Ok, I _finally_ have an update on this. I put another hard drive into the system, booted an Ubuntu 16.04.1 live DVD I burned today, and installed Ubuntu 16.04.1 on this test hard drive. When I booted the live DVD, the video issue occurred, so I re-booted and specified the "nomodeset" parameter. After doing that, I was able to get the system to boot and was able to successfully install Ubuntu 16.04.1. After the installation completed, the system booted *without* my having to specify the "nomodeset" parameter and the monitor was running at full resolution (1600x900 or something along those lines). So, I thought maybe the issue had been fixed with the 16.04.1 release of Ubuntu. I removed the test hard drive, reinstalled the primary hard drive, booted the system to Ubuntu 14.04.2, and performed an _upgrade_ to Ubuntu 16.04.1. After the upgrade completed, the video issue returned *sigh*. However, I'm now able to get SSH setup so I can collect the requested logs.
I'm confused as to why a fresh install of Ubuntu 16.04.1 works but the upgrade doesn't. From what I understand, the AMD video driver is in the kernel and I would think the 4.4 kernel would be the same, regardless of the system being installed fresh vs being upgraded. As of right now, the primary hard drive has Ubuntu 16.04.1 installed, the video issue is present, and kernel version 4.4-31 (I believe) is running. Once I'm able to get SSH setup and get the logs transferred to another system, I'll attach them to this bug report. Thanks! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1598935 Title: Ubuntu 16.04 won't properly boot due to radeon module issue Status in linux package in Ubuntu: Incomplete Bug description: 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 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! We currently run Ubuntu 14.04.2 on the system with no issue, including using the "radeon" video driver. WORKAROUND: Boot using kernel parameter: nomodeset 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1598935/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
