Created attachment 877393 [details] Xorg.0.log Description of problem: In F17 and earlier, I had say 2-3 occurrences of disappearing mouse cursor a year, but after upgrading to F20, it is almost daily, often as many as 3 times a day. I use GNOME with lots of virtual desktops (single monitor), am running full screen gnome-terminal on most of the desktops, firefox on another one, and typically during switching between virtual desktops (Ctrl-Alt-Up/Down) from time to time the mouse cursor goes away and doesn't reappear even because of logging out, or restarting Xorg (Ctrl-Alt-F2, log in on console as root, killall Xorg), the only thing that helps to get mouse cursor back is reboot. Until reboot the only way to spot the mouse cursor is from side-effects it has on various apps (e.g. buttons changing color, links in web browser, etc.) Additionally, quite frequently (e.g. once a day or two) all GUI apps decide to freeze for say 2-5 minutes, the only thing that works during that time is Ctrl-Alt-Fn switching to text console, where it doesn't show any app eating significant CPU, and no swapping is occuring, non-gui apps seems to work normally. After some time I can switch back to X and it becomes normally responsible again. Version-Release number of selected component (if applicable): xorg-x11-drv-ati-7.2.0-3.20131101git3b38701.fc20.x86_64
I found that the freeze/cursor disappearance can be some what worked around with alt-tab ; also alt-f2 + r (restarting gnome-shell) sometimes helps. Though it looks like you have it worse.
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