Comment 8 for bug 1194761

Revision history for this message
Po-Hsu Lin (cypressyew) wrote : Re: Camera - Microdia [0c45:648d] camera_test is unable to take still pictures

Hello,

I verified this issue again on 201203-10656
by following these steps:
1. Install Ubuntu, boot to desktop, install fswebcam
2. run "fswebcam --save OK.jpg"
3. run "fswebcam --save OK.jpg -D 1"

This problem still exist on:
3.5.0-44 (12.04.2 + update)
3.8.0-29 (12.04.3)
3.12.0-7 (daily-live Trusty)

For all of these kernels,
On step 2,
picture cannot be taken, the webcam LED will be lit for a while
and the following error message pops-up:
"Timed out waiting for frame!"
"No frame captured"

On step 3,
webcam LED flashes and picture can be taken correctly.

Also, I have it tested with 3.10-rc7 again for consistency.
I would like to rephrase what I tested for v3.10-rc7
On this kernel, step 2 works fine for one time after boot,
but if you do it again, it behaves like other kernels

Step 3 also works for 3.10-rc7

Along with the -v tweak that I mention earlier,
I think it's the delay time that make the difference on this specific Rev. of device.