How to stop continous crashing on start due to crash report itself ?

chrisdel

@DusX : Ok, thanks for the advices !
In fact I had 2 problems : stability of Isadora and the stability of isadora in combination with using the black magic intensity video capture.

So let's say that we can fix isadora V2.2 and above to be stable on windows 10, what would be the video capture card you recommand to use then ?

chrisdel

@DusX : Ok, thanks for the advices !
In fact I had 2 problems : stability of Isadora and the stability of isadora in combination with using the black magic intensity video capture.

So let's say that we can fix isadora V2.2 and above to be stable on windows 10, what would be the video capture card you recommand to use then ?

DusX

Black magic is likely the fastest choice. ( natice driver support) However these can be very picky about the hardware supported, and in the case of the usb 3 versions only work with a small number of usb3 host controllers. Others may work but poorly. I have used these with Isadora and windows to great effect previously but have also returned product after testing and finding that it was impossible to us BM intensity with my computer at the time.

Victreux

Hello,

@Dusx , Please could you tell how you disable optimus ?

Thank you :)

Victor

DusX

@Victreux

If your system has optimus, generally in the nVidia control panel, there is a 3D tab which has a section that allows you to define how 3D is managed for different applications.

You need to add Isadora.exe to this list and set it to ONLY use the Dedicated video card (nVidia).

This will set Isadora to ignore any onboard Intel video.

On some machines (not very common) it is possible to disable Optimus in the Bios.

Sorry, I can't provide any further instruction for this option.

Victreux

@Dusx

Thank you for your answer.

I have built a computer _ Win 10 _ for a project with two Nvidia GTX 950 pluged to the motherboard ( I need 5 output ).

Do you think i will have a better stability if i disable the GPU calculation for one of them ( If i configure : "CUDA _graphic processor Geforce GTX 950 (1 on 2) " for Isadora.

I also think to go back to win 7 for better stability. What is you opinion about it .

Thank to tell me if you have any suggestions.

Best,

Victor

Victreux

@Dusx

Thank you for your answer.

I have built a computer _ Win 10 _ for a project with two Nvidia GTX 950 pluged to the motherboard ( I need 5 output ).

Do you think i will have a better stability if i disable the GPU calculation for one of them ( If i configure : "CUDA _graphic processor Geforce GTX 950 (1 on 2) " for Isadora.

I also think to go back to win 7 for better stability. What is you opinion about it .

Thank to tell me if you have any suggestions.

Best,

Victor

Fred

@chrisdel The blackmagic capture cards are picky, but not unreliable. The cards require a full speed USB3 connection, many cheaper and or older motherboards use a lower quality USB3.0 chip that does not actually support full speed throughput. This is not a problem with blackmagic, windows or any Isadora release, but rather the hardware manufacturer of the motherboard or USB3 chip (or writing the drivers) cutting corners. A full list of compatability for the hardware can be found on the blackmagic site. You need to go to https://www.blackmagicdesign.com/support and then select capture and playback devices and then in the centre column in below are support notes, then go to the heading USB 3.0 System Requirements. Again, the actual spec of USB3.0 allows for enough bandwidth for uncompressed HD video ingestion, but many systems cannot meet the full spec, but will work for most uses, like better hard drive access speeds, or using other lower bandwidth USB3.0 devices. It is always worth checking out details of hardware requirements when buying anything other than a mouse or USB stick to make sure it will work well with your system. Overall if I were you I would move directly to windows 10 and Isadora 2.5 and go with the blackmagic capture card if your hardware is capable. Both Isadora 2.5 and Win 10 are lightyears ahead for stability and performance, just check you have the right hardware, GPU processing is another world and new tools that have appeared in later versions are super useful.

@[Victreux](http://troikatronix.com/troikatronixforum/profile/367/Victreux) Isadora does not use CUDA and has difficulty using 2 gfx cards (as do pretty much all live softwares, even things like SLI, generally half the speed of the system but add power) . CUDA is much better at distributed calculation, like a render that does not require real time processes. 2 GFX cards will give you more outputs, but will be hard to manage. A better way is to use a more powerful card and something like a matrox or datapath to get the extra outputs, or of course a card like the firepro w9100 that has the outputs already.

DusX

I agree with Fred in regards to windows 10.

His suggested config is likely the best option. I prefer to use a single video card since the 'shared opengl resources' feature is VERY convenient, and isn't available with multiple video cards.

That said, with this feature turned off, multiple cards should be possible.

Victreux

Hello,

Thank you for help.

I confirm, not very stable with 2 gpu (all the output work but slowdown and frames problemes... crash etc ...) even with the option to use only one gpu for processing .

I left only one card with 7000 pixels and a triple head DP . It work great with a blackmagic duo ( 120 ms latency with a sdi cam 720P50 ) and all the movie in photojpeg.

The last beta work much better for me than the 2.2.2 with win 10 _ last production with window was hard_

Good job. Thank you. Feel safe for the next three weeks i have to work.

Victor