This affected a Gateway NV78 that I installed Ubuntu 14.04 on. I completed the install and repair using an external monitor. Comment #53 fixed the black screen issue without the final kernel changes. Thanks for the help.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/765438 Title: 8086:2a42 [eMachines E527] On startup, the backlight is off on laptop Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Incomplete Bug description: When Ubuntu starts up, the back-light is off on my laptop. I can plug it into an external monitor and the display is fine. I can easily turn the back-light on with "sudo setpci -s 00:02.0 F4.B=[HEX]" where 00 is the brightest and FF is off. In past distributions, the GUI- based brightness utilities did not work and I used this command to change by back-light brightness. I know that there are many people who can not use back-light GUI-utilities on the past distributions as well. This issue also occurs if I close my screen and raise it again. This issue also effected the installation process as well as when I was using the i686 installer. ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: xorg 1:7.6+4ubuntu3 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Uname: Linux 2.6.38-8-generic x86_64 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell] CompositorRunning: compiz CurrentDmesg: [ 29.430043] eth0: no IPv6 routers present [ 30.988586] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro,commit=0 DRM.card0.DP.1: status: disconnected enabled: disabled dpms: Off modes: edid-base64: DRM.card0.LVDS.1: status: connected enabled: enabled dpms: On modes: 1366x768 edid-base64: AP///////wANr5kVAAAAAAcUAQOAIhN4Cj2VlFZPjigmUFQAAAABAQEBAQEBAQEBAQEBAQEBeh1W0lAAHjA8KDYAWMEQAAAYAAAA/gBOMTU2QjMtTDBCCiAgAAAA/gBDTU8KICAgICAgICAgAAAA/gBOMTU2QjMtTDBCCiAgAEg= DRM.card0.VGA.1: status: disconnected enabled: disabled dpms: Off modes: edid-base64: Date: Mon Apr 18 21:34:59 2011 DistUpgraded: Fresh install DistroCodename: natty DistroVariant: ubuntu GdmLog1: GdmLog2: GraphicsCard: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] Device [1025:0459] Subsystem: Acer Incorporated [ALI] Device [1025:0459] InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413) MachineType: eMachines eMachines E527 ProcEnviron: LANGUAGE=en_US:en LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=83376c0e-9440-4ba9-bbdb-363565bf5e72 ro quiet splash vt.handoff=7 Renderer: Unknown SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/16/2010 dmi.bios.vendor: eMachines dmi.bios.version: V1.01 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: eMachines E527 dmi.board.vendor: eMachines dmi.board.version: V1.01 dmi.chassis.type: 10 dmi.chassis.vendor: eMachines dmi.chassis.version: V1.01 dmi.modalias: dmi:bvneMachines:bvrV1.01:bd04/16/2010:svneMachines:pneMachinesE527:pvrV1.01:rvneMachines:rneMachinesE527:rvrV1.01:cvneMachines:ct10:cvrV1.01: dmi.product.name: eMachines E527 dmi.product.version: V1.01 dmi.sys.vendor: eMachines version.compiz: compiz 1:0.9.4+bzr20110411-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu12 version.libdrm2: libdrm2 2.4.23-1ubuntu6 version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu1 version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/765438/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
