Created attachment 937273 [details]
the appearance of the screen, taken with a phone camera.

Description of problem:
It is easier to describe with a digital picture - the mouse pointer is stuck at about half the normal height (i.e. squashed vertically) as well as having a block of corruptedness underneath it which is dragged around with it, even as it changes from arrow to text prompt to cross-hair, all squashed vertically.

Strangely enough using gnome screenshot to capture with the 'include mouse pointer' option, results in a captured screenshot which is uncorrupted and with a full size pointer, and the screen remains corrupted. Hence my using an external camera to take a shot of the screen.

It is probably related to the hardware being new and driver support incomplete.
(it is a new laptop with fairly current hardware - 
x-video does not work either, but I'll file a second bug for that) - 

$ lspci | grep VGA
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Mullins [Radeon R3 Graphics]


Version-Release number of selected component (if applicable):

# rpm -q kernel libdrm xorg-x11-drv-ati xorg-x11-glamor mesa-libGL
kernel-3.11.10-301.fc20.x86_64
kernel-3.15.10-201.fc20.x86_64
kernel-3.16.2-200.fc20.x86_64
libdrm-2.4.56-1.fc20.x86_64
libdrm-2.4.56-1.fc20.i686
xorg-x11-drv-ati-7.2.0-3.20131101git3b38701.fc20.x86_64
xorg-x11-glamor-0.5.1-3.20140115gitfb4d046c.fc20.x86_64
mesa-libGL-10.1.5-1.20140607.fc20.x86_64
mesa-libGL-10.1.5-1.20140607.fc20.i686

How reproducible:
always, since installation.

Steps to Reproduce:
1. Just boots up and watch - it is even apparent before log in, at the gdm screen.
2.
3.

Actual results:
as shown.

Expected results:
correct mouse pointer and no corruption underneath.

Additional info:
It is a toshiba laptop, Satellite C50D-B-11N .