[Bug 36817] New: RV670 - Kernel fails to enable acceleration when RAM greater than 32-bit limit

[Bug 36817] New: RV670 - Kernel fails to enable acceleration when RAM greater than 32-bit limit

[bugzilla-daemon]

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@lists.freedesktop.org
        ReportedBy: reg@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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[Bug 36817] RV670 - Kernel fails to enable acceleration when RAM greater than 32-bit limit

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=36817

--- Comment #1 from Alex Deucher <agd5f@yahoo.com> 2011-08-17 11:24:21 PDT ---
Could be the same issue as this:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=62fff811d73095bd95579d72f558f03c78f7914a

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[Bug 36817] RV670 - Kernel fails to enable acceleration when RAM greater than 32-bit limit

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=36817

Christopher M. Penalver <christopher.m.penalver@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|NEW                         |RESOLVED
                 CC|                            |christopher.m.penalver@gmai
                   |                            |l.com

--- Comment #2 from Christopher M. Penalver <christopher.m.penalver@gmail.com> ---
Original reporter hasn't responded to downstream information request in 2
years.

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