PPC Corrupt display ATI X800 XT

[Scott Thompson]

System: PowerMac 7,2
Video card: ATI X800 XT
Display: 1440x900

With this video card the display is corrupted on approximately 9 out of 10 attempts to boot. On one boot out of 10 it works. When the display shows corruption it is in the form of a distorted checkerboard. The machine apparently locks up as the fans eventually come fully on.
The appended parameters on yaboot are:
radeon.agpmode=-1 video=offb:off video=radeonfb:off radeon.modeset=1

This is the same system as in bug #1605413 except I changed out the video card.

This card also does not work when trying to boot Ubuntu-mate 16.10 Alpha 1

What I expected to happen:
The system boots to a normal desktop.

What happened instead:
Rarely do I get to a desktop. Usually the display is corrupted and the system locks up.

Ubuntu Mate 16.04
lsb_release -rd:

Description: Ubuntu 16.04.1 LTS
Release: 16.04

[Scott Thompson (scottt4)]

I see that I made a mistake and reported this against xserver-xorg-video-nouveau. I think it should be xserver-xorg-video-radeon instead.

[penalvch (penalvch)]

Scott Thompson, thank you for reporting this and helping make Ubuntu better.

Could you please run the following command once from a terminal by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information:
apport-collect -p xorg 1609135

When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]