Issue with a cropped image when resolution is greater than 1280x960

[jaketeater]

I am capturing images with a webcam that supports up to 2048x1536 resolution in Linux. (The camera is capable of 2560x1920).

When I capture images at 2048x1536, it appears to capture a portion (starting from the bottom left) of the 2560x1920. See the image below, on the left the eagle is the same size as on the right, showing that the image was cropped.

The only happens at resolutions over 1280x960.

I have two cameras, one that works, and one that crops over 1280. Both cameras are identical models.

I did a lsusb -v on the device and the only difference I saw between the two cameras was this:

Working camera:
bmVideoStandards 0xff
None
NTSC - 525/60
PAL - 625/50
SECAM - 625/50
NTSC - 625/50
PAL - 525/60

Camera that crops:
bmVideoStandards 0x7f
None
NTSC - 525/60
PAL - 625/50
SECAM - 625/50
NTSC - 625/50
PAL - 525/60

Any Ideas?

Thanks!

[minus5m]

To me this happens if I set a resolution above 1280*720 (even though my camera should support 1920x1080)

[fsphil]

Does this happen in other applications or just fswebcam?

[minus5m]

I tried it with Motion now and it does the same thing..
The same webcam on a PC with YAWCAM can save a 19201080 picture (although I am not sure if this is scaled up) - but the camera specifications say that 19201080 is possible (Widecam F100).