chris_o Posted December 8, 2008 Share Posted December 8, 2008 hi guys, I'm new here, and I'm getting frustrated with what I'm experiencing now with my autocad 2009 and now needs help. Whenever i zoom in (like zooming as much as it can), most of the diagonal lines are acting weird such as vanishing yet clickable, "ghost" lines appears (visible but not clickable), becomes a broken line, line stretching and etc. The Regen command doesn't help here. it was not like that before, and i didn't even touched the options. thx in advanced for those who will help^^ specs: proc: c2q @ 2.5ghz mem: 4 gig (3 gig) gpu: ati hd 4870 512mb ddr5 OS: vista home premium btw, I'm trying to upload a video of it, explaining excatly what happening is kinda hard. Quote Link to comment Share on other sites More sharing options...
MaxwellEdison Posted December 8, 2008 Share Posted December 8, 2008 First, welcome to the forums. Second, are these just regular lines or another type of element...dimensions, etc.? Is this happening on multiple drawings, or multiple machines? If it is only effecting your machine it may be an issue with the GFX driver. Check AutoCADs communication center to see if any new drivers have been made available for your card, also see if you have the latest service packs installed. Quote Link to comment Share on other sites More sharing options...
chris_o Posted December 8, 2008 Author Share Posted December 8, 2008 First, welcome to the forums. thx Second, are these just regular lines or another type of element...dimensions, etc.? yes, regular lines, happens on any drawing I open. but the thing is it was working perfectly yesterday then suddenly acted strange today... but still, imma do what you advised ^_^ Quote Link to comment Share on other sites More sharing options...
novator Posted January 14, 2009 Share Posted January 14, 2009 I have exactly the same problem. The nearly I zoom, the larger displacement of some lines (or polylines) are. And weird ghost lines appear. AutoCAD 2009 Update 2 doesn't repair that problem. If I change view>visual styles>2D wireframe to 3D wireframe, I can zoom nearer (little better) for this problem to apear. Anybody with solution? Quote Link to comment Share on other sites More sharing options...
wannabe Posted January 15, 2009 Share Posted January 15, 2009 Look in tools>options and the level of graphical detail that can be applied to certain objects. I forget which tab, probably display. Hope this helps. Quote Link to comment Share on other sites More sharing options...
Mrskotnjak Posted January 16, 2009 Share Posted January 16, 2009 Turn off Hardware acceleration under Tools\Options\System\Performance settings\Manual tune. This should solve your problems, it did to me:D Quote Link to comment Share on other sites More sharing options...
novator Posted January 16, 2009 Share Posted January 16, 2009 Turn off Hardware acceleration under Tools\Options\System\Performance settings\Manual tune. This should solve your problems, it did to me:D Finally, weirdest acad problem SOLVED!!! Thank you Mrs. Kotnjak! Quote Link to comment Share on other sites More sharing options...
novator Posted January 20, 2009 Share Posted January 20, 2009 Under Tools > Options > System > Performance Settings > Manual Tune turn Enhanced 2D Performance to OFF other accelerations can be enabled! Quote Link to comment Share on other sites More sharing options...
hramih Posted February 6, 2009 Share Posted February 6, 2009 I been suffering with this problem for too long, Now is solved. Thanks guys Quote Link to comment Share on other sites More sharing options...
Chekie Posted April 24, 2009 Share Posted April 24, 2009 I had this problem as well... thought it was a display card error... was using X850 XE PE, then upgraded slightly to a HD4550.. and then HD4650.. well, didn't do anything. I originally turned off 3D acceleration, but then performance suffered quite a bit. In the end, what worked for me was that whilst keeping Direct3D enabled, and all the gubbins turned on, you can turn OFF the Adaptive Degradation, and then the lines come out ok again! Not actually sure what adaptive degradation does when i'm working in 2D models most of the time, not actually sure if the performance needs to be adaptively degraded at any time.. but anyway, that worked for me, and now i can keep my nice Direct3D performance enhancements. wonder if the GeForce cards have this problem too? Quote Link to comment Share on other sites More sharing options...
rkent Posted April 24, 2009 Share Posted April 24, 2009 I can stop this on my machine by either turning off Hardware Acceleration, or not using TTF's. Quote Link to comment Share on other sites More sharing options...
hramih Posted April 24, 2009 Share Posted April 24, 2009 I did exactly what you do, turn off the degradation and turn on the Direct 3D, but the lines went back to the previous wrong performance when I zoom in. I really want to have the 3D enhancements but I work a lot in 3D wireframe and I can’t do it if the lines go crazy every time I zoom. Thanks for the tip anyway Quote Link to comment Share on other sites More sharing options...
Chekie Posted April 24, 2009 Share Posted April 24, 2009 it seems that we all appear to be affected by a glitch in the AutoCAD 3D engine at certain degrees of ******ed-up-ness... some people find certain things work that other might not. i think it is clear that turning off direct3D is a sure way to get rid of that zoom problem, the downturn is that the performance does suffer quite a lot. the other alternative would be to install back a previous version of AutoCAD.... never seemed to have this problems on earlier versions Quote Link to comment Share on other sites More sharing options...
omidj Posted August 28, 2010 Share Posted August 28, 2010 Thank you Mrs. Kotnjak Quote Link to comment Share on other sites More sharing options...
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