[UX302LG] black screen on boot

[Aurélien MANCA]

My laptop is an ASUS UX302LG with kernel 3.13.0-5-generic on Ubuntu Trusty 14.04. When I boot, the screen is switched on but remains black. I connected another screen which works fine (VGA or HDMI) but I'm not able to use the primary screen.

I tested the kernel drm-intel-nightly/2014-01-23-trusty (http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/2014-01-23-trusty/) and it works well.

Same description/workaround as https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1263015 and https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1265544

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-5-generic 3.13.0-5.20
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
Uname: Linux 3.13.0-5-generic x86_64
ApportVersion: 2.13.2-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: aurelien 2267 F.... pulseaudio
 /dev/snd/controlC0: aurelien 2267 F.... pulseaudio
CurrentDesktop: XFCE
Date: Thu Jan 30 09:58:50 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-12-27 (33 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
MachineType: ASUSTeK COMPUTER INC. UX302LG
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-5-generic root=UUID=0252779d-5d7d-4442-85cb-152a9bf5a2dd ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-5-generic N/A
 linux-backports-modules-3.13.0-5-generic N/A
 linux-firmware 1.122
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2013-12-30 (30 days ago)
dmi.bios.date: 10/30/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX302LG.207
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX302LG
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX302LG.207:bd10/30/2013:svnASUSTeKCOMPUTERINC.:pnUX302LG:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX302LG:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: UX302LG
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Gabriel Diosan (gabsd84)]

I have a similar issue on my desktop. When I boot, most of the time all I get is a black screen with no login window. I can change to a terminal prompt (ctrl + alt +F2) to reboot the computer. Sometimes I can boot to the login screen and use the OS normally but this is probably about 25% of the time.

OS: Ubuntu Gnome 14.04 Beta
CPU: Intel Core2Duo
GPU: AMD Radeon HD7770
Kernel: 3.13.0-16-generic
Gnome Shell Version: 3.10.4-0ubuntu3

[Joseph Salisbury (jsalisbury)]

Thank you for taking the time to file a bug report on this issue.

However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request.

  With the recent release of this Ubuntu release, would like to confirm if this bug is still present. Please test again with the newer kernel and indicate in the bug if this issue still exists or not.

You can update to the latest development kernel by simply running the following commands in a terminal window:

    sudo apt-get update
    sudo apt-get dist-upgrade

If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released.

If you want this bot to quit automatically requesting kernel tests, add a tag named: bot-stop-nagging.

 Thank you for your help, we really do appreciate it.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]