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On 03/05/2015 02:25 PM, walt wrote: |
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> Downgrading Virtualbox to 4.3.20-r1 fixes the problem on one ~amd64 |
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> machine but, of course, not the other one <sigh>. |
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|
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For reasons I don't know, the gentoo devs split the "guest-additions" |
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into two parts: they put the vboxvideo kernel module into the gentoo |
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xf86-video-virtualbox package, and the vboxguest+vboxsf kernel modules |
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into the virtualbox-guest-additions package. |
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|
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Anyway, starting with a vbox gentoo snapshot from Mar 3 (before the |
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update to vbox-4.3.24) I upgraded only the virtualbox-guest-additions |
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(not the xf86-video-virtualbox package) and found that everything still |
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works normally. |
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|
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I then upgraded the xf86-video-virtualbox package and discovered that |
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3D video acceleration was broken, just as before. |
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|
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I then downgraded the xf86-video-virtualbox package to 4.3.20 (leaving |
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the virtualbox-guest-additions at 4.3.24) and found the 3D acceleration |
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working normally again. |
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|
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That clearly implicates the vboxvideo.ko kernel module as the cause of |
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the breakage, I think. |
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|
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Opinions/comments are most welcome. |