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modesetting: Enable TearFree by default 

TearFree support has been available in the modesetting driver for a year
with no issues reported. The code is mature and robust, with error handling
that's been vetted across many hardware configurations.

Notably, TearFree is also the only way to achieve a tear-free desktop with
mismatched displays and transformed CRTCs.

Enable TearFree by default for a smooth desktop experience out of the box.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
This commit is contained in:
Sultan Alsawaf 2023-12-16 11:05:33 -08:00 committed by Matt Turner
parent 6c60571528
commit 0dacee6c51
2 changed files with 2 additions and 2 deletions
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2
hw/xfree86/drivers/modesetting/driver.c
View File

@ -1386,7 +1386,7 @@ PreInit(ScrnInfoPtr pScrn, int flags)
"Atomic modesetting %sabled\n", ms->atomic_modeset ? "en" : "dis"); "Atomic modesetting %sabled\n", ms->atomic_modeset ? "en" : "dis");
/* TearFree requires glamor and, if PageFlip is enabled, universal planes */ /* TearFree requires glamor and, if PageFlip is enabled, universal planes */
if (xf86ReturnOptValBool(ms->drmmode.Options, OPTION_TEARFREE, FALSE)) { if (xf86ReturnOptValBool(ms->drmmode.Options, OPTION_TEARFREE, TRUE)) {
if (pScrn->is_gpu) { if (pScrn->is_gpu) {
xf86DrvMsg(pScrn->scrnIndex, X_WARNING, xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
"TearFree cannot synchronize PRIME; use 'PRIME Synchronization' instead\n"); "TearFree cannot synchronize PRIME; use 'PRIME Synchronization' instead\n");

2
hw/xfree86/drivers/modesetting/modesetting.man
View File

@ -118,7 +118,7 @@ as rotated and scaled CRTCs. When PageFlip is enabled, fullscreen DRI
applications will still have the discretion to not use tearing prevention. applications will still have the discretion to not use tearing prevention.
.br .br
The default is The default is
.B off. .B on.
.TP .TP
.BI "Option \*qAtomic\*q \*q" boolean \*q .BI "Option \*qAtomic\*q \*q" boolean \*q
Enable atomic modesetting when supported. The default is Enable atomic modesetting when supported. The default is