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Don't prepare outputs & crtcs if set_mode_major is present

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A driver with this hook will take care of preparing the outputs & crtcs,
so calling the prepare functions will just cause unnecessary flicker.

Fixes bug #21077
(cherry picked from commit 94648bb797)

Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Jesse Barnes 2009-05-04 15:38:22 -07:00 committed by Keith Packard
parent eac2b3658a
commit fdbb6fd3d3
1 changed files with 8 additions and 3 deletions
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7
hw/xfree86/modes/xf86Crtc.c
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@ -2444,18 +2444,23 @@ _X_EXPORT Bool
xf86SetDesiredModes (ScrnInfoPtr scrn)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
xf86CrtcPtr crtc = config->crtc[0];
int c;
/* A driver with this hook will take care of this */
if (!crtc->funcs->set_mode_major) {
xf86PrepareOutputs(scrn);
xf86PrepareCrtcs(scrn);
}
for (c = 0; c < config->num_crtc; c++)
{
xf86CrtcPtr crtc = config->crtc[c];
xf86OutputPtr output = NULL;
int o;
RRTransformPtr transform;
crtc = config->crtc[c];
/* Skip disabled CRTCs */
if (!crtc->enabled)
continue;