5.4-stable review patch. If anyone has any objections, please let me know.
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From: Nicolas Pitre npitre@baylibre.com
[ Upstream commit ff78538e07fa284ce08cbbcb0730daa91ed16722 ]
Programs using poll() on /dev/vcsa to be notified when VT changes occur were missing one case: the switch from gfx to text mode.
Signed-off-by: Nicolas Pitre npitre@baylibre.com Link: https://lore.kernel.org/r/9o5ro928-0pp4-05rq-70p4-ro385n21n723@onlyvoer.pbz Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/vt/vt.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index e58dceaf7ff0e..3db8efd58747d 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -4368,6 +4368,7 @@ void do_unblank_screen(int leaving_gfx) set_palette(vc); set_cursor(vc); vt_event_post(VT_EVENT_UNBLANK, vc->vc_num, vc->vc_num); + notify_update(vc); } EXPORT_SYMBOL(do_unblank_screen);