Bug 506055 - Cheese webcam video slow/jerky in F11 on a Dell Inspiron 1520
Cheese webcam video slow/jerky in F11 on a Dell Inspiron 1520
Status: CLOSED NOTABUG
Product: Fedora
Classification: Fedora
Component: cheese (Show other bugs)
11
All Linux
low Severity medium
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Assigned To: Matthias Clasen
Fedora Extras Quality Assurance
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2009-06-15 08:18 EDT by J Gallagher
Modified: 2009-06-15 09:53 EDT (History)
2 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Clone Of:
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Last Closed: 2009-06-15 09:13:33 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description J Gallagher 2009-06-15 08:18:29 EDT
Description of problem:
Video in Cheese is slow/jerky in F11 on a Dell Inspiron 1520. In UCView (for example) it is smooth with >30fps


Version-Release number of selected component (if applicable):
cheese-2.26.0-1.fc11.x86_64
kernel-2.6.29.4-167.fc11.x86_64

How reproducible:
Always.

Steps to Reproduce:
1. Start Cheese webcam booth in F11.
2. Observe slow/jerky video
3.
  
Actual results:
Slow/jerky video


Expected results:
Smooth video

Additional info:
Bus 002 Device 003: ID 05a9:2640 OmniVision Technologies, Inc. OV2640 Webcam

01:00.0 VGA compatible controller: nVidia Corporation GeForce 8600M GT (rev a1)
(using nvida driver from rpmfusion)
Comment 1 Hans de Goede 2009-06-15 08:36:41 EDT
Cheese by default uses the highest resolution your cam can deliver, which sometimes may result in low framerates. Go to edit -> preferences and select 640x480 or something like that, that should make things better.
Comment 2 J Gallagher 2009-06-15 08:49:22 EDT
Thanks, that does help, if I reduce it to 800x600, anything above that is still slow (which is surprising considering I have a Core2 Duo @ 2GHz and nVidia 8600M graphics) 

Still, why does it default to 1600x1200 when the max display resolution is 1280x800? Shouldn't it try to match the display a bit better?
Comment 3 Hans de Goede 2009-06-15 09:13:33 EDT
(In reply to comment #2)
> Thanks, that does help, if I reduce it to 800x600, anything above that is still
> slow (which is surprising considering I have a Core2 Duo @ 2GHz and nVidia
> 8600M graphics) 
> 

Well, its probably a usb 1.1 device, so the usb bandwidth is limiting the framerate.

> Still, why does it default to 1600x1200 when the max display resolution is
> 1280x800? Shouldn't it try to match the display a bit better?  

Good point, can you please file a bug about this upstream ? :
http://bugzilla.gnome.org/enter_bug.cgi?product=cheese

Thanks!
Comment 4 J Gallagher 2009-06-15 09:53:29 EDT
done

http://bugzilla.gnome.org/show_bug.cgi?id=585857

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