Tue, 8 Jan 2002 10:22:34 -0500 - Brian J. Murrell > On Tue, Jan 08, 2002 at 03:47:37AM -0600, Erik W Hanson wrote: > > v4lctl setattr "VCR Hack" 1 > > cmd: VCR Hack: attribute not found > > valid choices are: "bright", "contrast", "color", "hue", "mute", "norm", "input" > > You need to unset DISPLAY or set it to something that will not resolve > to your Xvideo capable X-server. v4lctl uses the APIs "Xvideo, v4l2, > v4l" in that order. The VCR Hack is only available in v4l2 so you > need to prevent v4lctl from using the Xvideo extention in your > Xserver. > > > notice agc, comb, luma, automute, audio mode are not listed, but show up in > > xawtv's menu only when _not_ using xv. > > Right. v4l2 has all the neat knobs, not xv. Therefore you need to > force xawtv and v4lctl to use v4l2. xawtv has a switch for it, v4lctl > does not, so making DISPLAY invalid has the same effect. So I'm out of luck then. If I try to use xawtv without xv, I can't change channels or anything, I get lots of errors and it finally segfaults when I try to change channel: ioctl: VIDIOC_G_TUNER(cmd=0xc090561d): Invalid argument ioctl: VIDIOC_G_TUNER(cmd=0xc090561d): Invalid argument ioctl: VIDIOC_S_TUNER(cmd=0x4090561e): Invalid argument Segmentation fault The errors appear randomly while viewing. -Erik
