DR14 lag on CentOS when duplicating clips

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Abdelrahman Magdy

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DR14 lag on CentOS when duplicating clips

PostMon Sep 11, 2017 9:02 am

I have noticed a strange issue while using Resolve on CentOS. First, check this screencast to understand what is happening.



As you can see, when I try duplicating an audio clip (using Alt and drag) when 'Show Audio Waveforms' is checked in the Timeline View Options, there is a lag that happens until Resolve reloads the waveform on the original clip and the duplicate. With 'Show Audio Waveform' turned off, it either works fine, or just lags for milliseconds.

This seems to be a CentOS only issue, as I have tried it with Resolve on Windows using the same machine, and that doesn't happen.

I have a feeling it is a GPU issue, although I don't quite understand why the same GPU would be working fine on Windows 7, but not on CentOS.

The reason I think it is a GPU issue is, when I install Resolve and it gets to the point of checking my hardware, on Windows, it says that everything is ok, while on CentOS, it shows a warning (yellow triangle with an exclamation mark) on the GPU. I am not sure why that happens, but Resolve can see the GPU and the NVIDIA drivers are installed.

Any idea why that might be happening?


System specs:
Resolve version: 14.0.0.078
OS: dual-boot (Windows 7 & CentOS 7)
CPU: Intel i7-4790k 4GHz Quad-Core
RAM: 32GB
GPU: NVIDIA GeForce 770 2GB
Last edited by Abdelrahman Magdy on Tue Sep 12, 2017 10:22 am, edited 2 times in total.
System specs:
Resolve Studio version: 16.1.0.055
Fusion Studio version: 9.0.2
OS: CentOS 7
CPU: Intel i7-4790k 4GHz Quad-Core
RAM: 32GB
GPU: NVIDIA GeForce 1080 Ti 11GB
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Peter Chamberlain

Blackmagic Design

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Re: DR14 lag on CentOS when duplicating clips

PostMon Sep 11, 2017 3:31 pm

Hi, please review
viewtopic.php?f=21&t=54509
DaVinci Resolve Product Manager
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Abdelrahman Magdy

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Re: DR14 lag on CentOS when duplicating clips

PostMon Sep 11, 2017 6:47 pm

Peter Chamberlain wrote:Hi, please review
viewtopic.php?f=21&t=54509


The post has been updated with all the needed system details.
System specs:
Resolve Studio version: 16.1.0.055
Fusion Studio version: 9.0.2
OS: CentOS 7
CPU: Intel i7-4790k 4GHz Quad-Core
RAM: 32GB
GPU: NVIDIA GeForce 1080 Ti 11GB
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Dwaine Maggart

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Re: DR14 lag on CentOS when duplicating clips

PostTue Sep 12, 2017 2:26 am

There doesn't seem to be a video at your posted link. Has it been obfuscated somehow?

The post Peter pointed to also mentions providing logs, and that would be helpful in this scenario.
Dwaine Maggart
Blackmagic Design DaVinci Support
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Abdelrahman Magdy

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Re: DR14 lag on CentOS when duplicating clips

PostTue Sep 12, 2017 10:23 am

Dwaine Maggart wrote:There doesn't seem to be a video at your posted link. Has it been obfuscated somehow?

The post Peter pointed to also mentions providing logs, and that would be helpful in this scenario.

Fixed the link issue.

I thought you only need the logs for when Resolve crashes. No problem, though. As soon as I go back home, I will upload the logs.
System specs:
Resolve Studio version: 16.1.0.055
Fusion Studio version: 9.0.2
OS: CentOS 7
CPU: Intel i7-4790k 4GHz Quad-Core
RAM: 32GB
GPU: NVIDIA GeForce 1080 Ti 11GB
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Abdelrahman Magdy

  • Posts: 291
  • Joined: Fri Jan 23, 2015 10:08 pm

Re: DR14 lag on CentOS when duplicating clips

PostTue Sep 12, 2017 7:11 pm

Hi Dwaine and Peter. Here is a link to download the logs you requested.

https://we.tl/XhTKJj3Rv8

Hope this helps.

Thank you.
System specs:
Resolve Studio version: 16.1.0.055
Fusion Studio version: 9.0.2
OS: CentOS 7
CPU: Intel i7-4790k 4GHz Quad-Core
RAM: 32GB
GPU: NVIDIA GeForce 1080 Ti 11GB
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Abdelrahman Magdy

  • Posts: 291
  • Joined: Fri Jan 23, 2015 10:08 pm

Re: DR14 lag on CentOS when duplicating clips

PostThu Sep 14, 2017 12:35 am

Any ideas on this??
System specs:
Resolve Studio version: 16.1.0.055
Fusion Studio version: 9.0.2
OS: CentOS 7
CPU: Intel i7-4790k 4GHz Quad-Core
RAM: 32GB
GPU: NVIDIA GeForce 1080 Ti 11GB
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Dwaine Maggart

Blackmagic Design

  • Posts: 11251
  • Joined: Wed Aug 22, 2012 2:53 pm

Re: DR14 lag on CentOS when duplicating clips

PostThu Sep 14, 2017 3:15 am

It's being investigated.
Dwaine Maggart
Blackmagic Design DaVinci Support
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Abdelrahman Magdy

  • Posts: 291
  • Joined: Fri Jan 23, 2015 10:08 pm

Re: DR14 lag on CentOS when duplicating clips

PostThu Sep 14, 2017 8:52 am

Perfect.. thank you very much, Dwaine

Sent from my SM-G920F using Tapatalk
System specs:
Resolve Studio version: 16.1.0.055
Fusion Studio version: 9.0.2
OS: CentOS 7
CPU: Intel i7-4790k 4GHz Quad-Core
RAM: 32GB
GPU: NVIDIA GeForce 1080 Ti 11GB
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Abdelrahman Magdy

  • Posts: 291
  • Joined: Fri Jan 23, 2015 10:08 pm

Re: DR14 lag on CentOS when duplicating clips

PostFri Sep 15, 2017 6:31 pm

I have narrowed down this issue a bit more.. It seems to be happening only when I am trying to drag an audio clip (or duplicate it by Alt+dragging) to a new track. Disabling the 'Show Audio Waveforms' option makes it slightly better, but what gets rid of it completely is if I create the audio track before dragging the clip to it.

Hope this helps.
System specs:
Resolve Studio version: 16.1.0.055
Fusion Studio version: 9.0.2
OS: CentOS 7
CPU: Intel i7-4790k 4GHz Quad-Core
RAM: 32GB
GPU: NVIDIA GeForce 1080 Ti 11GB

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