Emulator shows black screen after booting up

Bug #1397801 reported by XiaoGuo, Liu
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
goget-ubuntu-touch (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

After emulator is booted up and it is logged in, it shows black screen in the middle. However, the status panel is still visible, and the launch can be seen as well. This problem happened on my desktop (later on somehow it worked). Now, I am testing it on my live USB, and it seems to be very sticky. The emulator uses the rtm channel.

ubuntu-kylin@ubuntu-kylin:~$ adb shell
phablet@ubuntu-phablet:~$ system-image-cli -i
current build number: 9
device name: generic_x86
channel: ubuntu-touch/ubuntu-rtm/14.09
last update: 2014-11-27 12:11:32
version version: 9
version ubuntu: 20141124
version device: 20141119
phablet@ubuntu-phablet:~$

Attached please find the screenshots

Tags: univ-train
Revision history for this message
XiaoGuo, Liu (liu-xiao-guo) wrote :
description: updated
tags: added: univ-train
Revision history for this message
Pat McGowan (pat-mcgowan) wrote :

add ore steps to reproduce

Changed in goget-ubuntu-touch (Ubuntu):
assignee: nobody → XiaoGuo, Liu (liu-xiao-guo)
status: New → Incomplete
Revision history for this message
Rex Tsai (chihchun) wrote :

It's most likely unity8-dash dead or launched in wrong order.

1. Please include the log in /home/phablet/.cache/upstart/unity8-dash.log
2. Please see if there is crash data in /var/crash/*unity8-dash*

If you find the files, please upload them to this bug report.

You can verify the unity8-dash is running or not by this command
$ initctl list|grep -i unity8-dash

and restart it to se if the user interface come back as you expected
$ restart unity8-dash

Revision history for this message
XiaoGuo, Liu (liu-xiao-guo) wrote :

Today, I tried 4 more USB sticks, and the problem did not appear. It used to happen on one USB stick, and it was consistent. We may change it to invalid.

Changed in goget-ubuntu-touch (Ubuntu):
status: Incomplete → Invalid
Changed in goget-ubuntu-touch (Ubuntu):
assignee: XiaoGuo, Liu (liu-xiao-guo) → nobody
status: Invalid → New
Revision history for this message
Alex Wen (ronglu-wen) wrote :

@Rex

Xiaoguo and i recheck the bug and we found if we restart the unity8-dash in adb-shell.
The emulator black screen doesn't reproduce again.

Attached the log of unity8-dash.log

Revision history for this message
Alex Wen (ronglu-wen) wrote :
Changed in goget-ubuntu-touch (Ubuntu):
status: New → Confirmed
Revision history for this message
XiaoGuo, Liu (liu-xiao-guo) wrote : Re: [Bug 1397801] Re: Emulator shows black screen after booting up

Yes, this was confirmed yesterday when we were together.

On Mon, Dec 8, 2014 at 6:08 PM, Alex Wen <email address hidden> wrote:

> @Rex
>
> Xiaoguo and i recheck the bug and we found if we restart the unity8-dash
> in adb-shell.
> The emulator black screen doesn't reproduce again.
>
> Attached the log of unity8-dash.log
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1397801
>
> Title:
> Emulator shows black screen after booting up
>
> Status in goget-ubuntu-touch package in Ubuntu:
> Confirmed
>
> Bug description:
> After emulator is booted up and it is logged in, it shows black screen
> in the middle. However, the status panel is still visible, and the
> launch can be seen as well. This problem happened on my desktop (later
> on somehow it worked). Now, I am testing it on my live USB, and it
> seems to be very sticky. The emulator uses the rtm channel.
>
> ubuntu-kylin@ubuntu-kylin:~$ adb shell
> phablet@ubuntu-phablet:~$ system-image-cli -i
> current build number: 9
> device name: generic_x86
> channel: ubuntu-touch/ubuntu-rtm/14.09
> last update: 2014-11-27 12:11:32
> version version: 9
> version ubuntu: 20141124
> version device: 20141119
> phablet@ubuntu-phablet:~$
>
> Attached please find the screenshots
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/goget-ubuntu-touch/+bug/1397801/+subscriptions
>

--
XiaoGuo, Liu (刘晓国)
Mobile: +86-13911181302

Revision history for this message
Michał Sawicz (saviq) wrote :

Is this not bug #1396919 ?

Revision history for this message
Michał Sawicz (saviq) wrote :

Ah, this will be bug #1394208 actually.

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