apport information
** Description changed:
After upgrading from Ubuntu 14.04 to 16.04, the screen will stay black
after GRUB (backlight is on) when booting with the new 4.4 kernel
(linux-image-4.4.0-57-generic). Booting with the old 3.14 kernel will
make the screen work again.
This is on a BIOSTAR A780L mainboard, with the monitor connected via
DVI.
"ubuntu-bug linux" tells me that I appear to run a mainline kernel and
cannot report anything (obviously, as the screen doesn't work if I boot
the 16.04 kernel).
$ cat /proc/version_signature > version.log
cat: /proc/version_signature: No such file or directory
1) The release of Ubuntu you are using, via 'lsb_release -rd' or System
-> About Ubuntu
$ lsb_release -rd
Description: Ubuntu 16.04.1 LTS
Release: 16.04
2) The version of the package you are using, via 'apt-cache policy
pkgname' or by checking in Software Center
$ apt-cache policy linux-image-4.4.0-57-generic
linux-image-4.4.0-57-generic:
Installed: 4.4.0-57.78
Candidate: 4.4.0-57.78
Version table:
*** 4.4.0-57.78 500
500 http://de.archive.ubuntu.com/ubuntu xenial-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu xenial-security/main amd64
Packages
100 /var/lib/dpkg/status
3) What you expected to happen
Screen doesn't stay black
4) What happened instead
Screen stays black
---
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
CurrentDesktop: KDE
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
PackageArchitecture: amd64
Tags: xenial
Uname: Linux 3.14.79-031479-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-09-24 (88 days ago)
UserGroups: adm admin cdrom dialout lpadmin nopasswdlogin plugdev sambashare
_MarkForUpload: True
+ ---
+ ApportVersion: 2.20.1-0ubuntu2.4
+ Architecture: amd64
+ AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p',
'/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0',
'/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
+ DistroRelease: Ubuntu 16.04
+ HibernationDevice: RESUME=UUID=dbcee44e-5c4b-4630-a837-f819f42e91eb
+ IwConfig:
+ lo no wireless extensions.
+
+ eth0 no wireless extensions.
+ MachineType: BIOSTAR Group A780L
+ Package: linux (not installed)
+ ProcFB: 0 radeondrmfb
+ ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.8.0-32-generic
root=UUID=da4d032c-4aef-42d0-bcf6-1cf98904be02 ro quiet splash vt.handoff=7
+ ProcVersionSignature: Ubuntu 4.8.0-32.34~16.04.1-generic 4.8.11
+ PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
+ RelatedPackageVersions:
+ linux-restricted-modules-4.8.0-32-generic N/A
+ linux-backports-modules-4.8.0-32-generic N/A
+ linux-firmware 1.157.6
+ RfKill:
+
+ Tags: xenial
+ Uname: Linux 4.8.0-32-generic x86_64
+ UpgradeStatus: Upgraded to xenial on 2016-09-24 (89 days ago)
+ UserGroups: adm admin cdrom dialout lpadmin nopasswdlogin plugdev sambashare
+ _MarkForUpload: True
+ dmi.bios.date: 07/20/2010
+ dmi.bios.vendor: American Megatrends Inc.
+ dmi.bios.version: 080014
+ dmi.board.asset.tag: To Be Filled By O.E.M.
+ dmi.board.name: A780L
+ dmi.board.vendor: BIOSTAR Group
+ dmi.chassis.asset.tag: None
+ dmi.chassis.type: 3
+ dmi.chassis.vendor: BIOSTAR Group
+ dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr080014:bd07/20/2010:svnBIOSTARGroup:pnA780L:pvr:rvnBIOSTARGroup:rnA780L:rvr:cvnBIOSTARGroup:ct3:cvr:
+ dmi.product.name: A780L
+ dmi.sys.vendor: BIOSTAR Group
** Attachment added: "AlsaInfo.txt"
https://bugs.launchpad.net/bugs/1651910/+attachment/4795124/+files/AlsaInfo.txt
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https://bugs.launchpad.net/bugs/1651910
Title:
radeon: black screen after upgrade from 14.04 to 16.04 on RS780
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