[Expired for xserver-xorg-video-intel (Ubuntu) because there has been no
activity for 60 days.]
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1759584
Title:
displayport MST on intel graphics: slave monitor does not wake up from
suspend
Status in xserver-xorg-video-intel package in Ubuntu:
Expired
Bug description:
configuration:
- PC with Intel HD Graphics 630 (i5-7600)
- DELL U2415 monitor connected to displayport port on PC
(/sys/class/drm/card0/card0-DP-5)
- DELL U2412M connected to DELL U2415 (/sys/class/drm/card0/card0-DP-6)
After a suspend/wake up cycle, the first monitor wakes up but the slave
(U2412M) does not.
When I query /sys/class/drm/card0/card0-DP-5 and
/sys/class/drm/card0/card0-DP-6 when DELLU2412M has failed to wake up, they
both have enabled:enabled and status:connected
i am not sure if this is an xserver issue or a kernel driver issue.
On the one hand i have similar issues using Wayland instead of xserver.
On the other hand, this workaround for a similar issue on nvida works:
"xset dpms force off" which I found here:
https://askubuntu.com/questions/854754/monitor-stays-in-sleep-when-daisy-chained-via-displayport
If this works, it seems to be something under control of the xserver?
Issuing "xset dpms force off" works, produces no logging in /var/log
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xserver-xorg-video-intel 2:2.99.917+git20170309-0ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-37.42-generic 4.13.13
Uname: Linux 4.13.0-37-generic x86_64
.tmp.unity_support_test.0:
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Mar 28 15:28:24 2018
DistUpgraded: 2017-10-25 03:10:03,447 DEBUG Running PostInstallScript:
'./xorg_fix_proprietary.py'
DistroCodename: artful
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation HD Graphics 630 [8086:5912] (rev 04) (prog-if 00 [VGA
controller])
Subsystem: Holco Enterprise Co, Ltd/Shuttle Computer HD Graphics 630
[1297:4038]
InstallationDate: Installed on 2017-02-26 (395 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
MachineType: Shuttle Inc. DH170
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-37-generic.efi.signed
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: Upgraded to artful on 2017-10-25 (154 days ago)
dmi.bios.date: 01/24/2017
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2.06
dmi.board.asset.tag: Default string
dmi.board.name: FH170
dmi.board.vendor: Shuttle Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr2.06:bd01/24/2017:svnShuttleInc.:pnDH170:pvr1.0:rvnShuttleInc.:rnFH170:rvr1.0:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: D
dmi.product.name: DH170
dmi.product.version: 1.0
dmi.sys.vendor: Shuttle Inc.
version.compiz: compiz 1:0.9.13.1+17.10.20170901-0ubuntu1
version.libdrm2: libdrm2 2.4.83-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.8-0ubuntu0~17.10.1
version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.8-0ubuntu0~17.10.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
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