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dgcksanders  
#1 Posted : Wednesday, August 12, 2020 3:14:38 PM(UTC)
dgcksanders

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Location: Fruitland, NM

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vMix HD 23.0.0.60 x64

System:
Dell OptiPlex 7070 MT CTO
AMD Radeon™ RX 550, 4GB, FH (DP/mDP/mDP)
M.2 512GB PCIe NVMe Class 35 Solid State Drive
16GB 1x16GB 2666MHz DDR4 Memory
Intel Core i9-9900 (8 Cores/16MB/16T/up to 5.0GHz/65W)
Windows 10 Pro, 64bit English
Camera: Canon XA11
Video capture: AJA U-TAP HDMI

Typically we have a weekly FB Live run from the above system. Each week the camera freezes multiple times. We usually have fewer than 20 inputs.
Today I have stripped everything back to 2 inputs (camera + blank) and still get the freeze every 15-30 minutes. This is without recording or livestreaming, just camera input in Output.
Even tried unplugging 2nd monitor, no audio with camera. Trying to reduce to bare minimum.
Even tried to use USB on front vs back with no change.
I unchecked/unticked "High Performance Input Mode" which I had checked for some time but again no change.

Now, I am using same equipment (Cannon XA11 + AJA U-TAP) on Lenovo laptop with GeForce MX230. So far it has been running for over 1 hour with no freeze.
We used to use this laptop for FB live but I don't use now because it doesn't have enough power to livestream and record concurrently.

At this point I think it may be the "AMD Radeon™ RX 550, 4GB, FH (DP/mDP/mDP)" at fault. Anyone willing to confirm this may be the likely culprit?

If I must replace this card with a NVIDIA card what would you recommend?

- We only use one camera (may add a second at some point).
- We FB live and record at the same time. Run dual monitors.
- Fewer than 25 inputs thus far.

Would like to stay under $200 if possible.
DWAM  
#2 Posted : Wednesday, August 12, 2020 4:13:35 PM(UTC)
DWAM

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I'd say it is more likely a USB chip problem with the U-Tap

Test with another USB dongle or buy a real PCI Capture card
SportsNetUSA.net  
#3 Posted : Thursday, August 13, 2020 3:16:16 AM(UTC)
SportsNetUSA.net

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Originally Posted by: dgcksanders Go to Quoted Post

At this point I think it may be the "AMD Radeon™ RX 550, 4GB, FH (DP/mDP/mDP)" at fault. Anyone willing to confirm this may be the likely culprit?

If I must replace this card with a NVIDIA card what would you recommend?



As you know, AMD Radeon cards are not recommended for vMix. The Opal Reference System uses a NVIDIA GeForce GTX 1660 which is just north of $200.
https://www.vmix.com/products/vm...erence-systems.aspx#opal

Have you checked your Power settings? Are you running the OptiPlex as High Performance?

Under Power Options / Advanced Setting / USB Settings see if USB selective suspend setting is set to Enabled or Disabled?
thanks 1 user thanked SportsNetUSA.net for this useful post.
dgcksanders on 8/15/2020(UTC)
dgcksanders  
#4 Posted : Saturday, August 15, 2020 5:38:13 AM(UTC)
dgcksanders

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Location: Fruitland, NM

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Update:
- I really believed the Dell OptiPlex to be the culprit seeing that I could use the same camera and capture card (AJA U-TAP) with my Lenovo laptop without the issue.
- After reading the post from SportsNetUSA.net I changed the Power settings as recommended.
- I noticed that the OptiPlex was not set for HIGH PERFORMANCE so I changed it and set the "USB Selective Suspend" setting to DISABLE (it was enabled).
- I ran the same test and it still froze UNTIL I rebooted the system.
- After a REBOOT I was able to run without seeing it freeze (I ran it for about an hour). Previously, it would rarely go 15-30 minutes without freezing.
- The following day I powered up again and ran the same test. NO FREEZE (ran for our 40 minutes).

BOTTOM LINE: It seems the problem was with the HIGH PERFORMANCE power setting and more likely the "USB Selective Suspend" setting needing to be DISABLED.

Thanks SportsNetUSA.net
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