Black screen with iMac 2011 and ATI Radeon 6970M
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Incomplete
|
Medium
|
Unassigned |
Bug Description
Using Ubuntu 16.04 through 17.10, when I boot the screen is black, ping and ssh to the host does not work, and the fan is running. Same problem with kernel 4.14 and 4.15RC7.
WORKAROUND: Use kernel parameter:
nomodeset
---
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
DistroRelease: Ubuntu 17.10
HibernationDevice: RESUME=
InstallationDate: Installed on 2018-01-15 (0 days ago)
InstallationMedia: Ubuntu-Server 17.10 "Artful Aardvark" - Release amd64 (20180108.1)
MachineType: Apple Inc. iMac12,2
Package: linux (not installed)
ProcEnviron:
LANGUAGE=
TERM=xterm-
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageV
linux-
linux-
linux-firmware 1.169.1
Tags: artful
Uname: Linux 4.13.0-25-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 08/08/17
dmi.bios.vendor: Apple Inc.
dmi.bios.version: IM121.88Z.
dmi.board.name: Mac-942B59F5819
dmi.board.vendor: Apple Inc.
dmi.board.version: iMac12,2
dmi.chassis.type: 13
dmi.chassis.vendor: Apple Inc.
dmi.chassis.
dmi.modalias: dmi:bvnAppleInc
dmi.product.family: iMac
dmi.product.name: iMac12,2
dmi.product.
dmi.sys.vendor: Apple Inc.
affects: | launchpad → linux (Ubuntu) |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | Confirmed → Incomplete |
description: | updated |
tags: | added: kernel-bug-exists-upstream-4.15-rc7 xenial zesty |
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1743427
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.