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On 2016-04-13T10:04:51+00:00 Mathieu Malaterre wrote:

launching Xorg fails with the r128 driver.

It seems that newer versions of the r128 xorg driver need to
allocate more memory than the video card actually have 
(in my case, on a Powerbook G3 Pismo, an ATI RAGE with 8MB).

Setting 'Option "NoAccel" "True"' in xorg.conf did not helped.

Reducing the color depth 'DefaultDepth 16' kind of helped.
The X server starts but it only displays garbage (last video buffer
from the tty slowly becoming white).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1607891/comments/0

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On 2016-04-18T17:02:18+00:00 Connor Behan wrote:

The amount of memory it tries to allocate by default is usually higher,
yes. This is because the modes come from RandR which has more capable
cards in mind. However, it should be easy to pick a smaller resolution
in xorg.conf just like you picked a smaller color depth. Hopefully that
can get it back to the same memory consumption that it had before.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1607891/comments/1

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On 2016-07-28T15:14:59+00:00 Fritz Hudnut wrote:

I just discovered this approx. same issue on my Powermac 3,1 while
running U-MATE Xenial for PPC when I added the "proper" r128 video
driver.  After doing that I can see some log files and comments while
the system boots, but arriving at what should be the splash . . . is now
a blackish screen.

With the original install a few months back I think the installer picked
"fbdevhw" as the driver and generally the display was good resolution.
However, the log in screen had issues with low resolution background
image, so I filed a bug report launchpad #1541082.  A few days ago
someone actually tried to help troubleshoot the problem and suggested
that for my video card, the ATI Rage 128 Pro card, the driver should be
"r128" . . . unfortunately after I installed that driver "X" was gone.
I am able to get to a TTY to do stuff, but, as of today I haven't had a
chance to get an xorg.conf file set up to see if I can change the driver
to something else . . . just reporting the problem that occurred with
r128.

Link to LP bug:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1541082

F

Reply at:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1607891/comments/2

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On 2016-07-28T19:29:18+00:00 Connor Behan wrote:

An xorg.conf is required to use this driver, especially with powerpc.
See comment 7 of bug 91421. Hopefully it will work if you make Section
"Screen" and SubSection "Display" that lists reasonable resolutions.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1607891/comments/3

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On 2018-08-10T20:50:41+00:00 Gitlab-migration wrote:

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has
been closed from further activity.

You can subscribe and participate further through the new bug through
this link to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-r128/issues/9.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1607891/comments/5


** Changed in: xorg-server
   Importance: Unknown => Medium

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1607891

Title:
  X doesn't start with r128 driver (PowerMac 3,1) [powerpc]

Status in X.Org X server:
  Unknown
Status in xorg package in Ubuntu:
  New
Status in xserver-xorg-video-r128 package in Debian:
  Confirmed

Bug description:
  X seems to start, but only produces a black display. Happens on a
  PowerMac 3,1 with Rage 128 PRO AGP 4x grapics card. Driver used:
  xserver-xorg-video-r128

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