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I haven't tried this myself, but I haven't heard of this problem either. |
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I would try out the official NVIDIA Linux forums: |
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http://www.nvnews.net/vbulletin/forumdisplay.php?s=&forumid=14 |
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You'll find the most information there and possibly even hear from a |
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developer. |
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|
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Thanks, |
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Kris Kersey (Augustus) |
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LinuxHardware.org Site Manager |
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augustus@×××××××××××××.org |
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AIM: Augustus22 |
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|
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On Fri, 30 Nov 2007, Hamish wrote: |
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|
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> |
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> Hi all. |
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> |
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> I've got an amd64 install of gentoo, and I'm using the nvidia drivers package |
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> version x11-drivers/nvidia-drivers-100.14.19 compiled with gcc 4.2.0 and |
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> kernel 2.6.22-gentoo-r8. This is with a PNY 8600GT 256MB card (PCI-E 16x) |
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> (540MHz core, the overclocking doesn't seem to work as advertiosed with |
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> nvidia... The card just refuses to overclock... i.e. ignores any attempt). |
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> |
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> I have a small openGL program that takes 32 png's, loads them as textures and |
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> displays them on the screen, while performing FSAA at mode 7 (16x), set by |
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> using the __GL_FSAA_MODE=7 env variable. |
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> |
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> I have two screens... One 1280x1024 and one 1680x1050. Both at 60Hz, and i'm |
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> using TwinView. |
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> |
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> Starting my app at a window size of 1000x900 is fine. App runs with almost 0% |
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> CPU (AMD X2 4800+), and at 50FPS (The display is drawn ising glTimerFunc at |
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> 20ms intervals). All fine and dandy. |
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> |
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> But if I maximise the window to the full 1280x1024 resolution on the small |
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> monitor or 1680x1050 resolution on the big monitor, suddenly the application |
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> starts using 100% CPU. The CPU increase seems to happen when either the width |
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> or height goes above a certain value (Different for X & Y). |
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> |
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> Anyone else seen this? Disabling FSAA means I don't hit the problem, but then |
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> the display just doesn't look nice & smooth any more... Having fewer objects |
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> on the screen seems to make a difference too... There's no errors anywhere... |
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> |
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> I've tried installing the nvidia performance stuff (v2.1) but it doesn't |
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> compile OOTB. So that'll take some more investigation, but maybe someone else |
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> has been something? I wasn't aware that the nvidia drivers had a limit on |
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> either the resolution or number of textures that could be FSAA'ed in |
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> hardware.. Does it? |
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> |
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> TIA |
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> Hamish. |
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> |
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> |
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> -- |
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> gentoo-amd64@g.o mailing list |
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> |
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> |
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-- |
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