** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
** Tags removed: needs-reverse-bisect
** Tags added: reverse-bisect-done
** Tags added: cherry-pick
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https://bugs.launchpad.net/bugs/1621265
Title:
lose monitor during boot up if I don't add 'nomodeset' to kernel
options
Status in linux package in Ubuntu:
Triaged
Bug description:
If I connect my monitor to my computer with a VGA cable my monitor
goes blank, complains of no video signal, then goes to sleep as soon
as the kernel attempts to enable mode setting.
Turning the monitor off and back on does not help, unplugging the VGA
cable and connecting the DVI cable does not help. I have to hit
'Ctrl'+'Alt'+'Del' and wait for the computer to restart or hit the
power button and wait for the computer to shutdown.
If I connect the monitor to the computer with a DVI cable, everything
works as expected.
I do not have the option for HDMI on the monitor currently attached.
WORKAROUND: Add to the grub menu kernel parameter:
nomodeset
ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-9136.55-generic 4.4.16
Uname: Linux 4.4.0-9136-generic x86_64
.tmp.unity_support_test.0:
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
BootLog: /dev/sda6: clean, 615456/10196352 files, 5471760/20831539 blocks
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
Date: Wed Sep 7 15:46:17 2016
DistUpgraded: Fresh install
DistroCodename: yakkety
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Sumo [Radeon HD 6410D] [1002:9644]
(prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. [MSI] Sumo [Radeon HD 6410D]
[1462:7786]
MachineType: MSI MS-7786
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-9136-generic
root=UUID=dafa5f62-dc35-4803-b094-5062e73974b0 ro quiet splash
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M
crashkernel=384M-:128M crashkernel=384M-:128M vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/14/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V1.4
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: A55M-P25 (MS-7786)
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrV1.4:bd05/14/2012:svnMSI:pnMS-7786:pvr1.0:rvnMSI:rnA55M-P25(MS-7786):rvr1.0:cvnMSI:ct3:cvr1.0:
dmi.product.name: MS-7786
dmi.product.version: 1.0
dmi.sys.vendor: MSI
version.compiz: compiz 1:0.9.13.0+16.10.20160818.2-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.70-1
version.libgl1-mesa-dri: libgl1-mesa-dri 12.0.2-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 12.0.2-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-1ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.2-1ubuntu1
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+git20160706-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-2
xserver.bootTime: Wed Sep 7 15:33:21 2016
xserver.configfile: default
xserver.devices:
input Power Button KEYBOARD, id 6
input Power Button KEYBOARD, id 7
input HID 413c:3010 MOUSE, id 8
input AT Translated Set 2 keyboard KEYBOARD, id 9
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.18.4-1ubuntu6
xserver.video_driver: radeon
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