You have been subscribed to a public bug:
CID: 201404-14986 Dell Precision M2800
There is no desktop on the external monitor in extened mode through HDMI /
D-Sub port.
But you can see your cursor there.
External monitor works nomally with Mirror / External Only mode.
Steps:
1. Install 14.04.1 + update (3.13.0-37) + fglrx-updates (2:13.350.1-0ubuntu2)
2. Connect a HDMI / VGA cable to an external monitor
Expected result:
* Display should work with the external monitor in extended mode.
Actual result:
* Black screen on the external screen, the only thing you can see is the cursor.
ubuntu@201404-14986:~$ xrandr -q
Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 8192 x 8192
eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis)
344mm x 193mm
1920x1080 60.1*+ 40.0 59.9
1680x1050 60.0 59.9
1600x1024 60.2
1400x1050 60.0
1280x1024 60.0
1440x900 59.9
1280x960 60.0
1360x768 59.8 60.0
1152x864 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis)
531mm x 299mm
1920x1080 60.0*+ 50.0 59.9
1920x1080i 60.1 50.0 60.0
1680x1050 59.9
1440x900 59.9
1280x960 60.0
1280x800 59.9
1152x864 75.0
1280x720 60.0 50.0 59.9
1440x576i 50.1
1024x768 70.1 60.0
1440x480i 60.1 60.1
800x600 60.3 56.2
720x576 50.0
720x480 60.0 59.9
640x480 66.7 60.0 59.9
720x400 70.1
DP1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI3 disconnected (normal left inverted right x axis y axis)
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-37-generic 3.13.0-37.64
ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
Uname: Linux 3.13.0-37-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: ubuntu 1776 F.... pulseaudio
ubuntu 3242 F.... pulseaudio
/dev/snd/controlC0: ubuntu 1776 F.... pulseaudio
ubuntu 3242 F.... pulseaudio
CRDA:
country TW:
(2402 - 2472 @ 40), (3, 27)
(5270 - 5330 @ 40), (3, 17), DFS
(5735 - 5815 @ 40), (3, 30)
CurrentDesktop: Unity
Date: Thu Oct 9 04:56:04 2014
HibernationDevice: RESUME=UUID=404890af-28cf-4569-a49d-10fc2fcf1cf9
InstallationDate: Installed on 2014-10-09 (0 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: Dell Inc. Precision M2800
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-37-generic.efi.signed
root=UUID=c670a1f7-2c9c-4fd2-9d34-a750d36d46b9 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-37-generic N/A
linux-backports-modules-3.13.0-37-generic N/A
linux-firmware 1.127.7
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/28/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A01
dmi.board.name: 0CYT5F
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA01:bd04/28/2014:svnDellInc.:pnPrecisionM2800:pvr01:rvnDellInc.:rn0CYT5F:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Precision M2800
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: fglrx-installer-updates (Ubuntu)
Importance: Medium
Assignee: Anthony Wong (anthonywong)
Status: New
** Tags: 201404-14986 amd64 apport-bug blocks-hwcert taipei-lab trusty
--
AMD Mars XTX [Radeon HD 8790M] [1002:6606] Black screen on external display
(extended mode) with fglrx
https://bugs.launchpad.net/bugs/1379237
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Packages, which is subscribed to fglrx-installer-updates in Ubuntu.
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