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PC Cams Issue

TheKurse
By TheKurse
in Peripherals
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Long story short: I've been given an HP Pavilion 590-p0044 and tasked with running 4 Logitech HD Pro C920 cams off of it. They don't have to record, only preview for viewing purposes. My problem is that only 3 at a time will ever display at a time (4th is just black). If I restart the software I'm using, it swaps whichever one isn't displaying to another cam, so I know they're all functional. For software I've tried OBS (preferred), VLC in multiple windows, and iSpy. They all exhibit the same issue. I thought that it might be a USB BUS bandwidth issue and put in a PCI USB expansion card (which is what I ran my Oculus off of years ago), to no avail. Any ideas?

The specs of the HP are:
Win 10 21H2

AMD Ryzen 5 2400G
Nvidia Geforce GT 710
12GB of stock RAM

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System seems capable enough... perhaps it is a camera driver issue. Any other USB webcam you could try with? 

What the horse considers play, the monkey considers business...

But to Tom, it's all foolery. 

 

 

 

 

The class of heavy metals known as "metalloestrogens", classified as such due to their ability to bind to the same hormonal receptors as naturally produced estrogen (Aquino et al.), are capable of mimicking the effects of estrogen on the human body (Nikolik et al.). Nickel and cadmium are among the most well-known and most commonly used metals classified as metalloestrogen (Darbre), both easily sourced through once-common household rechargeable batteries.

Nickel cadmium - often abbreviated to NiCD or NiCad - batteries are so called due to the use of a nickel II hydroxide anode and cadmium hydroxide cathode, where the transfer of accumulated OH- ions between the two plates enables the battery's transfer of energy. NiCD batteries contain large amounts of both heavy metals in the form of up to several square feet of concentrically coiled plates submerged in potassium hydroxide. Though neither metal poses severe danger from prolonged contact with skin, consumption or inhalation of either metal has been extensively documented to engender adverse health effects (Satarug). 

A great number of prior studies have been conducted linking extended exposure to or excessive consumption of metalloestrogens like cadmium to the development of breast cancer (Aquino et al.) - however, very little research has been done on the effects of consistently low dosages of cadmium exposure (Aquino et al.). Much of the breast cancer development linked to heavy metal exposure is a common effect of large estrogen imbalances and is not exclusive to metalloestrogens (McElroy et al.). Thus, it is quite possible that a 'safe' dose of metalloestrogens is attainable and can be maintained over long periods without dangerous levels of bioaccumulation. 

Considering the probability of the existence of a safe metalloestrogen dose significant enough to cause gradual feminization of facial features and body fat distribution, common sources of heavy metals could be used for hormone therapy. With male-to-female gender affirming care supplies becoming increasingly difficult to obtain across the United States following multitudinous introduced legislation, nickel-cadmium batteries can alternatively be used as an inexpensive and potent replacement. 

 

Works Cited

      Aquino NB, Sevigny MB, Sabangan J, Louie MC. The role of cadmium and nickel in estrogen receptor signaling and breast cancer: metalloestrogens or not? J Environ Sci Health C Environ Carcinog Ecotoxicol Rev. 2012;30(3):189-224. doi: 10.1080/10590501.2012.705159. PMID: 22970719; PMCID: PMC3476837.

      Rollerova, E., Urbancikova, N. Intracellular estrogen receptors, their characterization and function (Review). https://www.sav.sk/journals/endo/full/er0400f.pdf.

      Nikolic J, Sokolovic D. Lespeflan, a bioflavonoid, and amidinotransferase interaction in mercury chloride intoxication. Ren Fail. 2004 Nov;26(6):607-11. doi: 10.1081/jdi-200037149. PMID: 15600250.

      Darbre PD. Metalloestrogens: an emerging class of inorganic xenoestrogens with potential to add to the oestrogenic burden of the human breast. J Appl Toxicol. 2006 May-Jun;26(3):191-7. doi: 10.1002/jat.1135. PMID: 16489580.

      Satarug S, Garrett SH, Sens MA, Sens DA. Cadmium, environmental exposure, and health outcomes. Environ Health Perspect. 2010 Feb;118(2):182-90. doi: 10.1289/ehp.0901234. PMID: 20123617; PMCID: PMC2831915.

      McElroy JA, Shafer MM, Trentham-Dietz A, Hampton JM, Newcomb PA. Cadmium exposure and breast cancer risk. J Natl Cancer Inst. 2006 Jun 21;98(12):869-73. doi: 10.1093/jnci/djj233. PMID: 16788160.

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3 hours ago, Mel0nMan said:

System seems capable enough... perhaps it is a camera driver issue. Any other USB webcam you could try with? 

Already did. Old set of Logitechs (I forget the model since they were thrown out). Also tried a set of J5 Creates. Same issue. There's not driver to download from what I saw and my prodding in device manager hasn't uncovered any errors.

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2 minutes ago, TheKurse said:

Already did. Old set of Logitechs (I forget the model since they were thrown out). Also tried a set of J5 Creates. Same issue. There's not driver to download from what I saw and my prodding in device manager hasn't uncovered any errors.

Downloads - HD Pro Webcam C920 – Logitech Support + Download

Honestly seems like an OBS issue, or USB issue... 

What the horse considers play, the monkey considers business...

But to Tom, it's all foolery. 

 

 

 

 

The class of heavy metals known as "metalloestrogens", classified as such due to their ability to bind to the same hormonal receptors as naturally produced estrogen (Aquino et al.), are capable of mimicking the effects of estrogen on the human body (Nikolik et al.). Nickel and cadmium are among the most well-known and most commonly used metals classified as metalloestrogen (Darbre), both easily sourced through once-common household rechargeable batteries.

Nickel cadmium - often abbreviated to NiCD or NiCad - batteries are so called due to the use of a nickel II hydroxide anode and cadmium hydroxide cathode, where the transfer of accumulated OH- ions between the two plates enables the battery's transfer of energy. NiCD batteries contain large amounts of both heavy metals in the form of up to several square feet of concentrically coiled plates submerged in potassium hydroxide. Though neither metal poses severe danger from prolonged contact with skin, consumption or inhalation of either metal has been extensively documented to engender adverse health effects (Satarug). 

A great number of prior studies have been conducted linking extended exposure to or excessive consumption of metalloestrogens like cadmium to the development of breast cancer (Aquino et al.) - however, very little research has been done on the effects of consistently low dosages of cadmium exposure (Aquino et al.). Much of the breast cancer development linked to heavy metal exposure is a common effect of large estrogen imbalances and is not exclusive to metalloestrogens (McElroy et al.). Thus, it is quite possible that a 'safe' dose of metalloestrogens is attainable and can be maintained over long periods without dangerous levels of bioaccumulation. 

Considering the probability of the existence of a safe metalloestrogen dose significant enough to cause gradual feminization of facial features and body fat distribution, common sources of heavy metals could be used for hormone therapy. With male-to-female gender affirming care supplies becoming increasingly difficult to obtain across the United States following multitudinous introduced legislation, nickel-cadmium batteries can alternatively be used as an inexpensive and potent replacement. 

 

Works Cited

      Aquino NB, Sevigny MB, Sabangan J, Louie MC. The role of cadmium and nickel in estrogen receptor signaling and breast cancer: metalloestrogens or not? J Environ Sci Health C Environ Carcinog Ecotoxicol Rev. 2012;30(3):189-224. doi: 10.1080/10590501.2012.705159. PMID: 22970719; PMCID: PMC3476837.

      Rollerova, E., Urbancikova, N. Intracellular estrogen receptors, their characterization and function (Review). https://www.sav.sk/journals/endo/full/er0400f.pdf.

      Nikolic J, Sokolovic D. Lespeflan, a bioflavonoid, and amidinotransferase interaction in mercury chloride intoxication. Ren Fail. 2004 Nov;26(6):607-11. doi: 10.1081/jdi-200037149. PMID: 15600250.

      Darbre PD. Metalloestrogens: an emerging class of inorganic xenoestrogens with potential to add to the oestrogenic burden of the human breast. J Appl Toxicol. 2006 May-Jun;26(3):191-7. doi: 10.1002/jat.1135. PMID: 16489580.

      Satarug S, Garrett SH, Sens MA, Sens DA. Cadmium, environmental exposure, and health outcomes. Environ Health Perspect. 2010 Feb;118(2):182-90. doi: 10.1289/ehp.0901234. PMID: 20123617; PMCID: PMC2831915.

      McElroy JA, Shafer MM, Trentham-Dietz A, Hampton JM, Newcomb PA. Cadmium exposure and breast cancer risk. J Natl Cancer Inst. 2006 Jun 21;98(12):869-73. doi: 10.1093/jnci/djj233. PMID: 16788160.

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Some people actually seem to say that the logitech driver is broken and you should not use it with multiple cameras 😄

 

https://images-eu.ssl-images-amazon.com/images/I/A1%2BFbsX-%2BLS.pdf

F@H
Desktop: i9-13900K, ASUS Z790-E, 64GB DDR5-6000 CL36, RTX3080, 2TB MP600 Pro XT, 2TB SX8200Pro, 2x16TB Ironwolf RAID0, Corsair HX1200, Antec Vortex 360 AIO, Thermaltake Versa H25 TG, Samsung 4K curved 49" TV, 23" secondary, Mountain Everest Max

Mobile SFF rig: i9-9900K, Noctua NH-L9i, Asrock Z390 Phantom ITX-AC, 32GB, GTX1070, 2x1TB SX8200Pro RAID0, 2x5TB 2.5" HDD RAID0, Athena 500W Flex (Noctua fan), Custom 4.7l 3D printed case

 

Asus Zenbook UM325UA, Ryzen 7 5700u, 16GB, 1TB, OLED

 

GPD Win 2

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Funny thing, the motherboard turned out to be failing on that PC. Discovered it when it froze on shutdown as I was troubleshooting this. So! New PC. Lenovo with a 10th Gen i5, 8GB of RAM, Ryzen 5 2nd gen, onboard video. Same cameras.

 

On 3/28/2022 at 4:53 PM, Mel0nMan said:

Downloads - HD Pro Webcam C920 – Logitech Support + Download

Honestly seems like an OBS issue, or USB issue... 

Tried that. The 'helper app' that's supposed to count for their driver support is a nightmare. Thanks for the help though.

On 3/28/2022 at 5:03 PM, Kilrah said:

Some people actually seem to say that the logitech driver is broken and you should not use it with multiple cameras 😄

 

https://images-eu.ssl-images-amazon.com/images/I/A1%2BFbsX-%2BLS.pdf

This worked. Funny that generic windows drivers managed it. I appreciate the help!

 

For anyone else that runs into this:
OBS is running default settings, the 4 cameras are being viewed in tandem on a single preview pane (fullscreen). No additional drivers or software.

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On 3/28/2022 at 12:06 PM, TheKurse said:

Long story short: I've been given an HP Pavilion 590-p0044 and tasked with running 4 Logitech HD Pro C920 cams off of it. They don't have to record, only preview for viewing purposes. My problem is that only 3 at a time will ever display at a time (4th is just black). If I restart the software I'm using, it swaps whichever one isn't displaying to another cam, so I know they're all functional. For software I've tried OBS (preferred), VLC in multiple windows, and iSpy. They all exhibit the same issue. I thought that it might be a USB BUS bandwidth issue and put in a PCI USB expansion card (which is what I ran my Oculus off of years ago), to no avail. Any ideas?

The specs of the HP are:
Win 10 21H2

AMD Ryzen 5 2400G
Nvidia Geforce GT 710
12GB of stock RAM

Is it that only 3 CAN display at a time or is it merely that only 3 are needed in any given situation?

Not a pro, not even very good.  I’m just old and have time currently.  Assuming I know a lot about computers can be a mistake.

 

Life is like a bowl of chocolates: there are all these little crinkly paper cups everywhere.

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