Bug 26331 - [RV365] X corruption if KMS not enabled when X is started see rainbow stripes box cursor
[RV365] X corruption if KMS not enabled when X is started see rainbow stripes...
Product: DRI
Classification: Unclassified
Component: DRM/Radeon
XOrg git
x86-64 (AMD64) Linux (All)
: low normal
Assigned To: Default DRI bug account
Depends on:
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Reported: 2010-01-29 21:57 UTC by Shawn Starr
Modified: 2010-01-30 07:40 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


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Description Shawn Starr 2010-01-29 21:57:20 UTC
With an RV635 (HD 3650 FireGL mobile) I get corruption on start of X *if* I start system with no radeon loaded and KMS not enabled. 

If I let X load the DRM driver when X starts I will see a stripe rainbow corruption ||||||||||||||||||||||||||||| pattern such as mentioned here. The mouse cursor is square.

I do not know when this started but this may have always been the case since some distributions do not load radeon firmware on start (thus there's no KMS).

I can try to git bisect but with no beginning point or end it might take awhile to find assuming it hasn't always done this.

WORKAROUND: Force load radeon with modeset=1  in initscript prior to X starting fixes this.
Comment 1 Alex Deucher 2010-01-30 07:40:42 UTC
To use kms, radeon must be loaded before starting X.