Nvidia 2 manual Leveraging Frame Lock Genlock in OpenGL, Frame Lock Restrictions

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NVIDIA Quadro G-Sync II User Guide

Leveraging Frame Lock/

Genlock in OpenGL

With the GLX_NV_swap_group extension, OpenGL applications can be implemented to join a group of applications within a system for local swap sync, and bind the group to a barrier for swap sync across a frame lock group. A universal frame counter is also provided to promote synchronization between systems.

Frame Lock Restrictions

The following restrictions apply when enabling frame lock:

All frame lock display devices that are connected to the same Quadro must have the same display-mode timings.

All display devices set as the frame lock client must have the same refresh rate as the frame lock server (master) display device. If a House Sync signal is used (instead of internal timings), all client display devices must have the same refresh rate as the incoming house sync signal.

All X Screens (driving the selected client/server display devices) must have the same stereo setting. Refer to the Linux README.TXT ﬁle for instructions on how to set the stereo X option.

The frame lock server (master) display device must be on a Quadro on the primary connector to the Quadro G-Sync II option card.

If connecting a single Quadro to a Quadro G-Sync II option card, the primary connector must be used.

In conﬁgurations with more than one display device per Quadro,

we recommend enabling frame lock on all display devices on those Quadros.

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Contents 176-0002-000 Page Page Nvidia Quadro G-Sync Page Table of Contents References and Resources About This Guide Introduction to Nvidia Quadro G-SyncNvidia Quadro G-Sync II User Guide Implementing SLI Technology System RequirementsUnpacking Nvidia Frame SynchronizationTwo 2 Ribbon Cables Nvidia Quadro G-Sync II EquipmentSafety Instructions Installing Nvidia Quadro G-Sync II Card Quadro G-Sync Nvidia Frame Synchronization Under Windows XP Set Up the Hardware How To Set Up GenlockVID IA Q uadro G-Sync Onnector Bracket Sync Source Server Basic Genlock Setup Set Up the SoftwareClick OK to save the settings Detecting the House Sync SignalUnder The synchronization pulses are based on, click Using the House Sync SignalOu tgo in g Sync trigg ered from lead in g and falling ed ge Viewing the Connection Status How To Set Up Frame LockRestoring an Unstable Display Er ver Click Apply Set Up the Server SoftwareBasic Server Setup Click Edit Settings to open the Server Settings dialog box Changing the Timing Signal FrequencyBasic Client Setup Set Up the Client SoftwareYn c D elay Skew Introducing a Timing Delay at Client SystemsSwap Sync Setup Setting Up Genlock + Frame Lock Checking the Connection Status Swap Sync Nvidia Quadro G-Sync II User Guide Nvidia Frame Synchronization Under Linux Using the nvidia-settings Utility Nvidia Q uadro G-Sync Connector Bracket Syn c Sou rce An X Server is typically speciﬁed in the format systemm Go to the nvidia-settingsframe lock panelSynchronizing to the External House Signal Ou tgo in g Sync trigg ered from lead in g and falling ed ge Understanding the Status Indicators Sync and Connection Status for the Genlock Server Four frame locked systems An X Server is typically speciﬁed in the format systemm Test the Connections Sync and Connection Status for the Server Check the Use House Sync if Present check box Frame Lock Restrictions Leveraging Frame Lock Genlock in OpenGL‰ Frame Lock + SLI SFR, AFR, or Sliaa Two Quadros, Single Supported Frame Lock ConﬁgurationsSample Conﬁgurations General StepsCheck that the refresh rate is the one we want Make sure frame lock sync is disabledQuery the enabled displays on the Quadro Genlock ExampleToggle the test signal Enable use of the house sync signalConﬁgure the house sync signal video mode Enable framelocking‰ First display from system Disable frame lockFrame Lock Example Check the refresh rate is the same for all displays Query the enabled displays on the QuadrosDisable the house sync signal on the master device Enable frame lock on serverMake sure frame lock is disabled for all Quadros Enable frame lock on slave devicesVerify that the refresh rate is the same for all displays Writing a Frame Lock Client for NV-CONTROL 1.8 and earlier Enable frame lock on the slave devicesWriting a Frame Lock NV-CONTROL Client Node Most likely, you want Are using a house sync. Most likely, you wantFramelocksyncdisable on each X screen to disable frame lock Writing a Frame Lock Client for NV-CONTROL 1.9 and later Quadro G-Sync II device Most likely, you want Querying the Frame Lock Capabilities of a SystemConﬁguring the Frame Lock Group Query the number of Quadro G-Sync II devices onEnabling/Disabling Frame Lock Using a house sync. Most likely, you wantEnable frame lock on each Quadro by setting Nvctrlframelock Nvidia Quadro G-Sync II User Guide Using the OpenGL Extensions Key Points and Deﬁnitions Frame Synchronization Using the OpenGL ExtensionsAbout Buffer Swaps Window Buffer Swaps Buffer Swap CriteriaConﬁguring Swap Groups Conﬁguring for Swap SyncFrame Counter ‰ To bind a group to a barrier, call OpenGL ExtensionsConﬁguring Swap Barriers This call binds a swap group to a barrier WglJoinSwapGroupNV, glxJoinSwapGroupNVWglBindSwapBarrierNV GlxBindSwapBarrierNV WglQueryMaxSwapGroupsNV GlxQueryMaxSwapGroupsNV WglQuerySwapGroupNV GlxQuerySwapGroupNVWglQueryFrameCountNV,glxQueryFrameCount WglResetFrameCountNV,glxResetFrameCountGetting Driver Updates Nvidia Quadro G-Sync II User Guide Registering Your Quadro Sync Registration, Support WarrantyWarranty and Support Compliance and Certiﬁcations Copyright