[colug-432] A Perplexing Problem

Tue Apr 19 15:10:23 EDT 2016

Can you install glxgears and see if that works?

I don't have a Debian box handy, but I *think* that would be:  sudo apt-get
install mesa-utils && glxgears

glxgears is a real simple opengl program, so the hope is to isolate some
variables and hopefully reproduce the problem.

If glxgears displays a similar issue, I would try to confirm what video
card you have.  Try lspci | grep -i vga

It looks like that system at least thinks you have an nvidia card (based on
Gallium 0.4 on NV46), so if lspci says nvidia, I'd try installing the
proprietary drivers.  I'd then try glxgears again.  Assuming that works I'd
try your application again.

Good luck!

--Bill

On Tue, Apr 19, 2016 at 2:51 PM, Stephen P. Molnar <s.molnar at sbcglobal.net>
wrote:

> First of all, thanks for the reply.  The results of your suggestion are:
>
> comp at AbNormal:~/Downloads$ glxinfo | grep render
> direct rendering: Yes
>     GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer,
>     GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer,
> OpenGL renderer string: Gallium 0.4 on NV46
>     GL_NV_blend_square, GL_NV_conditional_render, GL_NV_depth_clamp,
>     GL_OES_depth_texture, GL_OES_element_index_uint,
> GL_OES_fbo_render_mipmap,
>
> To me this, unfortunately, is a typical message - I have no idea as to the
> meaning.
>
> The catastrophe to which I made mention was two fold; (1)  the CPU fan
> failed which resulted in overheating and (2) the video card failed and was
> replaced.  Unfortunately, the repir tech didn't give me an information
> about the care, but I assume he installed the approp;riate drivers.  I'll
> check into that.
>
>
> On 04/19/2016 11:56 AM, William E. T. wrote:
>
> This is a bit of a long shot, but my first gut reaction was to see if
> there is something wrong with opengl.
>
> In doing a quick search for Avogadro, the screenshots seem to support the
> idea that it might use opengl.
>
> What video card do you have?
> If you run glxinfo | grep render does it show direct rendering?
> What's the OpenGL renderer string?
>
> I'm not sure how much more of a help I'll be, but hopefully that gets you
> started down the right path.
>
> --Bill
>
>
>
> On Tue, Apr 19, 2016 at 11:43 AM, Stephen P. Molnar <
> <s.molnar at sbcglobal.net>s.molnar at sbcglobal.net> wrote:
>
>> I have a rather perplexing problem.
>>
>>
>>
>> My main Linux computer is a two year old (at least the most recent
>> upgrade) 3.5GHz AMD 64 bit octa-core CPU.
>>
>>
>>
>> Due to a rather catastrophic failure I have just upgraded the OS from
>> Debian v-7.2 to Debian v-8.4.0.  I downloaded the DVD-1 and the checksum
>> was correct.  When I burned it to a DVD here were no problems.  Nor, were
>> there any problems with the installation.
>>
>>
>>
>> However, several of the applications that I use on rather a daily basis
>> are acting rather strangely. A case in point is Avogadro, which happens to
>> be a part of the distribution and therefore I didn’t have to compile the
>> source code.  It installed without any warnings or errors.  When I run the
>> application the graphic window is corrupted!   This is also the case with
>> another application, VMD, that I downloaded and installed.  Both
>> application worked without any problems in the previous Debian OS.
>>
>>
>>
>> There are other applications that I run, both in gui’s and terminals that
>> continue to run flawlessly in the new OS.
>>
>>
>>
>> Now, if that isn’t confusing enough, I tried something else.  I installed
>> the Linux VMWare Workstation 12 Player and installed the same Debian 8.4.0
>> in that.  And .  .   . the display problem no longer exists!
>>
>>
>>
>> Obviously, I don’t want to have to run the native Linux Distribution in
>> an VM, but I don’t have the faintest clue as to what is going on, nor any
>> inkling how to fix the problem.
>>
>>
>>
>> Although I have been a computer user since 1960’s I am an Organic Chemist
>> and neither a hardware or software person.
>>
>>
>>
>> I would really be most appreciative of any assistance.
>>
>>
>>
>> Thanks in advance.
>>
>>
>>
>> Stephen P. Molnar, Ph.D.               Life is a fuzzy set
>>
>> www.molecular-modeling.net     Stochastic and Multivariate
>>
>> s.molnar at sbcglobal.net
>>
>> (614)312-7528(c)
>>
>> Skype:  smolnar1
>>
>>
>>
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>>
>
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