[Bug 196197] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=196197

--- Comment #10 from Andreas Brogle (anbro at ok.de) ---
Got the opportunity to test the RV630 XT [Radeon HD 2600 XT] card at an other
mainboard. It works as it should. So the problem seems to be mainboard
specific.

TYAN Thunder h2000M S3992-E
Expansion Slots 
•  Two (2) PCI Express x16 slots (each w/ x8 signal)

Somebody in some forum suspected the radeon driver has a problem with the "x8
signal" and leads to "*ERROR* radeon: ring 0 test failed". Maybe this can help.
But why this problem is araising with kernel 4.11 an newer ?

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