[Bug 20645] New: hd 3650 locks up at startup

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=20645

           Summary: hd 3650 locks up at startup
           Product: xorg
           Version: unspecified
          Platform: Other
               URL: https://bugs.launchpad.net/bugs/341681
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bugzi07.fdo.tormod at xoxy.net
         QAContact: xorg-team at lists.x.org


Created an attachment (id=23832)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=23832)
Xorg.0.log HD 3650

Forwarded from Ubuntu bug https://bugs.launchpad.net/bugs/341681

Starting X just gives a black screen, and the log is filling up with:
(EE) RADEON(0): Idle timed out, resetting engine...

A forum post (from another guy) indicates that removing 2 GB (from 4 GB) of RAM
from the laptop fixes a similar issue with -radeonhd, but this has not been
confirmed by the reporter on -ati.

Another thing that looks contradicting in the log:
(EE) RADEON(0): [dri] RADEONDRIGetVersion failed to open the DRM
[dri] Disabling DRI.
...
(==) RADEON(0): Will attempt to use R6xx/R7xx EXA support if DRI is enabled.
(**) RADEON(0): Using EXA acceleration architecture

He also tried to force XAA in xorg.conf:
(**) RADEON(0): Option "AccelMethod" "XAA"
but it does not take effect. Is it supported?

The driver is built from git 945ccbbd4fa2b65ccdfb23716c178c95b036734d


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