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[client] x11: work around issue with desktop switch on i3

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For an unknwon reason when LG is on another desktop (hidden) and the
user switches to that desktop, the first attempt to grab the pointer
results in a GrabFrozen result. This adds some simple retry logic to
attempt again after a short (100ms) delay which seems to resolve the
issue.
This commit is contained in:
Geoffrey McRae 2021-12-15 00:23:44 +11:00
parent 2e170ad06f
commit b6fa296d5a
1 changed files with 11 additions and 1 deletions
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12
client/displayservers/X11/x11.c
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@ -1643,7 +1643,10 @@ static void x11GrabPointer(void)
XISetMask(mask.mask, XI_Enter ); XISetMask(mask.mask, XI_Enter );
XISetMask(mask.mask, XI_Leave ); XISetMask(mask.mask, XI_Leave );
Status ret = XIGrabDevice( Status ret;
for(int retry = 0; retry < 2; ++retry)
{
ret = XIGrabDevice(
x11.display, x11.display,
x11.pointerDev, x11.pointerDev,
x11.window, x11.window,
@ -1654,6 +1657,13 @@ static void x11GrabPointer(void)
XINoOwnerEvents, XINoOwnerEvents,
&mask); &mask);
// on some WMs (i3) for an unknown reason the first grab attempt when
// switching to a desktop that has LG on it fails with GrabFrozen, however
// adding as short delay seems to resolve the issue.
if (ret == GrabFrozen && retry == 0)
usleep(100000);
}
if (ret != Success) if (ret != Success)
{ {
x11PrintGrabError("pointer", x11.pointerDev, ret); x11PrintGrabError("pointer", x11.pointerDev, ret);