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Subject: 
Re: Problem with LDView
Newsgroups: 
lugnet.cad
Date: 
Fri, 27 Jun 2008 22:14:01 GMT
Viewed: 
5947 times
  
In lugnet.cad, Travis Cobbs wrote:
In lugnet.cad, Tim David wrote:
I spoke too soon. Although it started working, it then stopped working halfway
through rendering some parts for LPub. From then on it crashed on opening.
I went through the reg keys you listed and the last one (it would be!) IgnoreVBO
seems to have cured it for now.

(I did list that one first for a reason: to me it seemed the most likely
culprit.)

OK.  Peter Bartfai (the person who maintains LDView's Linux port) has had
crashes related to VBO in Linux on an ATI card.  I'm not getting them with my
ATI card (HD 2600 XT) in Windows or Linux, but I know that something is up with
LDView's VBO handling.  I will be trying to track down the problem, but since it
doesn't crash on my machine, it could take awhile.

The good news is that IgnoreVBO shouldn't have too big an effect on performance
(at least when memory usage is set to "High" or "Medium").  Speaking of which,
do you have memory usage set to "High" or "Medium" in LDView's general
preferences?  VBO gets pounded much harder when memory usage is set to "Low".  I
think I'll give that a try to see if I can trigger a crash.

--Travis

Memory usage is set to high, which I presume is the default. For the record I am
using an IBM Thinkpad T42 with an ATI Mobility Radeon 7500. Interestingly I was
speaking to Matt Hamann yesterday and he was having issues with LDView too, and
he has an IBM Thinkpad T30 with the same graphics chipset so it looks like there
is possibly a problem with the way the driver is written.

Tim



Message is in Reply To:
  Re: Problem with LDView
 
(...) (I did list that one first for a reason: to me it seemed the most likely culprit.) OK. Peter Bartfai (the person who maintains LDView's Linux port) has had crashes related to VBO in Linux on an ATI card. I'm not getting them with my ATI card (...) (16 years ago, 27-Jun-08, to lugnet.cad)

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