Radeon KMS msi issues.

Neven Klacar nklacar at gmail.com
Wed Feb 15 23:48:45 PST 2012


I was investigating the above bug, and for some reason radeon x1400 cards
that use msi based interrupts, are conflicting in some way with the msi
interrupts used by the sound card and wifi chip. Doing anything display
intensive will drop the wifi connection and make really choppy sound.

How can I disable msi on the radeon driver? Can it be turned off/on via a
conf file? I tried echo 0 to msi_bus in /sys/bus/pci/devices/**/ but it
didnt work.

If I have to recompile the source where do I disable it?

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