From f9cd6be10ece07e10488c05e270a0b5860779864 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Mon, 3 Mar 2014 20:49:33 +0100 Subject: [PATCH] logind: ignore lid switch events for 30s after each suspend and 3min after startup This is needed to give USB docking stations and suchlike time to settle, so that a display connected to an USB docking station can actually act as a lid swith inhibitor correctly. With this change we should have somewhat reliable docking station support in place. --- src/login/logind-action.c | 15 ++++++++++++++- src/login/logind-dbus.c | 3 +++ src/login/logind.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ src/login/logind.h | 7 +++++++ 4 files changed, 69 insertions(+), 1 deletion(-) diff --git src/login/logind-action.c src/login/logind-action.c index c9d8bc5..ae7b350 100644 --- src/login/logind-action.c +++ src/login/logind-action.c @@ -70,20 +70,33 @@ int manager_handle_action( return 0; } - /* If we are docked don't react to lid closing */ if (inhibit_key == INHIBIT_HANDLE_LID_SWITCH) { int n; + /* If we are docked don't react to lid closing */ if (manager_is_docked(m)) { log_debug("Ignoring lid switch request, system is docked."); return 0; } + /* If we have more than one or no displays connected, + * don't react to lid closing. The no display case we + * treat like this under the assumption that there is + * no modern drm driver available. */ n = manager_count_displays(m); if (n != 1) { log_debug("Ignoring lid switch request, %i displays connected.", n); return 0; } + + /* If the last system suspend or startup is too close, + * let's not suspend for now, to give USB docking + * stations some time to settle so that we can + * properly watch its displays. */ + if (m->lid_switch_ignore_event_source) { + log_debug("Ignoring lid switch request, system startup or resume too close."); + return 0; + } } /* If the key handling is inhibited, don't do anything */ diff --git src/login/logind-dbus.c src/login/logind-dbus.c index fc89531..c9c58f3 100644 --- src/login/logind-dbus.c +++ src/login/logind-dbus.c @@ -1337,6 +1337,9 @@ static int execute_shutdown_or_sleep( m->action_job = c; m->action_what = w; + /* Make sure the lid switch is ignored for a while */ + manager_set_lid_switch_ignore(m, now(CLOCK_MONOTONIC) + IGNORE_LID_SWITCH_SUSPEND_USEC); + return 0; } diff --git src/login/logind.c src/login/logind.c index 10f61ab..fd113b3 100644 --- src/login/logind.c +++ src/login/logind.c @@ -144,6 +144,7 @@ void manager_free(Manager *m) { sd_event_source_unref(m->udev_device_event_source); sd_event_source_unref(m->udev_vcsa_event_source); sd_event_source_unref(m->udev_button_event_source); + sd_event_source_unref(m->lid_switch_ignore_event_source); if (m->console_active_fd >= 0) close_nointr_nofail(m->console_active_fd); @@ -959,6 +960,46 @@ static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *us return 0; } +static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) { + Manager *m = userdata; + + assert(e); + assert(m); + + m->lid_switch_ignore_event_source = sd_event_source_unref(m->lid_switch_ignore_event_source); + return 0; +} + +int manager_set_lid_switch_ignore(Manager *m, usec_t until) { + int r; + + assert(m); + + if (until <= now(CLOCK_MONOTONIC)) + return 0; + + /* We want to ignore the lid switch for a while after each + * suspend, and after boot-up. Hence let's install a timer for + * this. As long as the event source exists we ignore the lid + * switch. */ + + if (m->lid_switch_ignore_event_source) { + usec_t u; + + r = sd_event_source_get_time(m->lid_switch_ignore_event_source, &u); + if (r < 0) + return r; + + if (until <= u) + return 0; + + r = sd_event_source_set_time(m->lid_switch_ignore_event_source, until); + } else + r = sd_event_add_monotonic(m->event, &m->lid_switch_ignore_event_source, until, 0, lid_switch_ignore_handler, m); + + return r; +} + int manager_startup(Manager *m) { int r; Seat *seat; @@ -994,6 +1035,10 @@ int manager_startup(Manager *m) { return r; } + r = manager_set_lid_switch_ignore(m, 0 + IGNORE_LID_SWITCH_STARTUP_USEC); + if (r < 0) + log_warning("Failed to set up lid switch ignore event source: %s", strerror(-r)); + /* Deserialize state */ r = manager_enumerate_devices(m); if (r < 0) diff --git src/login/logind.h src/login/logind.h index 74d6641..4bb8e7b 100644 --- src/login/logind.h +++ src/login/logind.h @@ -42,6 +42,9 @@ typedef struct Manager Manager; #include "logind-button.h" #include "logind-action.h" +#define IGNORE_LID_SWITCH_STARTUP_USEC (3 * USEC_PER_MINUTE) +#define IGNORE_LID_SWITCH_SUSPEND_USEC (30 * USEC_PER_SEC) + struct Manager { sd_event *event; sd_bus *bus; @@ -118,6 +121,8 @@ struct Manager { bool lid_switch_ignore_inhibited; Hashmap *polkit_registry; + + sd_event_source *lid_switch_ignore_event_source; }; Manager *manager_new(void); @@ -178,3 +183,5 @@ const struct ConfigPerfItem* logind_gperf_lookup(const char *key, unsigned lengt int manager_watch_busname(Manager *manager, const char *name); void manager_drop_busname(Manager *manager, const char *name); + +int manager_set_lid_switch_ignore(Manager *m, usec_t until); -- 1.7.9.2