ubuntu-logo theme rendered incorrectly with recent grub, instead of full-screen purple, it's a purple frame around black rectangle

[Dimitri John Ledkov]

SRU Justification:
[Impact]
When booting ubuntu-desktop you'll see a black rectangle instead of fully purple screen as early as possible.
[Test Case]
1. install update
2. run $ sudo update-grub
3. Reboot
[Regression Potential]
Minor change to background_color to fix this issue.

--

if background_color 44,0,30; then
  clear
fi

is what ubuntu-logo plymouth theme snippet injects into grub.cfg, this generates a purple one character frame whilst the center is black. It used to be all purple. i mean aubergine.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Yu Ning (yuningdodo)]

I checked the grub2's source code, command clear will invoke each output backend's cls method, and it seems that the black rectangle is produced by backend "console".

[Yu Ning (yuningdodo)]

I noticed a very weird behavior by executing below commands in grub console:

```
set pager=1

background_color 44,0,30

# from now on all the text will be printed with black background but not color 44,0,30

help

# help will show a long list of commands, since we have set pager=1 then it will first pause on the first page, all the text are displayed with black background.

# then we press space to view next page, and we can notice that the background is now correctly set to color 44,0,30 instead of black.
```

It seems that some settings are not fully synced in command background_color, but it's synced by the pager switching.

[Yu Ning (yuningdodo)]

I found a workaround for this issue by setting alpha channel to 0:

if background_color 44,0,30,0; then
  clear
fi

[Dimitri John Ledkov (xnox)]

On 10 September 2014 12:38, Yu Ning <email address hidden> wrote:
> I found a workaround for this issue by setting alpha channel to 0:
>
> if background_color 44,0,30,0; then
> clear
> fi
>

\o/ horay. Let me upload this fix into both Utopic and Trusty!

--
Regards,

Dimitri.

[Launchpad Janitor (janitor)]

This bug was fixed in the package plymouth - 0.9.0-0ubuntu5

---------------
plymouth (0.9.0-0ubuntu5) utopic; urgency=medium

  * Adjust grub snippet that sets purple background color - set alpha to
    zero. This corrects early boot theming. Thanks to Yu Ning. (LP:
    #1308723).
 -- Dimitri John Ledkov <email address hidden> Sun, 21 Sep 2014 22:28:25 +0100

[pdknsk (pdknsk)]

It didn't make it to Trusty.

[pdknsk (pdknsk)]

Still not in Trusty.

[Timo Jyrinki (timo-jyrinki)]

It's in the queue (https://launchpad.net/ubuntu/trusty/+queue?queue_state=1&queue_text=). After it gets forward from there, this bug will be updated with instructions on how to verify the fix.

[Chris J Arges (arges)]

Hello Dimitri, or anyone else affected,

Accepted plymouth into trusty-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/plymouth/0.8.8-0ubuntu17.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Yu Ning (yuningdodo)]

I verified on my trusty box, by upgrading below packages to 0.8.8-0ubuntu17.1:

libplymouth2
plymouth
plymouth-label
plymouth-theme-ubuntu-logo
plymouth-theme-ubuntu-text

the issue still can be reproduced until I manually execute "update-grub". During the upgrade only update-initramfs is executed, but not update-grub.

Should we treat this is as verification-done? Or verification-failed?

[Dimitri John Ledkov (xnox)]

On 3 December 2014 at 06:30, Yu Ning <email address hidden> wrote:
> I verified on my trusty box, by upgrading below packages to
> 0.8.8-0ubuntu17.1:
>
> libplymouth2
> plymouth
> plymouth-label
> plymouth-theme-ubuntu-logo
> plymouth-theme-ubuntu-text
>
> the issue still can be reproduced until I manually execute "update-
> grub". During the upgrade only update-initramfs is executed, but not
> update-grub.
>
> Should we treat this is as verification-done? Or verification-failed?
>

That's verification-done. Plymouth themes must not trigger grub
update, however they do provide a snippet that grub integrates into
it's theming at next convenient update-grub time at which point the
visual bug is resolved. I'll update test instructions.

--
Regards,

Dimitri.

[Yu Ning (yuningdodo)]

Thanks for the explanation, then I'll mark it as verification-done.

[Launchpad Janitor (janitor)]

This bug was fixed in the package plymouth - 0.8.8-0ubuntu17.1

---------------
plymouth (0.8.8-0ubuntu17.1) trusty; urgency=medium

  * Correct early boot theming. Adjust grub snippet that sets purple
    background color - set alpha to zero. Thanks to Yu Ning. (LP:
    #1308723).
 -- Dimitri John Ledkov <email address hidden> Wed, 26 Nov 2014 00:40:31 +0000

[Chris J Arges (arges)]

The verification of the Stable Release Update for plymouth has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

[dino99 (9d9)]

This has been fixed long time ago.