Index: binaries/data/mods/public/gui/session/hotkeys/misc.xml
===================================================================
--- binaries/data/mods/public/gui/session/hotkeys/misc.xml
+++ binaries/data/mods/public/gui/session/hotkeys/misc.xml
@@ -88,12 +88,12 @@
 	</object>
 
 	<object hotkey="session.batchtrain">
-		<action on="Press">updateSelectionDetails();</action>
+		<action on="Firstpress">updateSelectionDetails();</action>
 		<action on="Release">updateSelectionDetails();</action>
 	</object>
 
 	<object hotkey="session.massbarter">
-		<action on="Press">
+		<action on="Firstpress">
 			updateSelectionDetails();
 			updateBarterButtons();
 		</action>
Index: source/gui/CGUI.cpp
===================================================================
--- source/gui/CGUI.cpp
+++ source/gui/CGUI.cpp
@@ -81,6 +81,10 @@
 				HotkeyInputHandler(ev);
 				ret = IN_HANDLED;
 
+				// On keydown send 1 ore 2 messages depending on repeat flag, this does not work on linux
+				// for special keys (shift, alt, ctrl), since the linux keyboard only sends the KEYDOWN only once.
+				if (ev->ev.type == SDL_HOTKEYDOWN && ev->ev.key.repeat == 0)
+					obj->SendEvent(GUIM_PRESSED, "firstpress");
 				if (ev->ev.type == SDL_HOTKEYDOWN)
 					obj->SendEvent(GUIM_PRESSED, "press");
 				else
Index: source/ps/Hotkey.cpp
===================================================================
--- source/ps/Hotkey.cpp
+++ source/ps/Hotkey.cpp
@@ -214,6 +214,9 @@
 
 	SDL_Event_ phantom;
 	phantom.ev.type = ((ev->ev.type == SDL_KEYDOWN) || (ev->ev.type == SDL_MOUSEBUTTONDOWN)) ? SDL_KEYDOWN : SDL_KEYUP;
+	if (phantom.ev.type == SDL_KEYDOWN)
+		phantom.ev.key.repeat = ev->ev.key.repeat;
+
 	if ((keycode == SDLK_LSHIFT) || (keycode == SDLK_RSHIFT))
 	{
 		phantom.ev.key.keysym.sym = (SDL_Keycode)UNIFIED_SHIFT;
@@ -306,6 +309,7 @@
 	{
 		SDL_Event_ hotkeyNotification;
 		hotkeyNotification.ev.type = SDL_HOTKEYDOWN;
+		hotkeyNotification.ev.key.repeat = ev->ev.key.repeat;
 		hotkeyNotification.ev.user.data1 = const_cast<char*>(closestMapNames[i]);
 		in_push_priority_event(&hotkeyNotification);
 	}