[Samsung Series 9 NP900X4C-A02PT] Black screen at login

[mmalmeida]

When booting, the UI won't load. Instead, the system will display a black screen and a working mouse cursor.

If I ctl+alt+f5, it will display the shell login and I can login. UI will load if I restart the lightdm service.

If I boot in 3.8.0-25 the system will boot correctly.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-26-generic 3.8.0-26.38
ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
Uname: Linux 3.8.0-26-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: miguel 2846 F.... pulseaudio
Date: Mon Jul 29 22:36:44 2013
HibernationDevice: RESUME=UUID=ecb29cc9-8479-4343-a2a9-790ce4e24ebb
InstallationDate: Installed on 2012-12-27 (214 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X4C/900X4D
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-26-generic root=UUID=01aa4564-94b9-48d0-8b5c-3eb52d713746 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-26-generic N/A
 linux-backports-modules-3.8.0-26-generic N/A
 linux-firmware 1.106
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-06-01 (58 days ago)
dmi.bios.date: 09/19/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P02ABK
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: NP900X4C-A02PT
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP02ABK:bd09/19/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP900X4C-A02PT:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 900X3C/900X3D/900X4C/900X4D
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

[Brad Figg (brad-figg)]

This change was made by a bot.

[penalvch (penalvch)]

mmalmeida, could you please provide the full computer model from the sticker (ex. Samsung Series 9 NP900X3C-A01US)?

[mmalmeida (mmalmeida)]

Sure.
It's a Samsung Series 9 NP900X4C-A02PT.

[penalvch (penalvch)]

mmalmeida, thank you for providing the requested information. As Samsung does not display the current BIOS in an obvious manner, as per http://www.samsung.com/pt/support/model/NP900X4C-A02PT-downloads an update may be available for your BIOS. If you update to this, does it change anything?

If not, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

[mmalmeida (mmalmeida)]

Thanks , Christopher.

I upgraded the BIOS to version P08ABK via Windows 8, but now I have worse problems.

First I got an "Image failed to verify with acess denied" error as soon as I turned the computer on.
I then ran boot-repair from an usb ubuntu boot, and I now have ubuntu working. (see http://paste.ubuntu.com/5952650/ for the repair info).
However, I've completely lost access to windows 8, with the error very similar to http://askubuntu.com/questions/280339/windows-8-wont-boot-via-grub-after-intalling-12-10-with-boot-repair (running the suggested fix does not work in my case though).

The black screen issue hasn't appeared so far, though. But I do have a bigger problem to solve and no idea how to solve it.

[penalvch (penalvch)]

mmalmeida, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1206282/comments/6 regarding this being fixed with a BIOS update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.