(I mean KMS, not KVM)
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Radeon module loaded before agpgart
https://bugs.launchpad.net/bugs/468413
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Today I did a few tests more, and finally got best results with KMS
enabled. Now I have working X server with DRI2, 3D acceleration and
really fast switching between VTs and X desktop. 3D performance is worse
than it was before with DRI, but I have no issues when powering down
(previously was: red&
My problem still exists. Reloading radeon module worked fine untill I
powered down machine. Then I had my X server using 100% of CPU and black
screen.
I have tried with EXA and XAA acceleration modes, both with similar results. It
seems to me that I can get accelerated X only when my desktop firs
Thanks Cyril, your workaround works :) (with a small difference: I use
gdm, so I've added instructions for reload radeon driver to my
/etc/init/gdm.conf).
I've also found that extremely high cpu usage was caused by reloading
not only radeon, but also ttm and drm modules. When I reload only radeon
I also noticed that problem. Most times when I start my mythbuntu
machine I have no 3D accelaration:
(WW) RADEON(0): [agp] AGP not available
(EE) RADEON(0): [agp] AGP failed to initialize. Disabling the DRI.
(WW) RADEON(0): Direct rendering disabled
And yes, it is caused by drm and radeon drivers
