Real time playback issue with GTX 285 & GT 120

[Dwaine Maggart]

Since you can’t provide a Mac Model #, can we assume this is a Hackintosh of some sort?

Dwaine Maggart
Blackmagic Design DaVinci Support

[Spazz Nielsen]

No, but Im not sure what the Model # is. Heres the Hardware overview:

Model Name: Mac Pro
Model Identifier: MacPro4,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 2.66 GHz
Number Of Processors: 1
Total Number Of Cores: 4
L2 Cache (per core): 256 KB
L3 Cache: 8 MB
Memory: 8 GB
Processor Interconnect Speed: 4.8 GT/s
Boot ROM Version: MP41.0081.B07
SMC Version (system): 1.39f5
SMC Version (processor tray): 1.39f5
Serial Number (system): CK9160474PD
Serial Number (processor tray): J59100AZ74MFC
Hardware UUID: 4A1460EC-2C8E-5395-8BD7-1C1308E49AF8

[Dwaine Maggart]

Great, so it’s a 4,1 MacPro. In Resolve, most compressed file encoding/decoding is done on the CPU(s). That includes ProRes. Since you only have 1 CPU, that might impact ProRes decoding speed, but not like what you are reporting, I don’t think.

Since you are in the Mac System Info area, could you please show us what it says in the Graphics/Displays section, and the PCI Cards section?

Dwaine Maggart
Blackmagic Design DaVinci Support

[Spazz Nielsen]

Sure.

Graphics/Displays:

NVIDIA GeForce GT 120:

Chipset Model: NVIDIA GeForce GT 120
Type: GPU
Bus: PCIe
Slot: Slot-2
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0640
Revision ID: 0x00a1
ROM Revision: 3386
Displays:
DELL 2407WFP:
Resolution: 1920 x 1200 @ 60 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Display Serial Number: UY54571C0WMS
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Display Connector:
Status: No Display Connected

NVIDIA GeForce GTX 285:

Chipset Model: NVIDIA GeForce GTX 285
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 2048 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x05e3
Revision ID: 0x00a1
ROM Revision: By MacVidCards
Displays:
Display Connector:
Status: No Display Connected
Display Connector:
Status: No Display Connected

PCI Cards:

NVIDIA GeForce GT 120:

Name: NVDA,Display-B
Type: Display Controller
Driver Installed: Yes
MSI: Yes
Bus: PCI
Slot: Slot-2
Vendor ID: 0x10de
Device ID: 0x0640
Subsystem Vendor ID: 0x106b
Subsystem ID: 0x0010
ROM Revision: 3386
Revision ID: 0x00a1
Link Width: x16
Link Speed: 5.0 GT/s

NVIDIA GeForce GTX 285:

Name: NVDA,Display-B
Type: Display Controller
Driver Installed: Yes
MSI: Yes
Bus: PCI
Slot: Slot-1
Vendor ID: 0x10de
Device ID: 0x05e3
Subsystem Vendor ID: 0x3842
Subsystem ID: 0x0010
ROM Revision: By MacVidCards
Revision ID: 0x00a1
Link Width: x16
Link Speed: 5.0 GT/s

pcibdbd,a11a:

Type: Video
Driver Installed: Yes
MSI: No
Bus: PCI
Slot: Slot-3
Vendor ID: 0xbdbd
Device ID: 0xa11a
Subsystem Vendor ID: 0xbdbd
Subsystem ID: 0xa11a
Revision ID: 0x0000
Link Width: x4
Link Speed: 2.5 GT/s

I have another GT 120 card I can try moving to the machine as well if this will help? Think I’ll need to remove my Decklink card to free up a slot for it though.

[Dwaine Maggart]

That all looks fine. I can’t see any reason why your system is running as poorly as you state. What version of OSX are you using?

Look in your Mac System Preferences, and open the CUDA icon. Tell us what version of CUDA driver is installed, and what version of GPU driver is installed, including the number at the end in parentheses.

Dwaine Maggart
Blackmagic Design DaVinci Support

[Spazz Nielsen]

The machine is running Mac OS X 10.6.8 – Snow Leopard.

Cuda Driver Version: 4.0.19
GPU Driver Version: 1.6.37.0 (256.02.25f01)

[Dwaine Maggart]

That looks good as well. I’m pretty baffled.

My only other thought is that maybe your GTX-285 card is in distress.

You can download the cuda-z test here:

https://sourceforge.net/projects/cuda-z/files/cuda-z/Beta/CUDA-Z-0.6.133-SVN.dmg/download

Running this will tell you if the card is functioning OK. Make sure you select the 285 card and not the 120 card when you run it.

Looks like you got your GTX-285 card from MacVidCards. You might contact Dave and see if he has any thoughts. He will also know the normal cuda-z results for that card.

Dwaine Maggart
Blackmagic Design DaVinci Support

[Rohit Gupta]

“A 2.66 GHZ Quad-Core Intel Xeon with 8 GB 1066 MHz DDR3 ram. I’m grading ProRes 422 files.”

Is it a single Quad, or dual Quad core?

Can you try switching the video monitoring to 8-bit in config page?

[Dennis Kutchera]

Open up the console app and see if there is an error message that repeats continually. I had some crap app from the Apple App store throwing errors because it could not see a disk it wanted, causing everything to slow down to the point where I could not play Prores LT in real time. Once I fixed the problem, things went back to normal. It affected every app and the OS for speed.

Dennis

Dennis Kutchera
EggStudios.ca