[ubuntu-za] Ubuntu 12.04 behaviour

[Robin Bownes]

On 05/28/2012 09:04 PM, tim at cybersmart.co.za wrote:
>
>
> Sent from my HTC
>
> ----- Reply message -----
> From: "Robin Bownes" <robin at bownes.co.za>
> To: <ubuntu-za at lists.ubuntu.com>
> Subject: [ubuntu-za] Ubuntu 12.04 behaviour
> Date: Mon, May 28, 2012 18:27
>
>
> On 05/28/2012 05:59 PM, Jan Greeff wrote:
> >  Since doing a new install of Ubuntu 12.04 from CD's burnt from images>  that I received from a local computer shop, the owner of which is a>  keen Ubuntu user, my system has been freezing regularly at the drop of>  a hat. The screen goes gray and everything freezes for a few seconds>  but sometimes it lasts for a few minutes.
> >
> >  It seems to happen at any time, during Thunderbird mail operations,>  Libre Office documents, software centre operations, browsing, etc.
> >
> >  It is happening on the 64 bit installation on my machine as well as on>  the 32 bit installation on the one that my wife is using.
> >
> >  I followed up the installation by running upgrade and update on both>  machines.
> >
> >  Are there any suggestions about where to from here?
> >
> >  Jan
> >
>
> I've also been experiencing similar problems on my 32 bit installation. They have improved somewhat since I substituted Google Chrome browser for FireFox. (I had begun to notice that I was beginning to get a lot of script errors from Firefox) However, the problem is not completely solved.
>
> I use Gimp for all of my photo manipulation, and have noticed that one or two of the built-in Gimp tools have a considerable delay between appearing on the screen and when they become usable. (application screen greys and mouse clicks have no effect within the application) I've been using Ubuntu&  Gimp for my photo editing for years, and this is the first time that I've experienced this problem. Not sure if this is the same problem, but it looks and feels similar.
>
> Not sure whether it has anything to do with anything, but I am having trouble (along with many other people, it would seem) with Samba 4.0, which installed itself, in alpha version, somewhere along the line. This causes errors when I un/install applications. I suppose it is conceivable that it is causing other problems as well.
>
> I'd also be really keen to hear if any of the boffins can shed some light on this.
>
> Robin
>
> I have the same problem with Firefox, but use chrome by choice anyway.
> I'm using Gimp 2.8 with no problem as you've described. How much RAM do you have and what is the average photo size you are processing? How many layers etc?
> My loading in this area its not high. Cheers
> Tim
Hi Tim,

2GB of RAM. Photo size varies from relatively small (under 1MB) jpegs, 
to RAW files of 80MB or so. Number of layers, etc., also varies greatly. 
However, file size/layers/etc has no effect on the problem within Gimp. 
It happens to the same extent on small files as large. Also, its only a 
small number of the tools - Colour Levels being the most common, and 
which comes to mind - that give the problem. The rest of the time 
everything is fine. Also doesn't matter how many other apps I have 
running at the time. Neither do I have the problem when using digiKam or 
RawTherapee.

Robin