HP SVA V2.0 Visualization System Software Reference Guide

svacontrolframelock(8)
NAME
svacontrolframelock -- Enables framelock on a set of nodes.
Synopsis
svacontrolframelock [--polarity pol ] [--interval int ] [--delay delay ] [--house
] [ ] {display...}
svacontrolframelock [--disable ] {display...}
svacontrolframelock [ --help ]
Parameters
--disable Disables framelock on the displays listed. The list of displays should
correspond to a frame lock group, that is, the same list that was used in
a previous invocation of this command. The default action is to enable
framelock.
--polarity pol pol specifies the synchronization polarity to be used.
--interval int int specifies the synchronization interval to be used.
--delay delay delay specifies the synchronization delay to be used.
--house A house sync signal will be used. By default, a house sync signal is not
be used.
--help Show the help message.
display… The names of the displays to be included in the framelock group. These
take the form of standard X11 displays: host:display.screen. The
first display is the master; the others are the slaves.
Returns
0 on success; nonzero on failure. If the frame lock group cannot be enabled (or disabled) then
error messages indicating the failure are displayed.
Description
This command lets you enable or disable hardware framelock and choose a master node at any
time for a group of specified nodes. It is particularly helpful when used in the context of an SVA
job.
Refer to the NVIDIA G-Sync documentation to understand synchronization polarity, interval,
and delay. Only the display names are required.
The SVA scripts have a --framelock option that lets you control framelock for a specific job.
If you write or modify job launch scripts, there is also an SVA scripting function called
svaEnableFrameLock (found in svainit) to enable framelock on a Display Surface. See the
SVA Visualization System Software Reference Guide for more information.
Examples
To turn on framelock for nodes n1, n2, and n3:
% svacontrolframelock n1:0 n2:0 n3:0
To turn off framelock for nodes n1, n2, and n3:
% svacontrolframelock --disable n1:0 n2:0 n3:0
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