Hi,

On 23-01-15 05:20, Peter Hutterer wrote:
On Wed, Jan 21, 2015 at 10:36:16AM +0100, Hans de Goede wrote:
systemd-logind integration does not work when starting X on a new tty, as
that detaches X from the current session and after hat systemd-logind revokes
all rights any already open fds and refuses to open new fds for X.

This means that currently e.g. "startx -- vt7" breaks, and breaks badly,
requiring ssh access to the system to kill X.

The fix for this is easy, we must not use systemd-logind integration when
not using KeepTty, or iow we may only use systemd-logind integration together
with KeepTty.

Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
  hw/xfree86/os-support/linux/systemd-logind.c | 7 +++++++
  1 file changed, 7 insertions(+)

diff --git a/hw/xfree86/os-support/linux/systemd-logind.c 
b/hw/xfree86/os-support/linux/systemd-logind.c
index 49758f4..b061877 100644
--- a/hw/xfree86/os-support/linux/systemd-logind.c
+++ b/hw/xfree86/os-support/linux/systemd-logind.c
@@ -34,6 +34,7 @@

  #include "os.h"
  #include "dbus-core.h"
+#include "linux.h"
  #include "xf86.h"
  #include "xf86platformBus.h"
  #include "xf86Xinput.h"
@@ -595,6 +596,12 @@ static struct dbus_core_hook core_hook = {
  int
  systemd_logind_init(void)
  {
+    /* get vtno now as it may change keeptty */
+    linux_get_vtno();
+    /* systemd_logind integration requires keeptty */
+    if (!linux_get_keeptty())
+        return 1;
+

I think this behaviour should be documented in the man page. And maybe even
printf here that "-keeptty provided, disabling systemd-logind" as an Info.
Otherwise there's too much quietly happening that's not obvious.

with that, Reviewed-by: Peter Hutterer <peter.hutte...@who-t.net>
for both

Will fix both for v2.

Regards,

Hans
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