Ubuntu image - icons and parts of screen disappear with Origen

[Angus Ainslie]

After booting the ubuntu desktop image parts of the display disappear. When the cursor goes over those regions they reappear

[Tom Gall (tom-gall)]

As a data point the redraw issues continue after you log out and are presented with the log in panel. Interaction with the panel via clicking on it causes it to repaint itself.

[Tom Gall (tom-gall)]

An additional data point.

When using
hwpack_linaro-omap3_20110414-0 the problem does not show up on beagle Xm.

[Steve Langasek (vorlon)]

So the X driver package in the omap3-x11-base hwpack is xserver-xorg-video-omap3. I'm pretty sure this isn't responsible for any issues Angus is seeing on Samsung boards. Tom, can you file a separate bug against the xserver-xorg-video-omap3 package for the beagle-specific issue?

[Ricardo Salveti (rsalveti)]

Can also confirm that this is still an issue with the 11.08 RC release, using linaro-n-ubuntu-desktop-tar-20110823-3.tar.gz and hwpack_linaro-lt-origen_20110823-0_armel_supported.tar.gz.

Could be related with the fb driver, as the userspace works fine with different boards, all using fb.

[Fathi Boudra (fboudra)]

Angus, could someone from the LT look at the issue?
Ricardo believes it's related with the framebuffer support.
Any help is appreciated.

[Ricardo Salveti (rsalveti)]

Confirmed with 11.09 RC.

[Fathi Boudra (fboudra)]

Tushar, any progress?

[Tushar Behera (tusharbehera)]

Fathi, the current framebuffer driver used in hwpacks is an internal driver, this would be replaced in 3.1. So I will debug this issue with 3.1. As a note, when we disable 'Unity', we don't see the screen-flicker.

[Tom Gall (tom-gall)]

what's the status on this bug? 11.10 isn't far away! :-)

[Angus Ainslie (angus-akkea)]

We are waiting for the new framebuffer driver in 3.1 to see if this gets fixed.

Unfortunately 3.1 did not make this months release

On Thu, Oct 20, 2011 at 8:48 AM, Tom Gall <email address hidden> wrote:
> what's the status on this bug?  11.10 isn't far away! :-)
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/753878
>
> Title:
>  Ubuntu image - icons and parts of screen disappear with Origen
>
> Status in Linaro Samsung Landing Team Project:
>  Confirmed
> Status in Linaro Ubuntu Evaluation Builds:
>  Confirmed
>
> Bug description:
>  After booting the ubuntu desktop image parts of the display disappear.
>  When the cursor goes over those regions they reappear
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/linaro-landing-team-samsung/+bug/753878/+subscriptions
>

--
Angus Ainslie <email address hidden>
Team Lead, Samsung Landing Team

[Ricardo Salveti (rsalveti)]

Just to say it's still and issue with the 2011.10 release (based on oneiric):
Hwpack: hwpack_linaro-lt-origen_20111022-0_armel_supported.tar.gz
Image: linaro-o-ubuntu-desktop-tar-20111023-0.tar.gz

[Fathi Boudra (fboudra)]

Re-target to 11.11. @Angus: any chance to get it fixed this cycle?

[Fathi Boudra (fboudra)]

> > Re-target to 11.11. @Angus: any chance to get it fixed this cycle?
> Changed in linaro-landing-team-samsung:
> milestone: 2011.11 → 2011.12

I'll take it as a no :)

[Ricardo Salveti (rsalveti)]

On Thu, Nov 17, 2011 at 2:10 PM, Fathi Boudra <email address hidden> wrote:
>> > Re-target to 11.11. @Angus: any chance to get it fixed this cycle?
>> Changed in linaro-landing-team-samsung:
>> milestone:     2011.11 → 2011.12
>
> I'll take it as a no :)

Can we at least improve the importance at the LT side? This is a
blocker for Ubuntu, as the default interface is basically useless with
this bug.

[Fathi Boudra (fboudra)]

On 17 November 2011 18:23, Ricardo Salveti <email address hidden> wrote:
> Can we at least improve the importance at the LT side? This is a
> blocker for Ubuntu, as the default interface is basically useless with
> this bug.

My understanding is that we need to switch to 3.1 kernel with a new
driver to make progress. Current hardware pack is still 3.0 kernel
afaics.

[Ricardo Salveti (rsalveti)]

The screen-flicker seems to happen only when the desktop is running Unity 2D. Tested with gnome-classic and xfce (with metacity running with and without composite), and it's working fine.

Probably related with some specific effect that's used by Unity, and not fully supported by the framebuffer device.

[Bernhard Rosenkraenzer (berolinux)]

The fix to a similar problem in Android was replacing calls to FBIOPUT_VSCREENINFO (abused to do a page flip) with FBIOPAN_DISPLAY.

Might or might not be the same problem, I haven't looked at Unity 2D's code at all yet.

[Alexander Sack (asac)]

On Wed, Nov 23, 2011 at 5:15 AM, Ricardo Salveti <email address hidden>wrote:

> The screen-flicker seems to happen only when the desktop is running
> Unity 2D. Tested with gnome-classic and xfce (with metacity running with
> and without composite), and it's working fine.
>
> Probably related with some specific effect that's used by Unity, and not
> fully supported by the framebuffer device.
>
> How many effects do framebuffers provide? If we have unity 2d working
on other framebuffers flawlessly then this really feels indicating
quite a serious issue with something as simple as framebuffer ...

Please raise this with PM. If unity 2D is not working then there
effectively is no Ubuntu LEB.

--
Alexander Sack
Technical Director, Linaro Platform Teams
http://www.linaro.org | Open source software for ARM SoCs
http://twitter.com/#!/linaroorg - http://www.linaro.org/linaro-blog