unity-dev team mailing list archive

[Sam Spilsbury <smspillaz@xxxxxxxxx>]

Hi Nick,

If you're using the default nouveau driver there are some known issues
where textures can be corrupted if it can't find memory to allocate
for them. Best thing to do in that instance is to either install the
binary nvidia drivers or to run at a lower resolution.

Best,

Sam.

On Mon, May 6, 2013 at 9:32 PM, Nick Lehmann <nickmann97@xxxxxxxxx> wrote:
> Hi guys,
>
> I'm a german guy and have a little problem with the unity desktop. I'm using
> a Acer TravelMate 5742G with a Intel Core i5-460M (2 * 2,53GHz, 3MB L3
> cache), a Nvidia GeForce GT 420M and 15.6" HD monitor with a resolution of
> 1366 and 768 px.
> I installed Ubuntu 12.10 and everything was fine. The OS run and I could
> work normally. I do the normal desktop jobs with it including some image
> editing, some 3D modelling, programming (my used tools are Eclipse, Aptana
> and XAMPP), using TeX and my homeworks with LibreOffice. But after working
> for a while I get some render errors in unity. So some icons won't be
> displayed correct, the names you see when you drive over a icon on the dock
> are unrecognisable and the dash is defaced. After that I log me out and on
> again and everything is fine for a while. To this I must say that I only
> have this problems when I use an extern 1920 x 1080 monitor instead of my
> laptop monitor, respectively I can't remember a time the error occured while
> I was using my laptop monitor.
> A similar error occured when I let my laptop in standby for a while, open it
> and see only a single graphical mess. Then I shutdown the OS a little bit
> more brutal by holding the power button and start it normally.
> Another problem with the graphic (but I'm not sure if these errors are
> linked). This happens every 30th boot. I see only a black screen with some
> lines of logs, but no errors and the login screen is missing. Then I restart
> my computer and everything is fine.
> I didn't find anything similar in the internet and I don't no what I have to
> do next. Does anybody has an idea?
>
> Here are some examples
> http://postimg.org/image/6ex0hidlj/
> http://postimg.org/image/f09jd3jax/
> http://postimg.org/image/bhxjgpiex/
> http://postimg.org/image/iw6qxef8t/
>
> I asked this on Launchpad already under
> https://answers.launchpad.net/ubuntu/+question/228026. One advice was that I
> should reset unity. Because "unity --reset" is deprecated I used the "dconf
> reset -f /org/compiz/" command, but nothing happens. I also reseted the
> unity icons with "unity --reset-icons", but the bug also occured.
>
> I didn't find any other reports about this bug so I hope you can help me and
> fix the bug. And sorry for mistakes in writing.
>
> Thank you
> Nick
>
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-- 
Sam Spilsbury