CC:	hdegoede, mclasen
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-11-19 12:03:11 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Richard Schwarting 2009-11-19 02:41:32 UTC

Description of problem:
I have an IBM Thinkpad X41t with an Intel chipset (915GM).

At the beginning of Fedora 11, my Quickcam Connect E2500 (046d:089d) displayed a stream in Cheese and xawtv.   Yay!

A few months ago in F11, that changed.  xawtv still displayed the feed from the camera, but Cheese stopped, and instead only showed the first frame it got from the camera. However, I could still take photos from it and they would grab what was in fact before the camera at that point.

I've now preupgraded to F12 final and now Cheese doesn't display even the first frame.   xawtv now shows blackness.  However, I can still successfully take photos of what's in front of the camera!

While I am glad to hear about the improved webcam support in F11/F12, it's hard to believe when suffering regressions :( 

That said, my girlfriend has an HP Pavilion tx2500, which has an ATI Radeon 3200HD, and the webcam plugged into there worked fine with the Fedora 12 Beta Live CD.

Version-Release number of selected component (if applicable):
cheese-2.28.1-1.fc12
xawtv-3.95-12.fc12.1

How reproducible:
Always

Steps to Reproduce:
1. plug in the webcam
2. open cheese or xawtv
3. jump in front of the camera
  
Actual results:
I should see a stream of frames of me jumping

Expected results:
No images are streamed in from the webcam.

Additional info:

Comment 1 Hans de Goede 2009-11-19 11:12:02 UTC

Hmm, weird. I have such a camera myself, and it works fine for me under cheese (well there is some distortion at the bottom few rows of the frame, but it does
 stream).

As for xawtv that seems to be broken in F-12 in general, at least on my system.

If you start cheese from a terminal do you get any messages ?

also can you attach ~/.gnome2/cheese/log.txt to this bug report (from after a failed streaming attempt)

Comment 2 Richard Schwarting 2009-11-19 11:36:21 UTC

Whoops!  I meant to come back and edit this.  It's just a side-effect of bug 538727.  I have an Intel 915GM and have been using it with dual monitors in a way that goes beyond its max Xvimage size, I think.  

This breaks a lot of things for me like Compiz, the Cheese viewfinder, Rhythmbox and Totem visualisations, some games, and mplayer -vo xv mode. 

Perhaps all those have a bug in that perhaps it's possible for them to check that Xv is available but instead just assume it does, but in my ignorance, I'm under the vague impression that the max size might be overcome with something to do with overlays.  I don't really know, but yah, when I don't use the second monitor, or when I do but its size is within limits, Cheese and this webcam work more or less fine :)  (except for huffman decoding errors that stream into my .xsession-errors :D

Comment 3 Hans de Goede 2009-11-19 12:03:11 UTC

Ok, closing this.

About the huffman decoding errors, known error which I need to look into and
fix one of these days.