Public bug reported:
Backlight flashes at booting. And booting enters into black screen with
message "you need to manually fix graphics and video driver". Unable to
fix it manually.
If the lcd screen is turned off during booting using (fn+f7) keys ,
ubuntu 16.04 boots without any trouble.
Suspend not working properly. laptop wakes automatically from sleep
after 3 seconds.
The problem start in ubuntu 14.04 & continues in 16.04 also after
downgrading to 12.04 & 13.10.
operating system :ubuntu 16.04 ,64-bit
Laptop model: HCL me laptop
$ ls /sys/class/backlight/
intel_backlight
$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
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
.tmp.unity_support_test.0:
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
BootLog: /dev/sda5: clean, 265587/1099440 files, 1523216/4397056 blocks
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Sun Jul 24 16:12:23 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics
Controller [8086:0106] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Pegatron 2nd Generation Core Processor Family Integrated Graphics
Controller [1b0a:2080]
InstallationDate: Installed on 2016-07-09 (14 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
Lsusb:
Bus 002 Device 003: ID 0e8d:2004 MediaTek Inc.
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HCL Infosystems Limited HCL ME Laptop
ProcEnviron:
LANGUAGE=en_IN:en
PATH=(custom, no user)
LANG=en_IN
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic
root=UUID=5137acf3-f2aa-469f-b5ec-9de215734f1a ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/19/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 211
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: HCL ME Laptop
dmi.board.vendor: HCL
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HCL
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr211:bd10/19/2012:svnHCLInfosystemsLimited:pnHCLMELaptop:pvr1.0:rvnHCL:rnHCLMELaptop:rvr1.0:cvnHCL:ct10:cvr1.0:
dmi.product.name: HCL ME Laptop
dmi.product.version: 1.0
dmi.sys.vendor: HCL Infosystems Limited
version.compiz: compiz 1:0.9.12.2+16.04.20160526-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1
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 2:1.18.3-1ubuntu2.2
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: Sun Jul 24 16:04:47 2016
xserver.configfile: default
xserver.devices:
input Power Button KEYBOARD, id 6
input Video Bus KEYBOARD, id 7
input Sleep Button KEYBOARD, id 8
input AT Translated Set 2 keyboard KEYBOARD, id 9
input SynPS/2 Synaptics TouchPad TOUCHPAD, id 10
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 6972
vendor AUO
xserver.version: 2:1.18.3-1ubuntu2.2
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug compiz-0.9 ubuntu xenial
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1605982
Title:
backlight flashes at booting.
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https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1605982/+subscriptions
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