I have two Dell U2711 monitors plugged into a HD7750 card. One monitor is connector via DisplayPort, the other via DVI. If I switch the monitors off then on again the monitor connected via DisplayPort displays a blank screen. The DVI monitor works correctly. I have to reboot the machine to get the DisplayPort monitor working again. This problem did not occur with 13.04.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: xserver-xorg-video-radeon 1:7.2.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
Uname: Linux 3.11.0-7-generic x86_64
ApportVersion: 2.12.1-0ubuntu4
Architecture: amd64
Date: Mon Sep 16 20:59:55 2013
InstallationDate: Installed on 2013-09-14 (2 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130902.1)
MarkForUpload: True
SourcePackage: xserver-xorg-video-ati
UpgradeStatus: No upgrade log present (probably fresh install)
---
.tmp.unity.support.test.0:
ApportVersion: 2.12.7-0ubuntu6
Architecture: amd64
CasperVersion: 1.336ubuntu1
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
DistUpgraded: Fresh install
DistroCodename: trusty
DistroRelease: Ubuntu 14.04
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde PRO [Radeon HD 7750] [1002:683f] (prog-if 00 [VGA controller])
Subsystem: PC Partner Limited / Sapphire Technology Device [174b:e213]
LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140110)
MachineType: Gigabyte Technology Co., Ltd. EG45M-DS2H
MarkForUpload: True
Package: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
PackageArchitecture: amd64
ProcKernelCmdLine: file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
ProcVersionSignature: Ubuntu 3.13.0-1.16-generic 3.13.0-rc7
Tags: trusty ubuntu regression reproducible compiz-0.9
Uname: Linux 3.13.0-1-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 11/07/2008
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F4
dmi.board.name: EG45M-DS2H
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF4:bd11/07/2008:svnGigabyteTechnologyCo.,Ltd.:pnEG45M-DS2H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEG45M-DS2H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: EG45M-DS2H
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.50-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.0.1-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.0.1-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.14.5-1ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.907-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu1
xserver.bootTime: Sat Jan 11 10:47:19 2014
xserver.configfile: default
xserver.devices:
input Power Button KEYBOARD, id 6
input Power Button KEYBOARD, id 7
input Logitech USB Laser Mouse MOUSE, id 8
input AT Translated Set 2 keyboard KEYBOARD, id 9
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.14.5-1ubuntu2
xserver.video_driver: radeon
Adrian Johnson, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications-
apport-collect -p xserver-
Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful.
Thank you for your understanding.
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