diff options
Diffstat (limited to 'hw/xfree86/drivers/modesetting/modesetting.man')
| -rw-r--r-- | hw/xfree86/drivers/modesetting/modesetting.man | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/hw/xfree86/drivers/modesetting/modesetting.man b/hw/xfree86/drivers/modesetting/modesetting.man index bc294da7c..0145344d2 100644 --- a/hw/xfree86/drivers/modesetting/modesetting.man +++ b/hw/xfree86/drivers/modesetting/modesetting.man @@ -71,6 +71,21 @@ One of \*qglamor\*q or \*qnone\*q. Default: glamor. Enable DRI3 page flipping. The default is .B on. .TP +.BI "Option \*qAsyncFlipSecondaries\*q \*q" boolean \*q +Use async flips for secondary video outputs on multi-display setups. If a screen +has multiple displays attached and DRI3 page flipping is used, then only one of +the displays will have its page flip synchronized to vblank for tear-free +presentation. This is the display that is used for presentation timing and +timestamping, usually the one covering the biggest pixel area of the screen. +All other displays ("Secondaries") will not synchronize their flips. This may +cause some tearing on these displays, but it prevents a permanent or periodic +slowdown or irritating judder of animations if not all video outputs are running +synchronized with each other and with the same refresh rate. There is no perfect +solution apart from perfectly synchronized outputs, but this option may give +preferrable results if the displays in a multi-display setup mirror or clone +each other. The default is +.B off. +.TP .BI "Option \*qZaphodHeads\*q \*q" string \*q Specify the RandR output(s) to use with zaphod mode for a particular driver instance. If you use this option you must use this option for all instances |