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tty: Leave tty in KD_GRAPHICS mode during vt switches

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Part of the point of KD_GRAPHICS mode is that the kernel doesn't try
to restore the VT contents when we switch bach, but leaves that
to the user mode process.  This avoids ugly flicker of text mode contents
before the compositor takes over.
This commit is contained in:
Kristian Høgsberg
2012-01-15 15:17:58 -05:00
parent c5b9ddb610
commit 92734c5673
1 changed files with 1 additions and 10 deletions
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src/tty.c
+1 -10
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@@ -48,14 +48,10 @@ struct tty {
static int on_enter_vt(int signal_number, void *data) static int on_enter_vt(int signal_number, void *data)
{ {
struct tty *tty = data; struct tty *tty = data;
int ret;
tty->vt_func(tty->compositor, TTY_ENTER_VT); tty->vt_func(tty->compositor, TTY_ENTER_VT);
ioctl(tty->fd, VT_RELDISP, VT_ACKACQ); ioctl(tty->fd, VT_RELDISP, VT_ACKACQ);
ret = ioctl(tty->fd, KDSETMODE, KD_GRAPHICS);
if (ret)
fprintf(stderr, "failed to set KD_GRAPHICS mode on console: %m\n");
return 1; return 1;
} }
@@ -64,13 +60,8 @@ static int
on_leave_vt(int signal_number, void *data) on_leave_vt(int signal_number, void *data)
{ {
struct tty *tty = data; struct tty *tty = data;
int ret;
ioctl (tty->fd, VT_RELDISP, 1); ioctl(tty->fd, VT_RELDISP, 1);
ret = ioctl(tty->fd, KDSETMODE, KD_TEXT);
if (ret)
fprintf(stderr,
"failed to set KD_TEXT mode on console: %m\n");
tty->vt_func(tty->compositor, TTY_LEAVE_VT); tty->vt_func(tty->compositor, TTY_LEAVE_VT);