Fix ACPI button event detection on machines with an independent ACPI event controller module such as Thinkpads

Only detect the ACPI key press event, not the key release event

tdecore/tdehw/tdeeventdevice.cpp

@@ -143,7 +143,7 @@ void TDEEventDevice::eventReceived() {
 	int r;
 	r = read(m_fd, &ev, sizeof(struct input_event));
 	if (r > 0) {
-		if (ev.type == EV_KEY) {
+		if ((ev.type == EV_KEY) && (ev.value == 1)) {	// Only detect keypress events (value == 1)
 			emit keyPressed(ev.code, this);
 		}
 	}

tdecore/tdehw/tdeeventdevice.h

@@ -29,7 +29,9 @@ enum TDEEventDeviceType {
 	Unknown,
 	ACPILidSwitch,
 	ACPISleepButton,
+	ACPISuspendButton,
 	ACPIPowerButton,
+	ACPIOtherInput,
 	Other = 0x80000000
 };
 };

tdecore/tdehw/tdehardwaredevices.cpp

@@ -3056,6 +3056,9 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 		else if (edevice->systemPath().contains("PNP0C0C") || edevice->systemPath().contains("/LNXPWRBN")) {
 			edevice->internalSetEventType(TDEEventDeviceType::ACPIPowerButton);
 		}
+		else if (edevice->systemPath().contains("_acpi")) {
+			edevice->internalSetEventType(TDEEventDeviceType::ACPIOtherInput);
+		}
 		else {
 			edevice->internalSetEventType(TDEEventDeviceType::Unknown);
 		}
@@ -3073,6 +3076,9 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 		else if (idevice->systemPath().contains("PNP0C0C") || idevice->systemPath().contains("/LNXPWRBN")) {
 			idevice->internalSetInputType(TDEInputDeviceType::ACPIPowerButton);
 		}
+		else if (idevice->systemPath().contains("_acpi")) {
+			idevice->internalSetInputType(TDEInputDeviceType::ACPIOtherInput);
+		}
 		else {
 			idevice->internalSetInputType(TDEInputDeviceType::Unknown);
 		}

tdecore/tdehw/tdeinputdevice.h

@@ -27,7 +27,9 @@ enum TDEInputDeviceType {
 	Unknown,
 	ACPILidSwitch,
 	ACPISleepButton,
+	ACPISuspendButton,
 	ACPIPowerButton,
+	ACPIOtherInput,
 	Other = 0x80000000
 };
 };