[Bug 23064] New: AGPMode quirk needed for IBM Thinkpad T40 with Mobility M7 LW

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=23064

           Summary: AGPMode quirk needed for IBM Thinkpad T40 with Mobility
                    M7 LW
           Product: xorg
           Version: 7.4
          Platform: Other
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bryce at canonical.com
         QAContact: xorg-team at lists.x.org


Forwarding this bug from Ubuntu:
https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/353996

[Problem]
Poor performance with Xorg process CPU load between 20%-99%.  Resolved after
setting AGPMode 4 (and a few other things... see xorg.conf).

[Original Report]
Binary package hint: xorg

Hi, well this is my second time, trying to migrate to Jaunty 9.04. But still
having the same problem, the IBM Thinkpad T40 - Video ATI Technologies Inc
Radeon Mobility M7 LW [Radeon Mobility 7500] is not working properly, in fact
it's very slow, and use the Xorg process between 20% to 99% of my CPU.

In Intrepid 8.10 it works perfectly, now I will attach some files than may be
can help.

Please let me know how can I help to fix it.

<later>
Well. Finally I found the way to make works it.

I did change the /etc/X11/xorg.conf file, Now it's working fine

Let me show you: with this configuration the system is working like with
Intrepid.

Section "Device"
 Identifier "Configured Video Device"
 Boardname "ATI Radeon"
 Busid "PCI:1:0:0"
 Driver "radeon"
 Screen 0
 Vendorname "ATI"
 Option "MergedFB" "off"
 Option "AccelMethod" "EXA"
 Option "EXANoComposite" "false"
 Option "FBTexPercent" "50"
 Option "MigrationHeuristic" "greedy"
 Option "DRI" "true"
 Option "GARTSize" "256"
 Option "AGPMode" "4"
 Option "Colortiling" "On"
EndSection

Section "DRI"
 Mode 0666
EndSection

Section "ServerLayout"
 Identifier "Default Layout"
 screen 0 "Default Screen" 0 0
 Option "AIGLX" "true"
EndSection

Section "Extensions"
 Option "Composite" "Enable"
EndSection

Section "Monitor"
 Identifier "Configured Monitor"
EndSection

Section "Screen"
 Identifier "Default Screen"
 Monitor "Configured Monitor"
 Device "Configured Video Device"
EndSection

----
00:00.0 Host bridge: Intel Corporation 82855PM Processor to I/O Controller (rev
03)
00:01.0 PCI bridge: Intel Corporation 82855PM Processor to AGP Controller (rev
03)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M7 LW
[Radeon Mobility 7500]


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