Recently I've bought new laptop Lenovo Y580. It has two GPUs: Intel Graphics HD 4000 and nVidia GTX 660M (driver 184.108.40.2067). By default the system assigns GPUs automatically to the applications - in this case it was Intel Graphics HD 4000. When I change the graphic card to be used with acad to nVidia, I get following error:
It works with the Intel GPU. I'm running Windows 7 Home Premium (64 bit version), I've tried Autocad 64bit 2013 and Autocal Civil 3D 64 bit and it happened in both cases. Could anyone advise me how to run it with nVidia?
Thanks and regards
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One of the first things I would try is to go into BIOS and disable the Intel on-board graphics or make the nVidia card the primary ... however your BIOS works.
A second thought ... have you tried the nVidia control panel to set the nVidia card per program. I can't remember the exact sequence but try looking there.
Yup, I've tried assigning nVidia to Autocad only as well as default for all programs. I did it before and after the instalation of acad. None of them seems to work.When I go to acad 3d performance settings and view the log, it shows Intel GPU only.
Just an off-hand shot but you may already know that. .... found this on a tom's hardware forum .... not the exact same above board card but I'm only looking for disabling the Intel graphics.
I fixed it by fiddling with the nvidia controller and plugging in the power adapater. I guess it only works when the power adapter is on
Perhaps unistalling the drivers for the Intel embedded graphics might work but be cautious or you may find yerself with no graphics at all.
Other than that, I'm outta ideas.
I CAN run acad with nVidia, but it shows me the mentioned error :/ I think the problem might be that acad during instalation sets up for Intel GPU and it doesn't looks like it can be changed afterwards Anyway thanks for your suggestions drjohn.
You might want to try updating your BIOS (carefully, of course). Check the list of things changed or updated - one of those might include a new option to disable on-chip video hardware.
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