Well, the workaround would be to use -nouveau with the experimental 3d mesa driver. But YMMV... that is unsupported and is a bit hit-or-miss for some people.
Another thing to try would be to uninstall and re-install -nvidia, which should force a rebuild of the kernel driver. Kind of a long-shot though.
Booting an earlier kernel might be worthwhile just in case it is a kernel ABI inconsistency. Hold down <shift> while booting to see the menu to select previously installed kernel versions.
Well, the workaround would be to use -nouveau with the experimental 3d mesa driver. But YMMV... that is unsupported and is a bit hit-or-miss for some people.
Another thing to try would be to uninstall and re-install -nvidia, which should force a rebuild of the kernel driver. Kind of a long-shot though.
Booting an earlier kernel might be worthwhile just in case it is a kernel ABI inconsistency. Hold down <shift> while booting to see the menu to select previously installed kernel versions.
As far as debugging, you could peruse these general upstream links: www.nvnews. net/vbulletin/ showthread. php?t=58498 nvidia. com/XFree86/ Linux-x86/ 270.30/ README/ knownissues. html
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ftp://download.
I briefly scanned through them myself but didn't spot anything obviously applicable here. Perhaps something relevant would catch your eye though.
Another place to check is the upstream forums: www.nvnews. net/vbulletin/ forumdisplay. php?f=14
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There are a couple reports of black screen / freezing bugs, but the symptoms sound slightly different than yours: www.nvnews. net/vbulletin/ showthread. php?t=159440 www.nvnews. net/vbulletin/ showthread. php?t=159544
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