Hi,
We build display walls and use Quadro Sync II cards to synchronize output to 12 displays. We have built a few of these but have problems when enabling display synchronization through the Control Panel or QSyncUtility. The OS freezes and becomes entirely unresponsive. The graphics driver never recovers and we have to hard reboot the PC. There are no applications running when enabling sync.
The PC specs are,
- Dell Precision 7960 Tower running Windows 11
- Intel Xeon w5-3435X, 3GHz, 16 cores
- 3x RTX A4000’s connected to a single Quadro Sync II card. All GPUs are seated in x16 wired 4.0 PCI-E slots.
- 32Gb of RAM
- 1 TB NVMe SSD
From the GPU to each display we run: Display Port to HDMI adapter → HDMI EDID Dongle (identical for all displays) → HDMI cable (sometimes HDMI over ethernet).
In most cases we have managed to resolve the problem though it usually takes a lot of debugging/trial and error as the same fix may not work for a different PC with the exact same hardware. The steps we usually take are,
- Set windows power options to Highest Performance.
- Set power management to Prefer Highest Performance in the NVIDIA control panel.
- Clean re-install of display drivers. We tested both R535 and R550 driver branches (reverting from an R550 driver to 538.15 resolved the issue on one system).
- Update Quadro Sync II firmware (tested 2.02 and 2.21).
- In BIOS and Windows disable PCI-E Active State Power Management (fixed the issue on one system).
- In BIOS manually set the default GPU to PCI-E slot 1, instead of Automatic (fixed the issue on one system).
Here are both the NVIDIA system information and the general system information,
NVIDIA System Information 01-13-2025 18-42-30.txt (5.9 KB)
SystemInformation.txt (652.0 KB)
Any advice on what might be the root cause of this issue and what could be done to fix it consistently would be greatly appreciated.
Regards,
Michael