XScreensaver problem

ThePacman · 2014-01-20 03:35:42

When running xscreensaver in a mode that requires images, such as GLSlideshow, it only displays the stock image.

Run from the terminal, I get this message:

xscreensaver-getimage-video: none of: "bttvgrab", "qcam", "gqcam", "v4lctl", "streamer", "atitv", "grab", "motioneye", "vidcat", or "vidtomem" were found on $PATH.

What should I do? I'd imaging I should install one of the listed tools, but I can't seem to find info on them. What package should I install?

toz · 2014-01-20 13:56:51

ThePacman wrote:

When running xscreensaver in a mode that requires images, such as GLSlideshow, it only displays the stock image.

Is perl-libwww installed?

Run from the terminal, I get this message:

xscreensaver-getimage-video: none of: "bttvgrab", "qcam", "gqcam", "v4lctl", "streamer", "atitv", "grab", "motioneye", "vidcat", or "vidtomem" were found on $PATH.

What command are you running? I get the same message when I run xscreensaver-getimage-video directly (I don't believe its meant to be run directly). What happens when you run:

/usr/lib/xscreensaver/glslideshow

What should I do? I'd imaging I should install one of the listed tools, but I can't seem to find info on them. What package should I install?

Does:

cat ~/.xscreensaver | grep imageDirectory

...point to a valid image directory?

ThePacman · 2014-01-21 04:28:47

toz wrote:

Is perl-libwww installed?

Yes, version 6.05-1.

toz wrote:

Run from the terminal, I get this message:
xscreensaver-getimage-video: none of: "bttvgrab", "qcam", "gqcam", "v4lctl", "streamer", "atitv", "grab", "motioneye", "vidcat", or "vidtomem" were found on $PATH.
What command are you running? I get the same message when I run xscreensaver-getimage-video directly (I don't believe its meant to be run directly). What happens when you run:
/usr/lib/xscreensaver/glslideshow

I get exactly the same error as earlier, when I ran xscreensaver-demo (which passed the output the screensaver gave).

toz wrote:

What should I do? I'd imaging I should install one of the listed tools, but I can't seem to find info on them. What package should I install?
Does:
cat ~/.xscreensaver | grep imageDirectory
...point to a valid image directory?

No; no image directory. I only had webcam images enabled.

toz · 2014-01-21 11:32:35

Oh, webcam images, i thought you were trying just regular images. Just tried my webcam and I needed to install the package xawtv to get it to work. v4lctl is in that package.

ThePacman · 2014-01-27 22:19:02

toz wrote:

Oh, webcam images, i thought you were trying just regular images. Just tried my webcam and I needed to install the package xawtv to get it to work. v4lctl is in that package.

Okay, the pictures are unusable. The lighting is just horrific. v4l2 (what VLC uses) works fine, but even after fiddling with the v4lctl brightness, the pictures are grey/brown, grainy, and the only time a shape can be made out is if I point it straight at a light, at which point the light will be marginally visible. Is there any "hack" to use v4l2 as the backend for v4l requests? (Something along the lines of the wrapper scripts that trick Truecrypt into launching PCManFM or Thunar when it tries to launch Nautilus.)

progandy · 2014-01-27 22:33:44

Maybe you could try w3cam (provides the vidcat binary)

ThePacman · 2014-01-27 23:22:00

progandy wrote:

Maybe you could try w3cam (provides the vidcat binary)

xscreensaver-getimage-video: "vidcat -b -f ppm -s 640x480 > /tmp/xssv.f6f5c051.ppm 2>-" produced no data.

Running vidcat gives me:

$ vidcat
ioctl (VIDIOCGCAP): Inappropriate ioctl for device
$ vidcat -d /dev/webcam
ioctl (VIDIOCGCAP): Inappropriate ioctl for device
$

Arch Linux

#1 2014-01-20 03:35:42

XScreensaver problem

#2 2014-01-20 13:56:51

Re: XScreensaver problem

#3 2014-01-21 04:28:47

Re: XScreensaver problem

#4 2014-01-21 11:32:35

Re: XScreensaver problem

#5 2014-01-27 22:19:02

Re: XScreensaver problem

#6 2014-01-27 22:33:44

Re: XScreensaver problem

#7 2014-01-27 23:22:00

Re: XScreensaver problem

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