[Bug 23063] New: AGPMode quirk needed for HP Omnibook 6200

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=23063

           Summary: AGPMode quirk needed for HP Omnibook 6200
           Product: xorg
           Version: 7.4
          Platform: x86 (IA32)
        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 patch from this Ubuntu bug:
https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/146303

[Problem]
Freeze when power supply connected.  Goes away if AGPMode set to "1".

[Original Report]
Laptop: HP Omnibook 6200
display adapter: VGA compatible controller: ATI Technologies Inc Radeon
Mobility M6 LY

My laptop freezes when I connect it to power supply. It doesn't freeze
immediately, but after few seconds. Mouse is moving but I cannot click anthing
and I cannot restart X-server or switch to other virtual console. This doesn't
happen if I switch to use vesa-driver as display driver.

Everything was working fine with Hardy alpha, but after latest updates this
issue appeared again.
It seems that cpu frequency scaling with dri enabled is making computer freeze.
If I remove powernowd then computer works fine with dri enabled.

Just testing Jaunty 9.04 alpha-2 with my Omnibook 6200. Problem still exists,
but I can make DRI and Powernowd work together by using p4-clockmode as advised
in bug #80459. Should this be enabled by default for Pentium-4 laptops? This
same hack works in Intrepid also.
I have installed latest Ubuntu releases with battery power only, and then make
Powernowd use p4-clockmode, so I can use this computer with power supply also.

I am unable to ssh to machine when it is freezed. I don't see anything
intresting in logs after freeze and reboot. Latest updates seems to change
kernel power save features and my fix does not work anymore. This machine does
not freeze with Mandriva 2009, but I think Mandriva does not use Powernowd.
Maybe this bug is related to this
https://bugs.launchpad.net/ubuntu/+source/powernowd/+bug/48792.
Currently I am using Debian Lenny on this machine. Debian also suffers from
this bug, but only if I boot with power supply connected.

Installed Jaunty to Omnibook vt6200. With default settings machine freezes when
connecting or disconnecting power supply. I browsed some bug reports with this
error and noticed this:
http://webui.sourcelabs.com/kernel/issues/2754

I then added to xorg.conf, devices section: Option "AGPMode" "1" . After this
everything seems to be working. There seems to be problems with this laptop
chipset.


[from Xorg.0.log]
(==) RADEON(0): Using AGP 4x
(II) RADEON(0): [agp] Mode 0x1b000207 [AGP 0x10b9/0x1671; Card 0x1002/0x4c59]


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