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From 7849ca66af7f74bfdba968e979c4596c9e99ff3d Mon Sep 17 00:00:00 2001
From: Nirbheek Chauhan <nirbheek@gentoo.org>
Date: Sub, 29 May 2011 15:43:22 +0530
Subject: [PATCH] Add Dell laptop battery always-discharging quirk
Once full, some Dell laptop batteries show battery state as "fully-charged" for
a second, and then set battery state as "Discharging". However, the "on-battery"
status is correct. Try to do some guesswork for this case.
Was observed with the following battery:
vendor: SAMSUNG SDI
model: DELL U600P04
serial: 0000
technology: lithium-ion
https://bugs.freedesktop.org/show_bug.cgi?id=31196
---
src/linux/up-device-supply.c | 37 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/src/linux/up-device-supply.c b/src/linux/up-device-supply.c
index 341f5df..4294e04 100644
--- a/src/linux/up-device-supply.c
+++ b/src/linux/up-device-supply.c
@@ -402,6 +402,8 @@ up_device_supply_refresh_battery (UpDeviceSupply *supply)
UpDeviceState old_state;
UpDeviceState state;
UpDevice *device = UP_DEVICE (supply);
+ UpDevice *device_tmp;
+ UpDeviceKind type;
const gchar *native_path;
GUdevDevice *native;
gboolean is_present;
@@ -599,6 +604,40 @@ up_device_supply_refresh_battery (UpDeviceSupply *supply)
if (percentage > 100.0f)
percentage = 100.0f;
}
+ /* some batteries show themselves as 'discharging' once they're full */
+ if (state == UP_DEVICE_STATE_DISCHARGING && percentage == 100.0f) {
+ state = UP_DEVICE_STATE_FULLY_CHARGED;
+ daemon = up_device_get_daemon (device);
+ /* get states of AC power supplies */
+ devices = up_device_list_get_array (up_daemon_get_device_list(daemon));
+ for (i = 0; i < devices->len; i++) {
+ device_tmp = (UpDevice *) g_ptr_array_index (devices, i);
+ g_object_get (device_tmp,
+ "type", &type,
+ NULL);
+ if (type != UP_DEVICE_KIND_LINE_POWER)
+ continue;
+ ret = up_device_supply_get_online (device_tmp, &online);
+ if (!ret)
+ continue;
+
+ /* print what we're trying */
+ g_debug ("guessing battery state using power supply status:%i",
+ online);
+
+ /* If any of the power supplies is not online,
+ * assume it's discharging, and break */
+ if (!online) {
+ state = UP_DEVICE_STATE_DISCHARGING;
+ break;
+ }
+ }
+ /* print what we did */
+ g_debug ("guessed battery state as '%s' using power supply status",
+ up_device_state_to_string (state));
+
+ g_ptr_array_unref (devices);
+ }
/* the battery isn't charging or discharging, it's just
* sitting there half full doing nothing: try to guess a state */
--
1.7.2.2
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