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Corp. Computer Hardware User Manual

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Set NV_CTRL_FRAMELOCK_SYNC_INTERVAL as appropriate if you are
using a house sync.
Most likely, you want 0.
Enabling/Disabling Frame Lock
Enable frame lock on each Quadro by setting NV_CTRL_FRAMELOCK_
SYNC to NV_CTRL_FRAMELOCK_SYNC_ENABLE.
(Optional) Set
NV_CTRL_FRAMELOCK_TEST_SIGNAL to NV_CTRL_
FRAMELOCK_TEST_SIGNAL_ENABLE followed immediately by
NV_CTRL_FRAMELOCK_TEST_SIGNAL_DISABLE (on the Quadro that
contains the master frame lock display).
This guarantees accuracy of the Universal Frame Count (as returned
by glXQueryFrameCountNV()).
When you are done, set
NV_CTRL_FRAMELOCK_SYNC to NV_CTRL_
FRAMELOCK_SYNC_DISABLE on each Quadro to disable frame lock.
During operation you can also query any of these on each Quadro or
frame lock device:
NV_CTRL_FRAMELOCK_PORT0_STATUS
NV_CTRL_FRAMELOCK_PORT1_STATUS
NV_CTRL_FRAMELOCK_HOUSE_STATUS
NV_CTRL_FRAMELOCK_SYNC_READY
NV_CTRL_FRAMELOCK_STEREO_SYNC
NV_CTRL_FRAMELOCK_ETHERNET_DETECTED
NV_CTRL_FRAMELOCK_SYNC_RATE
NV_CTRL_FRAMELOCK_TIMING
6.
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3.
NVIDIA Frame Synchronization Under Linux