Date: Tue, 4 May 2010 16:46:06 +0200 From: Milan Obuch <freebsd-multimedia@dino.sk> To: freebsd-multimedia@freebsd.org Subject: Re: webcamd/pwcview report Message-ID: <201005041646.07106.freebsd-multimedia@dino.sk> In-Reply-To: <201004290841.55708.freebsd-multimedia@dino.sk> References: <201004290841.55708.freebsd-multimedia@dino.sk>
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On Thursday 29 April 2010 08:41:55 Milan Obuch wrote:
> Hi,
>
> today I tried webcam support on my MSI Wind U100 netbook. I just did
>
> cd /usr/ports/multimedia/webcamd
> make install clean
> cd /usr/ports/multimedia/pwcview
> make install clean
> kldload cuse4bsd
> /usr/local/etc/rc.d/webcamd onestart
> pwcview
>
> and it just worked. Big thanks to Hans Petter who made this possible. I was
> able to test with both internal webcamera and small external camera:
>
[ snip ]
> There is one issue in my case: I tested it under console, and after
> pressing 'q' display remains dark. No output seen there any more, but I can
> blindly type 'pwciew' and image from webcamera is there again. Card used
> there is
>
> vgapci0@pci0:0:2:0: class=0x030000 card=0x01101462 chip=0x27ae8086
> rev=0x03 hdr=0x00
> vendor = 'Intel Corporation'
> device = 'Mobile 945 Express Chipset Family'
> class = display
> subclass = VGA
>
> Also, I would like to run pwcview or something similar remotely, maybe over
> ssh connection. No success now, just cleared screen. If someone has any
> advice, I am all ears.
>
Some more testing done, just after upgrade to new version of webcamd and
cuse4bsd in ports, but for this it seems not to be relevant.
I discovered there is a problem with pwcview when run from console using
graphics mode, at least with some VESA resolution. After pressing 'q' picture
disappears, but I found no way how to return into normal shell, even after
webcam disconnect. When tested with my MSI Wind on console with standard
25x80 text screen it exits after pressing 'q', but waits until I disconect
webcam (internal via hotkey, external pulling out of port). Then I can work
again normally.
I tried it on Compaq/HP TabletPC TC1000, but pwcview does not work here. With
this VGA
vgapci0@pci0:0:5:0: class=0x030000 card=0x00b50e11 chip=0x011210de
rev=0xb2 hdr=0x00
vendor = 'Nvidia Corp'
device = 'GeForce2 Go / MX Ultra (NV11)'
class = display
subclass = VGA
it just initializes webcam (used the same external one), green LED is on, but
program halts with message 'SDL Failed to set videomode: Unable to switch to
requested mode'.
On TC1000 I tried also run pwcview from X. This did not work. All I got was
three lines:
Webcam set to: 320x240 (sif) at 5 fps
libv4l2: error dequeuing buf: Device not configured
Error readingfrom webcam: Device not configured
No idea what could be done here, either.
One more system I can test this has the following:
vgapci0@pci0:1:0:0: class=0x030000 card=0x81291043 chip=0x31081106
rev=0x01 hdr=0x00
vendor = 'VIA Technologies Inc'
device = 'Via Unichrome S3 VGA - part of a VIA Northbridge (Unknown)'
class = display
subclass = VGA
Here it works a bit better - while it does not work with graphics mode, it
does work with standard 25x80 text screen and after pressing 'q' exits
correctly. Tested with both 8-STABLE and 9-CURRENT under i386 and amd64
architectures.
I tried to run pwcview remotely over ssh (from X), but all I got is
Webcam set to: 320x240 (sif) at 5 fps
Failed to create yuvoverlay: Can't use YUV data on non 16/24/32 bit surfaces
uninitializing
As written in first mail, if someone could help me to understand these issues
or knows something I can use remotely instead of pwcview, I would like to
test it.
Regards,
Milan
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