streamer fails to load video image from integrated webcam

I first noticed this after a recent Jaunty update (this system is stock Jaunty 32-bit with netbook-remix), when xscreensaver started to fail to grab webcam pix via streamer:

hennessy@hactar:~$ streamer -d -o /tmp/foobar.ppm
checking writer files [multiple image files] ...
  video name=ppm ext=ppm: OK
files / video: 24 bit TrueColor (BE: rgb) / audio: none
vid-open: trying: v4l2-old...
vid-open: failed: v4l2-old
vid-open: trying: v4l2...
v4l2: open
v4l2: device info:
  uvcvideo 0.1.0 / Acer Crystal Eye webcam @ 0000:00:1d.7
vid-open: ok: v4l2
movie_init_writer start
v4l2: new capture params (320x240, RGB3, 230400 byte)
setformat: 24 bit TrueColor (BE: rgb) (320x240): ok
v4l2: new capture params (320x240, RGB3, 230400 byte)
writer_video_thread start [pid=25826]
movie_init_writer end (h=0x8500610)
movie_writer_start
v4l2: buf 0: video-cap 0xabcdef00+16777216, used 0
v4l2: buf 1: video-cap 0xabcdef01+16777216, used 0
v4l2: buf 2: video-cap 0xabcdef02+16777216, used 0
v4l2: buf 3: video-cap 0xabcdef03+16777216, used 0
v4l2: buf 4: video-cap 0xabcdef04+16777216, used 0
v4l2: buf 5: video-cap 0xabcdef05+16777216, used 0
v4l2: buf 6: video-cap 0xabcdef06+16777216, used 0
v4l2: buf 7: video-cap 0xabcdef07+16777216, used 0
v4l2: buf 8: video-cap 0xabcdef08+16777216, used 0
v4l2: buf 9: video-cap 0xabcdef09+16777216, used 0
v4l2: buf 10: video-cap 0xabcdef0a+16777216, used 0
v4l2: buf 11: video-cap 0xabcdef0b+16777216, used 0
v4l2: buf 12: video-cap 0xabcdef0c+16777216, used 0
v4l2: buf 13: video-cap 0xabcdef0d+16777216, used 0
v4l2: buf 14: video-cap 0xabcdef0e+16777216, used 0
v4l2: buf 15: video-cap 0xabcdef0f+16777216, used 0
libv4l2: error turning on stream: Cannot allocate memory
ioctl: VIDIOC_STREAMON(int=1): Cannot allocate memory
v4l2: oops: select timeout
grab_put_video: grab image failed
v4l2: oops: select timeout
grab_put_video: grab image failed
v4l2: oops: select timeout
grab_put_video: grab image failed
^C^C - one moment please
^C^C - one moment please
^Z
[1]+ Stopped streamer -d -o /tmp/foobar.ppm
hennessy@hactar:~$ kill -9 %1

[1]+ Stopped streamer -d -o /tmp/foobar.ppm
hennessy@hactar:~$
[1]+ Killed streamer -d -o /tmp/foobar.ppm
hennessy@hactar:~$