Public bug reported:
I'm running Ubuntu GNOME 16.04 on a laptop (HP Elitebook Folio 1020 G1
SE) with an external display (DELL U2713H) via HDMI, and I cannot
suspend displays with this configuration kept.
1. I type Win+L to lock the session
2. Laptop shows locked screens, then all display outputs get suspended
3. External display detects no input signal and enters power saving mode
4. Laptop somehow detects the external display being disconnected, wakes up and
resizes the desktop to single-display configuration (2560x1440)
5. External display wakes up on input signal from the laptop
6. Laptop detects the external display being connected, resizes the desktop to
dual-display configuration (5120x1440)
7. Loop over 2-6
On Ubuntu GNOME 15.10 it worked as expected, after step 3 all displays
kept suspended until I touched my keyboard or mouse.
Related journalctl output:
Apr 24 15:46:38.769809 elitebook /usr/lib/gdm3/gdm-x-session[2481]: (II)
intel(0): resizing framebuffer to 2560x1440
Apr 24 15:46:39.736745 elitebook /usr/lib/gdm3/gdm-x-session[2481]: (--)
intel(0): HDMI max TMDS frequency 245000KHz
Apr 24 15:46:39.738189 elitebook /usr/lib/gdm3/gdm-x-session[2481]: (--)
intel(0): HDMI max TMDS frequency 245000KHz
Apr 24 15:46:39.739782 elitebook /usr/lib/gdm3/gdm-x-session[2481]: (II)
intel(0): resizing framebuffer to 5120x1440
Apr 24 15:46:39.754049 elitebook /usr/lib/gdm3/gdm-x-session[2481]: (II)
intel(0): switch to mode 2560x1440@60.0 on HDMI2 using pipe 0, position (2560,
0), rotation normal, reflection none
Apr 24 15:46:40.113202 elitebook /usr/lib/gdm3/gdm-x-session[2481]: (II)
intel(0): switch to mode 2560x1440@60.0 on eDP1 using pipe 1, position (0, 0),
rotation normal, reflection none
Apr 24 15:46:40.935143 elitebook /usr/lib/gdm3/gdm-x-session[2481]: (--)
intel(0): HDMI max TMDS frequency 245000KHz
Apr 24 15:46:41.091506 elitebook /usr/lib/gdm3/gdm-x-session[2481]: (--)
intel(0): HDMI max TMDS frequency 245000KHz
Apr 24 15:46:41.301093 elitebook gnome-session[1175]:
(gnome-settings-daemon:1267): color-plugin-WARNING **: no xrandr-Dell Inc.-DELL
U2713H-C6F0K36A059L device found: Failed to find output xrandr-Dell Inc.-DELL
U2713H-C6F0K36A059L
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
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
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: GNOME
Date: Sun Apr 24 14:56:37 2016
DistUpgraded: 2016-04-24 05:15:01,728 DEBUG Running PostInstallScript:
'./xorg_fix_proprietary.py'
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
virtualbox, 5.0.18, 4.2.0-35-generic, x86_64: installed
virtualbox, 5.0.18, 4.4.0-21-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation Broadwell-U Integrated Graphics [8086:161e] (rev 09)
(prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Broadwell-U Integrated Graphics
[103c:2271]
MachineType: Hewlett-Packard HP EliteBook Folio 1020 G1 SE
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed
root=UUID=04378afb-28ef-43df-97a5-128f1cc8631e ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to xenial on 2016-04-23 (0 days ago)
dmi.bios.date: 03/09/2015
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: M77 Ver. 01.05
dmi.board.name: 2271
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 91.4C
dmi.chassis.asset.tag: CNU52107SW
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvrM77Ver.01.05:bd03/09/2015:svnHewlett-Packard:pnHPEliteBookFolio1020G1SE:pvrA3009DD18303:rvnHewlett-Packard:rn2271:rvrKBCVersion91.4C:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook Folio 1020 G1 SE
dmi.product.version: A3009DD18303
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20160325-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Sat Apr 16 17:41:09 2016
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 5167
vendor SHP
xserver.version: 2:1.17.2-1ubuntu9.1
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug ubuntu xenial
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1574175
Title:
Unable to suspend displays when external display connected
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