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randr: bug #21554 - re-probe outputs when coming back from laptop unsuspend

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Make xf86 RANDR wrap the EnterVT call chain, so it can re-probe the
outputs when a laptop comes back from suspend/unsuspend (actually, any
time that we enter our VT again).  The X server should then send RR*
events to clients, so they can cope with a monitor that was unplugged
while the laptop was suspended.

Signed-off-by: Federico Mena Quintero <federico@novell.com>
This commit is contained in:
Federico Mena Quintero 2009-05-04 19:24:47 -05:00 committed by Søren Sandmann Pedersen
parent b12010e10f
commit e08c6a0752
1 changed files with 26 additions and 0 deletions
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26
hw/xfree86/modes/xf86RandR12.c
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@ -55,6 +55,13 @@ typedef struct _xf86RandR12Info {
int pointerY;
Rotation rotation; /* current mode */
Rotation supported_rotations; /* driver supported */
/* Used to wrap EnterVT so we can re-probe the outputs when a laptop unsuspends
* (actually, any time that we switch back into our VT).
*
* See https://bugs.freedesktop.org/show_bug.cgi?id=21554
*/
xf86EnterVTProc *orig_EnterVT;
} XF86RandRInfoRec, *XF86RandRInfoPtr;
#ifdef RANDR_12_INTERFACE
@ -1745,11 +1752,26 @@ xf86RandR12ChangeGamma(int scrnIndex, Gamma gamma)
return Success;
}
static Bool
xf86RandR12EnterVT (int screen_index, int flags)
{
ScreenPtr pScreen = screenInfo.screens[screen_index];
XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
if (randrp->orig_EnterVT) {
if (!randrp->orig_EnterVT (screen_index, flags))
return FALSE;
}
return RRGetInfo (pScreen, TRUE); /* force a re-probe of outputs and notify clients about changes */
}
static Bool
xf86RandR12Init12 (ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
rrScrPrivPtr rp = rrGetScrPriv(pScreen);
XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
rp->rrGetInfo = xf86RandR12GetInfo12;
rp->rrScreenSetSize = xf86RandR12ScreenSetSize;
@ -1767,6 +1789,10 @@ xf86RandR12Init12 (ScreenPtr pScreen)
rp->rrSetConfig = NULL;
pScrn->PointerMoved = xf86RandR12PointerMoved;
pScrn->ChangeGamma = xf86RandR12ChangeGamma;
randrp->orig_EnterVT = pScrn->EnterVT;
pScrn->EnterVT = xf86RandR12EnterVT;
if (!xf86RandR12CreateObjects12 (pScreen))
return FALSE;