First of all, I'm sorry for my English.
I do not know if this is the better place to report bugs, but, if do not, I'm sorry.
I would like to report some bugs that I found in this realease (15.10.2).
The first one (which bothers me a lot) happens when I lock the screen, and then, when I go back, my keyboard, it is "English (International, with dead keys)", both dead keys and "alt gr" have stoped working.
The second is, when I'm using multi-display, my secondary screen do not have wallpaper.
Third, the touch screen does not work correctely on multi-displays, It is considered the second screen as part of the touch screen area of the first screen.
And finally, I would like to ask you to update the kernel, I have to compile the kernel because the current one is very old, and neither bluetooth, nor wireless, nor some other functions currently work.
中文 
I do not know if this is the better place to report bugs, but, if do not, I'm sorry.
I would like to report some bugs that I found in this realease (15.10.2).
The first one (which bothers me a lot) happens when I lock the screen, and then, when I go back, my keyboard, it is "English (International, with dead keys)", both dead keys and "alt gr" have stoped working.
The second is, when I'm using multi-display, my secondary screen do not have wallpaper.
Third, the touch screen does not work correctely on multi-displays, It is considered the second screen as part of the touch screen area of the first screen.
And finally, I would like to ask you to update the kernel, I have to compile the kernel because the current one is very old, and neither bluetooth, nor wireless, nor some other functions currently work.