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Thread ID: 118334 2011-05-31 00:53:00 3D acceleration not working in Ubuntu 11.04 Agent_24 (57) Press F1
Post ID Timestamp Content User
1205851 2011-06-03 01:51:00 Well this is really fun, today my 3D is not working again, and today my TV (which still isn't plugged in) is also not detected.
I wonder if the two are related? I fail to see how, unless it's some kind of bug. Seems pretty weird.
Agent_24 (57)
1205852 2011-06-03 03:14:00 That's really bizarre. That said, this is Ubuntu - which in my opinion is crap at the best of times :groan:. The gallium / r300 driver is the correct one - it's what you want to be using for hardware acceleration.

Can you get a checksum of that library while it's broken, and the sum of the same file when working, and compare the two?

I have to admit I'm somewhat mystified - if you're not changing it, this certainly shouldn't be changing on its own. Can you reproduce the change?
Erayd (23)
1205853 2011-06-06 04:43:00 Well I've played around with cables attached, not attached, and the only thing that seems consistent is that 3D Acceleration and TV Detection go hand-in-hand.

If the TV is detected (doesn't matter if it's plugged in or not) then 3D\Gallium is enabled and works.
If it doesn't detect the TV then 3D also falls back to software mode.

Also it seems TV detection (or not) only works properly on a cold boot, not a restart etc.


On the up-side, the TV-out actually works in this version of Ubuntu (previous versions detected the TV but wouldn't display anything on it)

Will get those checksums next time it's not working...
Agent_24 (57)
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