Screen doesn't wake up when on minimum brightness

[Josué]

ubuntu 15.10 for phones beta r.223 (bq aquaris ubuntu edition)

Since r.222 upgrade i noticed that sometimes I cant unlock the phone.
When i push unlock button (one time) looks like nothing happens, screen doesn't woke up.
If i press a second time screen woke up for half second showing unlock screen.

When it happens, i know that the OS is running because when i push the unlock button(first time), i can make a screen shot pushing up volume and down volume at same time it also reproduce the sound.

Looks that the only problem is to wakeup the screen.

It began to happen without install any program, just upgrades.
When it happened to me I think that I haven't opened any app.

[Ubuntu Foundations Team Bug Bot (crichton)]

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[Michael Zanetti (mzanetti)]

This can be reproduced by setting screen brightness to a minimum and turning off the screen. Also happens on auto brightness and when being in a dark place.

Seems the minimum supplied power for the display needs to be increased for tiny bit.

[Josué (j2g2rp)]

I'll check this, I had this as autoadjust unless I now i put this at maximum (with autoadjust)

[Josué (j2g2rp)]

I checked it, if i turn the brightness to manual at minimum screen cant woke up but when it happened i had this at auto brightness adjust.
It didn't happen before...
Thanks for the answer.

[Michael Zanetti (mzanetti)]

I just upgraded to the latest vivid image and cannot reproduce this any more.

Josué, can you confirm this is fixed after upgrading?

[Josué (j2g2rp)]

I'm using vivid beta since one month ago and I never had seen it untill since four-five days... Maybe it's a coincidence....

[Michael Zanetti (mzanetti)]

Yes. I also saw it some days ago for the first time. But since today's update it's gone again for me.

[Josué (j2g2rp)]

today's update? have you got r.224?

[Michael Zanetti (mzanetti)]

It was r17 on channel ubuntu-touch/rc-proposed/bq-aquaris.en. Now it's r18.

[Josué (j2g2rp)]

Oups. My version is 15.10 r.223 looks like i jumped with last upgrade to next proposed... Ill try to change the tags

[Jean-Baptiste Lallement (jibel)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue for you?
Thanks in advance.

[Josué (j2g2rp)]

No. It didn't happened again. It's working fine for me since then. =)