[Bug 36817] New: RV670 - Kernel fails to enable acceleration when RAM greater than 32-bit limit
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue May 3 16:57:01 PDT 2011
https://bugs.freedesktop.org/show_bug.cgi?id=36817
Summary: RV670 - Kernel fails to enable acceleration when RAM
greater than 32-bit limit
Product: DRI
Version: unspecified
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Radeon
AssignedTo: dri-devel at lists.freedesktop.org
ReportedBy: reg at achart.me.uk
I sure hope I'm in the right place...
Using a Radeon HD3870 that works fine under Windows (64-bit). After a supposed
initial success using a pre-release version of KMS drivers (which may be a red
herring), I have been unable to get 3D acceleration on any Ubuntu release from
Lucid, unless I use a non-PAE kernel (I have 4GB RAM).
My Ubuntu bug ticket (including logs) is here:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/574884
Another bug that looks similar:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/657576
A similar looking bug with a similar workaround (which I'll shortly try on
mine) on SUSE: http://web.archiveorange.com/archive/v/wmeLDauZzOL6SFQx1uKY
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