Hi, with the recent changes the input_server stopped working for me. I spent the whole afternoon to find out why, but I couldn't. When I compile for consoled, the input_server doesn't do anything when I press keys (F12 doesn't work as well). When I compile for app_server and start the app_server I get lots of "unhandled io interrupt 39" messages over the serial line. Once out of 20 boots with the app_server the mouse worked but the keyboard didn't and another time the keyboard worked once until I moved the mouse, then it stopped. Here is what I found out while trying to get the input_server working with consoled: First I enabled debug output for the ps2_hid driver in src/add-ons/kernel/drivers/input/ps2_hid). After doing this, the last text which came over the serial line was: mouse_open(): mouse succesfully enabled MS_SET_MAP (set mouse mapping) not implemented MS_SETCLICK (set click speed) MS_GET_ACCEL (get mouse acceleration) not implemented MS_SET_ACCEL (set mouse acceleration) not implemented MS_SET_TYPE not implemented MS_READ ps2_mouse_read() so obviously the ps2_hid loaded successfully and the input_server addon "mouse" (located in src/add-ons/input_server/devices/mouse) called ps2_mouse_read() by using the ioctrl MS_READ (in MouseInputDevice::DeviceWatcher()). since "ps2_mouse_read()" (in mouse.c ps2_hid) was the last output on the serial line, I looked at the function itself. after adding some further debugging output I found out that ps2_mouse_read() blocks at status = acquire_sem_etc(sMouseSem, 1, B_CAN_INTERRUPT, 0);. this lock should be released by the handle_mouse_interrupt(), but the function handle_mouse_interrupt() never get's called on my system. so it lookes like the lock in ps2_mouse_read() stopps the whole input_server from working if I press any keyboard keys there is no debug output, but there should be (scancode and so on) another thing I noticed was when I played with the mouse detection code in mouse_open() (mouse.c ps2_hid). if I tell mouse_open() to always act like if there was no mouse found (put_module(B_ISA_MODULE_NAME); return B_ERROR;) and having a mouse actually connected to the ps2 port, the keyboard workes perfect (but only with consoled - I still get the unhandled interrupt messages with app_server). to make this a bit more clear: | mouse connected | no mouse on ps2 | --------------------------------------------------------------- modified mouse detection | is works | is dosn't work | --------------------------------------------------------------- original mouse.c | is dosn't work | is dosn't work | is...input_server hopefully this makes any sense and helps to find the problem. greets philipp -- Philipp Schmid <schmidp@xxxxxxxxxxx> OpenResearch