<div>
You could try<br />
<br />
&nbsp;
<pre><code class="code-1 nolinks" id="code-20-41459599-1"><span>sudo apt-get update</span>
<span>sudo apt-get upgrade</span>
</code></pre>
<br />
After that reboot and check if the issue is resolved.<br />
<br />
But personally I wouldn't use Ubuntu, it's Unity user interface is terrible to use and slow, and it is very hardware resource hungry. There are far better linux distro's, the best currently is MakuluLinux, which has an Aero (UI that resembles Windows 7, but it also needs a good GPU) and the XFCE version which needs less hardware resources. Both are much faster and more reliable than Ubuntu, and they are based on Ubuntu/Debian, so you can install software for those distro's easily.<br />
<br />
<a href="http://makululinux.com" rel="ugc">http://makululinux.com</a>
</div>


<div>
@rindi, Thanks &nbsp;for your help.<br />
<br />
I am about to test <br />
<br />
sudo apt-get update<br />
sudo apt-get upgrade<br />
reboot<br />
<br />
<br />
What else should I try if this doesn;t stop the blinking problem?
</div>


<div>
As I said, don't use Ubuntu... or change from unity to something like XFCE.
</div>


<div>
@rindi,<br />
&nbsp; &nbsp; &nbsp; &nbsp;I must use Ubuntu because our customer is required to use Ubuntu.<br />
<br />
I just tried sudo apt-get update followed by sudo apt-get upgrade followed my reboot and it did not fix the problem<br />
<br />
&nbsp; &nbsp; &nbsp; May I ask how to fix the Nautilus File Manager driver problem?<br />
<br />
&nbsp; &nbsp; &nbsp;Thank you for your expertise.
</div>


<div>
It's unlikely to do with nautilus. What GPU does your PC use? If it is a Radeon or NVidia, did you install the legacy drivers?
</div>


<div>
Besides, can't it be Xubuntu or Lubuntu? Those at least have usable desktops. Or install the XFCE4 desktop alongside unity, and then work inside XFCE rather than unity.
</div>


<div>
@rindi,<br />
&nbsp;Thank you for your expertise in linux systems integration.<br />
&nbsp;I will accept your solution soon.<br />
<br />
As shown below , my PC uses the Nvidia GPU.<br />
&nbsp; <br />
venkat@venkat-ThinkStation<wbr />-S10:~$ lspci | grep VGA<br />
01:00.0 VGA compatible controller: NVIDIA Corporation G86 [Quadro NVS 290] (rev a1)<br />
03:00.0 VGA compatible controller: NVIDIA Corporation G86 [Quadro NVS 290] (rev a1)<br />
<br />
How do I tell if I previously installed Nvidia * legacy * drivers?<br />
<br />
How do I install the new generation of Nvidia drivers on top of the &nbsp;Nvidia * legacy * drivers?<br />
<br />
How do I install the XFCE4 desktop alongside unity, and then work inside XFCE rather than Unity?
</div>


<div>
rindi's &nbsp;solution was excellent and solved my problem. rindi clearly explained the alternative solutions. I hope rindi can answer more of my Expert Exchange questions in the future.
</div>


<div>
<div class="content wysiwyg-content">
I recently installed Ubuntu Linux 15.10 on a Lenovo desktop.After a mysterious crash last night while testing point and click of an Mono-.NET 4.5 C# executable which DLLImport's an C++ shared object, the Files GUI manager , /usr/bin/xdg-open , flickers on and off . I removed the package xdg-utils and then installed it again followed by a system reboot and the Files GUI manager , /usr/bin/xdg-open , * still * flickers on and off. <br />
<br />
&nbsp; &nbsp;I goofed up. Nautilus is the file manager. An Xamarin expert advised I have driver issues.<br />
so that either I force the system to disable 3d acceleration (the GUI is 3d accelerated by default), or I should change your graphics card, or I might have to update the driver.<br />
<br />
&nbsp; &nbsp;How do we force Nautilus to disable 3d acceleration?<br />
<br />
&nbsp; Please advise me how to fix this problem. Any help is greatly appreciated
</div>
</div>


I recently installed Ubuntu Linux 15.10 on a Lenovo desktop.After a mysterious crash last night while testing point and click of an Mono-.NET 4.5 C# executable which DLLImport's an C++ shared object, the Files GUI manager , /usr/bin/xdg-open , flickers on and off . I removed the package xdg-utils and then installed it again followed by a system reboot and the Files GUI manager , /usr/bin/xdg-open , * still * flickers on and off. 

   I goofed up. Nautilus is the file manager. An Xamarin expert advised I have driver issues.
so that either I force the system to disable 3d acceleration (the GUI is 3d accelerated by default), or I should change your graphics card, or I might have to update the driver.

   How do we force Nautilus to disable 3d acceleration?

  Please advise me how to fix this problem. Any help is greatly appreciated

How to fix the Ubuntu Linux 15.10 Files GUI manager , Nautilus , flickers on and off?

Mono is an open source platform based on the .NET framework to enable the development of Linux and other cross-platform applications. Based on C# and the Common Language Infrastructure (CLI) standards, applications can also be developed in VB.NET, Java, Python, F#, Ruby, Eiffel and others, and includes a Microsoft compatible API.

Mono Platform

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).