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On Sun, 22 Jan 2012 12:18:17 -0800 |
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Mark Knecht <markknecht@×××××.com> wrote: |
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|
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> On Sun, Jan 22, 2012 at 12:07 PM, Michael Mol <mikemol@×××××.com> |
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> wrote: |
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> > On Sun, Jan 22, 2012 at 2:30 PM, Mark Knecht <markknecht@×××××.com> |
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> > wrote: |
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> <SNIP> |
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> >> |
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> >> Also, thanks for the pointer to xvidtune. Interesting little app. |
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> >> QUESTION: Do you know how to get the data for each monitor/video |
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> >> card combo? So far I haven't figured out how to tell it Screen2. |
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> >> Seems to only give me Screen0 as best I can tell. |
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> >> |
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> >> I'm a bit nervous to just start trying things. |
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> > |
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> > If you're not using Xinerama, you can specify screens by changing |
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> > $DISPLAY. e.g. :0.0 is screen 0, :0.1 is screen 1, :0.2 is screen |
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> > 2... |
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> > |
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> |
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> I am using xinerama. 3 monitors across 2 NVidia adpaters. Same on my |
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> friends system. |
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> |
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> One interesting thing about this configuration. On his machine he uses |
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> two identical 8400GS adapters. He can run glxgears and is able to move |
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> the gears to any screen and see the gears. He can also use the KDE |
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> features to look at all desktops and application using (Ctrl-F8 I |
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> think) or by dragging his mouse to the upper left corner. |
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> |
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> On my setup I use a GTX465 for screen 0 & 1 but have an NVidia 8400GS |
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> for screen 2. On this system I only see the gears on screen 0 & 1. On |
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> screen 2 I see just a black box and the FPS count skyrockets as the |
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> CPU/GPU aren't really doing anything so it goes through the loop very |
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> fast. Also, on this system the Ctrl-F8 thing mouse to the upper left |
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> corner don't work at all. |
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> |
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> I've assumed that's because I'm using two different NVidia cards. |
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> |
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> - Mark |
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> |
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|
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The docs for the nVidia driver go into this in quite some detail, and |
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it's related to how the nVidia hardware is built plus how the nVidia |
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software works plus how Xinerama works. Basically, not all combinations |
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are supported, especially when you have different "screens" (that's the |
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nVidia concept of a screen, not the X concept) with different |
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resolutions on different GPUs. Or something like that, but I don;t have |
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the docs to have anymore since my last 8600M went to visit the silicon |
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daddy in the sky |
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|
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-- |
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Alan McKinnnon |
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alan.mckinnon@×××××.com |
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