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For the last couple of months my display doesn't clear to the background when a window is closed or minimized. It shows the trail of the window. This was after a update. It also seems to work normally every fourth or fifth update. What is causing this?

enter image description here

sudo lshw | grep -A9 VGA:

description: VGA compatible controller
                product: RS880 [Radeon HD 4200]
                vendor: Advanced Micro Devices, Inc. [AMD/ATI]
                physical id: 5
                bus info: pci@0000:01:05.0
                version: 00
                width: 32 bits
                clock: 33MHz
                capabilities: pm msi vga_controller bus_master cap_list rom
                configuration: driver=radeon latency=0
  • Please provide further information in order to help us help you! edit your post and include information regarding graphics hardware and drivers at minimum. you can obtain this information by running sudo lshw | grep -A9 VGA in a terminal – Elder Geek Sep 4 '16 at 20:22
  • Hi Elder Geek; I added the information to my post that you requested. – rmk1220 Sep 7 '16 at 1:20
  • Odd. It should be fully supported. See: help.ubuntu.com/community/RadeonDriver Is this a desktop or a laptop? – Elder Geek Sep 7 '16 at 4:10
  • It is a desktop – rmk1220 Sep 8 '16 at 0:36
  • 1
    It has to be something with Unity as I switched to Gnome desktop and have not had any problems. I'll try the changing the display manager in unity and see what happens. – rmk1220 Sep 10 '16 at 0:24
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You could try a less demanding Desktop Environment such as Gnome, LXDE, XFCE, or even OpenBox These have been known to work quite well on older systems.

Sources: Can i replace my desktop environment?

http://www.howtogeek.com/107368/how-to-install-the-lightweight-lxde-desktop-on-ubuntu/

https://www.liquidweb.com/kb/how-to-install-the-xfce-desktop-environment-on-ubuntu-14-04-lts/

http://linux.about.com/od/howtos/tp/How-To-Install-And-Configure-Openbox-Using-Ubuntu.htm

  • +1 for doing all the work. Very magnanimous passing trophy (solved) on. 10K is around the corner !!! – WinEunuuchs2Unix Sep 17 '16 at 1:18
  • @WinEunuuchs2Unix I'm just here for the solutions. Appreciation is nice, but not really required. ;-) – Elder Geek Sep 17 '16 at 12:42

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