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Diffstat (limited to 'src/gui/embedded/qscreenlinuxfb_qws.cpp')
-rw-r--r--src/gui/embedded/qscreenlinuxfb_qws.cpp7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/gui/embedded/qscreenlinuxfb_qws.cpp b/src/gui/embedded/qscreenlinuxfb_qws.cpp
index 2cdd16f..4c91416 100644
--- a/src/gui/embedded/qscreenlinuxfb_qws.cpp
+++ b/src/gui/embedded/qscreenlinuxfb_qws.cpp
@@ -1221,7 +1221,7 @@ int QLinuxFbScreen::sharedRamSize(void * end)
/*!
\reimp
*/
-void QLinuxFbScreen::setDirty(const QRect &)
+void QLinuxFbScreen::setDirty(const QRect &r)
{
if(d_ptr->is8Track) {
// e-Ink displays need a trigger to actually show what is
@@ -1231,7 +1231,10 @@ void QLinuxFbScreen::setDirty(const QRect &)
// memory.
// There doesn't seem to be a way to tell it to just update
// a subset of the screen.
- ioctl(d_ptr->fd, 0x46a2, 1);
+ if(r.left() == 0 && r.top() == 0 && r.width() == dw && r.height() == dh)
+ ioctl(d_ptr->fd, 0x46a2, 1);
+ else
+ ioctl(d_ptr->fd, 0x46a2, 0);
}
}