Submit #2230 ยป 0001-man-4-drm-add-note-to-sysctl-vm.dma_reserved-tunable.patch
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.Xr sysctl 8
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node
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.Ar hw.dri.0.debug .
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.Pp
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Set vm.dma_reserved to a proper high value (default is 16m)
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in /boot/loader.conf if Xorg acceleration initialization fails
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(dmesg shows 'contigmalloc_map: failed size ...')
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.Sh SEE ALSO
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.Xr Xorg 1 ,
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.Xr agp 4 ,
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