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Last night I switched from Windows 7 to Ubuntu 15.04, I was told to use 15.04 instead of 14.04 LTS.

Issues

  1. Every time Ubuntu reaches the login screen it freezes for like 2 minutes before I can input my password.
  2. I have very odd graphical glitches where half of the screen would go black and I no longer have control over the mouse.
  3. Sometimes the whole sidebar and the top menu bar disappears after logging in.

PC Overview

Memory 7.7 GiB

Processor AMD Athlon(tm) X4 860K Quad Core Processor x 4

Graphics Gallium 0.4 on NV44

OS Type 64-bit

What I have tried?

I have tried to install and use the NVidia graphics card drivers but it seems to mess up even more, I get stuck in a login loop which I've Google'd, however it still didn't fix the issue so I removed NVidia.

I changed from lightdm to gdm (not that I know what it does) but it still didn't do anything at all.

My Predicament

I literally have 0 knowledge on Linux, so if the answers could be in layman's terms it would be much appreciated.

Script47
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1 Answers1

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Try another desktop environment (compatibility issues)

If you use plasma5 (from KDE), you may have the same issue as me. But I guess you have the normal Ubuntu with Unity desktop. Anyway here my experience:

I've also switched to Ubuntu-Studio (default desktop is XFCE) 15.04 and installed the new KDE desktop plasma5. At first it went well, but then the graphics and all glitched really hard - thought it was my SSD, but now I am using XFCE again and it is all fine.

I heard that the plasma5 desktop runs fine on gentoo Linux, so maybe there are compatibility issues between the new ubuntu version and the new plasma version

In addition please tell us your desktop environment and/or Ubuntu distro (e.g. normal Ubuntu or Kubuntu (KDE)...).

Another desktop can be installed with the software center/package manager and then is available at the login screen (lightdm should be fine for your login screen system)

Community
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Breaker222
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  • I'm curious, does my PC requirements not meet Ubuntu's specifications? – Script47 Oct 21 '15 at 13:48
  • RAM should be more than enough. I would say min 1 GB. CPU should be fine too - for comparison: I use AMD dualcore 3200MHz – Breaker222 Oct 21 '15 at 14:31
  • RAM should be more than enough. I would say min 1 GB. CPU should be fine too - for comparison: I use AMD Athlon(tm) II X2 260 Processor (dualcore 800 - 3200MHz). Graphics I cannot estimate, but for comparison: I use GeForce GT 640. About 2 yrs old. – Breaker222 Oct 21 '15 at 14:37
  • For now I've installed the GNOME shell, it is performing very well, thanks. Is it 15.04 that's causing the issue? I'm wondering would 14.04 LTS perform better? – Script47 Oct 21 '15 at 15:06