Public bug reported:
When I boot an Ubuntu 16.04 live DVD on a Gateway system with an AMD
A6-5400K APU, with an integrated Radeon HD 7540D graphics adapter, I get
a black screen with no video image. If I boot the live CD with
"nomodeset" added to the kernel parameters, the system boots and shows
the desktop at low resolution. If I look at "dmesg" output, I see these
messages:
ubuntu@ubuntu:~$ dmesg | grep "UMS"
[ 4.827258] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon
module!
[ 39.561534] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon
module!
[ 76.905778] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon
module!
ubuntu@ubuntu:~$
We currently run Ubuntu 14.04.2 on the system with no issue, including
using the "radeon" video driver.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-21-generic 4.4.0-21.37
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: ubuntu 2057 F.... pulseaudio
/dev/snd/controlC0: ubuntu 2057 F.... pulseaudio
/dev/snd/controlC1: ubuntu 2057 F.... pulseaudio
CasperVersion: 1.376
Date: Mon Jul 4 20:08:04 2016
LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Gateway DX4380G
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi
file=/cdrom/preseed/hostname.seed boot=casper quiet splash nomodeset ---
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.
RelatedPackageVersions:
linux-restricted-modules-4.4.0-21-generic N/A
linux-backports-modules-4.4.0-21-generic N/A
linux-firmware 1.157
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/04/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P11-A1
dmi.board.name: DX4380G
dmi.board.vendor: Gateway
dmi.board.version: 1.02
dmi.chassis.type: 3
dmi.chassis.vendor: Gateway
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP11-A1:bd09/04/2012:svnGateway:pnDX4380G:pvr:rvnGateway:rnDX4380G:rvr1.02:cvnGateway:ct3:cvr:
dmi.product.name: DX4380G
dmi.sys.vendor: Gateway
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1598935
Title:
Ubuntu 16.04 won't properly boot due to radeon module issue
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