cheese records at a painfully slow fps
Bug #332381 reported by
Michael Janos
This bug report is a duplicate of:
Bug #385344: Netbooks- Cheese video recording is laggy at higher video resolutions.
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This bug affects 17 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
cheese (Fedora) |
Confirmed
|
Unknown
|
|||
cheese (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: cheese
running on an eee pc 900ha
OS: 8.10 and 9.04 both with the latest updates
Kernel:
8.10- 2.6.27-8-eeepc
9.04- 2.6.28-8-generic
using the latest cheese packages available in each installation
When taking video the fps of the video drop to a frame every 4 seconds or so creating an extremely laggy slideshow
Changed in cheese (Fedora): | |
status: | Unknown → Confirmed |
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I have a similar problem but on much faster hardware, a 2.4GHz Intel dual core2 laptop with a 1.3MP built-in camera. I run ubuntu 8.10 with all the latest updates. Many seconds by between video frames.
Today I discovered a way to work around this problem. What I do is run this script on a terminal window.
while true; do echo > /dev/null; done
That script keeps the CPU busy. When that script is running cheese displays video at a reasonable frame rate. Stop the script and frame rates goes back to super slow.
I think this is related to the automatic CPU frequency adjustment in the laptop. When the script above is running the CPU applet shows the CPU frequency as 2.4GHz. When the script is stopped the CPU frequency stays at 800MHz even if cheese is running and trying to capture video.
So maybe this isn't really a cheese bug, but perhaps cheese should try to force the CPU to run at maximum frequency when it is trying to capture video?