Re: [Visualpython-users] Segmentation fault on Ubuntu 11.04 !

[Bruce S. <Bru...@nc...>]

Googling around, I see lots of notes about people having trouble with
proprietary graphics drivers on Ubuntu 11.04. As a test, I tried
running the standard OpenGL test program glxgears (which involved
installing some mesa components). It should show gears rotating, but
in fact the animation hardly ran; the gears mostly didn't move. There
is definitely something very wrong in the graphics area of Ubuntu
11.04. This doesn't prove that there isn't some problem with VPython,
but there doesn't seem to be much percentage in trying to debug that
until and unless basic stuff like glxgears can run properly.

Bruce Sherwood

On Thu, May 5, 2011 at 12:16 PM, Bruce Sherwood <Bru...@nc...> wrote:
> It is the case that VPython worked on Ubuntu 10.10, so downgrading
> would presumably work (or maybe you can boot into 10.10 on the boot
> page). The problem presumably is the video driver. Interesting that
> there's a problem with both you ATI card and my Nvidia card.
>
> I'll mention that the package "python-visual" on Ubuntu 11.04 is still
> VPython 5.12, from August 2009. I wonder whether anyone reading this
> list knows something about how Ubuntu packages are prepared. Seems
> like an awfully long lag time from August 2009 to now, nearly two
> years.
>
> Bruce Sherwood
>
> On Thu, May 5, 2011 at 11:53 AM, M. H. <meg...@ho...> wrote:
>> Hi Bruce Sherwood
>>
>> I'm on Ubuntu 11.04 - I would like to hear if there's an easy fix for this
>> or if other users can verify this problem... Would it help to downgrade or
>> anything?
>