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Thread: System Frame-Buffer Bus Proposed For Linux

  1. #1
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    Default System Frame-Buffer Bus Proposed For Linux

    Phoronix: System Frame-Buffer Bus Proposed For Linux

    A System Frame-buffer Bus has been proposed for the Linux kernel. The focus of this new bus is to address the problem of many different graphics drivers, e.g. DRM and FBDEV, attempting to access the graphics card's frame-buffer and no clean way for addressing control of it...

    http://www.phoronix.com/vr.php?view=MTMwNDc

  2. #2
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    I thought that's what KMS was for but I guess that was only half the problem.

  3. #3
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    Sounds like a step closer to being able to have a mixed set of GPU's in a system.

  4. #4
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    Quote Originally Posted by Chewi View Post
    I thought that's what KMS was for but I guess that was only half the problem.
    dvdhrm would have to confirm but this MIGHT be the solution to "KMSCON + Plymouth" problem I posted about in the "Linux Kernel Console is being killed off" thread.

    Basically KMSCON wants exclusive access (and is given it since it ran first) then running plymouth --show-splash, plymouth wants exclusive access but can't get it cuz KMSCON has it, and theres no easy way to unload KMSCON, bring up plymouth, eventually unload plymouth, and then reload KMSCON

  5. #5
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    Why not just drop FBDEV, then we only have DRM.
    With only one driver we don't need any extra infrastructure for switching between drivers.

  6. #6
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    Quote Originally Posted by Chewi View Post
    I thought that's what KMS was for but I guess that was only half the problem.
    KMS is also the problem, given the case you boot with EFI-Stub-support. This really needs to be done!

  7. #7
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    Aug 2012
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    Would this help in being able to switch/reload graphics drivers "on the fly" sometime?

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