Date: Fri, 7 Oct 2022 15:55:01 +0000 From: "Brian McGovern (bmcgover)" <bmcgover@cisco.com> To: "questions@freebsd.org" <questions@freebsd.org> Subject: Web Camera/webcamd/pwcview on Raspberry Pi Message-ID: <BL1PR11MB55097877AB68CD318E6A3066C55F9@BL1PR11MB5509.namprd11.prod.outlook.com>
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All,
Hopefully quick question. I'm looking to set up a WebCAM on a Rasperry Pi=
for a cheap security hack. I checked this out on a VM on two of my [x86] l=
aptops, and the camera worked fine (its a rebranded Logitech). However, on =
the PIs (both a 3 and a 4), using a REMOTE X server for display, pwcview is=
returning a green screen instead of the image.
Google searchs raised a few threads from a couple years back with people =
having a similar issue (some got corrupted imaged periodically), but there =
never seemed to be a resolution either way (e.g. got it working, or just ga=
ve up after awhile), although a few people pointed to "performance" as an i=
ssue. In my case, the Pi was running about 2% utilization. The remote X con=
nection was set up with ssh -Y .....
Before I go pouring hours into trying things and debugging, given that it=
"just worked" on x86, I just wanted to put a feeler out there to see if an=
yone feels this isn't worth chasing.
-Brian
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All,</div>
<div style=3D"color:black;font-size:12pt;font-family:Calibri,Arial,Helvetic=
a,sans-serif" class=3D"ContentPasted0">
Hopefully quick question. I'm looking to set up a WebCAM on a Rasper=
ry Pi for a cheap security hack. I checked this out on a VM on two of my [x=
86] laptops, and the camera worked fine (its a rebranded Logitech). However=
, on the PIs (both a 3 and a 4), using
a REMOTE X server for display, pwcview is returning a green screen instead=
of the image.</div>
<div style=3D"color:black;font-size:12pt;font-family:Calibri,Arial,Helvetic=
a,sans-serif">
<br class=3D"ContentPasted0">
</div>
<div style=3D"color:black;font-size:12pt;font-family:Calibri,Arial,Helvetic=
a,sans-serif" class=3D"ContentPasted0">
Google searchs raised a few threads from a couple years back with pe=
ople having a similar issue (some got corrupted imaged periodically), but t=
here never seemed to be a resolution either way (e.g. got it working, or ju=
st gave up after awhile), although a
few people pointed to "performance" as an issue. In my case, the=
Pi was running about 2% utilization. The remote X connection was set up wi=
th ssh -Y .....</div>
<div style=3D"color:black;font-size:12pt;font-family:Calibri,Arial,Helvetic=
a,sans-serif">
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</div>
<div style=3D"color:black;font-size:12pt;font-family:Calibri,Arial,Helvetic=
a,sans-serif" class=3D"ContentPasted0">
Before I go pouring hours into trying things and debugging, given th=
at it "just worked" on x86, I just wanted to put a feeler out the=
re to see if anyone feels this isn't worth chasing.</div>
<div style=3D"color:black;font-size:12pt;font-family:Calibri,Arial,Helvetic=
a,sans-serif">
<br class=3D"ContentPasted0">
</div>
<span style=3D"color:black;font-size:12pt;font-family:Calibri,Arial,Helveti=
ca,sans-serif" class=3D"ContentPasted0"> -Brian</span></d=
iv>
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