I have a Dell Inspiron N7110 laptop, running Kubuntu 14.04.2. Whenever I put the laptop in sleep mode, it goes right to sleep, as intended. But when I wake the laptop from sleep mode by pressing the power button or opening the laptop lid, that's when problems arise. When I wake the laptop from sleep mode, I see a login screen, but as soon as I type a character with the keyboard, the screen immediately turns black, with nothing visible except the mouse cursor, which can be moved around with the mouse. From this point it is impossible to log back in to the computer, and I am forced to power off the laptop completely to log back in. This is particularly frustrating! Does anybody know why this is happening? Is there a fix for this?
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