Xorg + PCI card = INVALID IO ALLOCATION

[Risto Suominen]

Binary package hint: xserver-xorg

I had 6.06 LTS running fine on an OldWorld Power Mac G3/233 Beige (rev B). Then I decided to put in a USB PCI card: X would not start. It complained about INVALID IO ALLOCATION, it thought it should use an area allocated already by the USB card.

It's hard to say the package for sure: xserver-xorg, xserver-xorg-core, xserver-xorg-driver-ati, ...

The machine has Grackle PCI bus and ATI 3D Rage II+ video controller.

The problem didn't exist in an earlier Ubuntu, 4.10 I think. I have it running on another similar machine, rev A this time, but I believe the differences don't matter and that the video chip is the same.

[Risto Suominen (risto-suominen)]

Here is the Xorg log.

[Risto Suominen (risto-suominen)]

Did some more testing: as the frame buffer text mode is distorted on these machines, it may be a bad idea to try using the fbdev driver for X. But it may give a hint. I tried it: well, the whole system hangs. To be more precise: X just dies, leaving the attached log. The screen remains black. And trying to start another (via ssh) results in a hang, where the machine still answers to ping but ssh login stops working. Restaring the machine leads into this state, as the system tries to restart X a few times. This is probably a symptom of this same bug, which makes me think that it is not in the ati driver, but somewhere in the core.