LG nexus 5, welcome screen is shifted upwards after switching power on

A Former User · 11 Apr 2021, 16:45

hi all !
a few days ago, I bought a nexus 5 from LG. Today, I used the

ubports-installer_0.8.7-beta_linux_amd64.deb and installed ubuntu touch on the device.

It did not run smoothly; probably because it is the first mobile device I have ever flashed. But at the end it was installed.

First I checked making a call and internet browsing via wlan, both fine.

Then I restarted the phone and I saw an upwards shifted welcome screen, I attach a picture from.

The graphics unit seems not to have the real screen size or offset position. If I tried to log in with the pin, I remarked, the system calculates the button position correct. Only the display of the screen is shifted, not the mask of the touch screen itself.

It isn't a real obstacle, because I found out that it is sufficient to switch off the screen with the power button. After pressing the power button again, the display screen is on the correct position.

but it is quite ugly. Could someone give me a hint, how tof fix that?

jobus

kugiigi · 11 Apr 2021, 16:46

I've seen this issue before but I never experienced this on my 2 Nexus 5.
I guess it'll only show up once in a blue moon

A Former User · 11 Apr 2021, 16:51

the effect is reliable repeatable.

cliffcoggin · 11 Apr 2021, 16:56

It has happened from time to time on my Nexus 5 since I bought it, usually if the phone is moved during start up. The effect is harmless so I never bothered to try to resolve it.

domubpkm · 11 Apr 2021, 17:16

Old solved issue nexus 5 displaced screen

Reflash the Nexus 5 with the last androïd factory image 6.0.1 (M4B30Z dec 2016) solve the issue.

I hope this link is good yet :

https://dl.google.com/dl/android/aosp/hammerhead-m4b30z-factory-625c027b.zip

stanwood · 11 Apr 2021, 17:33

@domubpkm I confirm, I had the same issue and resolved it by re-flashing to Android, and then re-install Ubuntu Touch after.
It's due to a firmware issue.
You can use "Nexus root toolkit" to flash your device (only for Windows 10 computers)

A Former User · 11 Apr 2021, 18:10

@domubpkm
Thank you for the hint !
But reflashing android ? Hmm, not my favorite solution. Some answers later, Flohack74 mentioned, there should be a fix in the ubports image, https://github.com/ubports/ubuntu-touch/issues/27#issuecomment-570735240.
Perhaps, the bug has emerged again. In doubt, I would follow the advice of cliffcoggin.

A Former User · 11 Apr 2021, 18:14

@stanwood
Thanks for the confirmation.

Keneda · 11 Apr 2021, 21:32

modules:composer.user_said_in, @jobus, LG nexus 5, welcome screen is shifted upwards after switching power on

But reflashing android ? Hmm, not my favorite solution.

Do not worry, it will not eat you, and then you'll have the good drivers and can get rid of android forever

Markatrafik · 12 Apr 2021, 17:21

@keneda Googlandroid is very uncomfortable... and, this is not right way

Keneda · 12 Apr 2021, 21:16

@markatrafik To run uTouch correctly on an android native device, you need the good android version installed on before, this is the only way...

Markatrafik · 13 Apr 2021, 04:06

@keneda That's clear... so how does UT still use part of Android to interact with the hardware? And the community does not have the power to normally port all drivers into the mainstream Linux kernel. There is no way to convince manufacturers to do this - there is no market yet. But, what does "correct" Android mean? I guess it's the one that was installed by the manufacturer on the phone when it was sold, and updated in the normal way? And while UT wants Android 9 but not Android 10 - as there are some problems in interfacing with its components? This is all very sad of course... as no one wants to change the situation, or simply there is no power.

Keneda · 13 Apr 2021, 05:22

@markatrafik
I don't get your point...

For each device, for each halium or non halium uTouch port, you need some specific android to be on this device prior installing, that's the way it is for android native device and no one can change this.

Now if you don't want any android part, there is the pinephone, and maybe one day, Librem 5.

Markatrafik · 13 Apr 2021, 05:46

@keneda If the community will not set a goal of independent operation of UT with smartphone hardware as it do Librem and Pine, after a while Google will shut down the ability to use its components to work UT. For this, cryptographic means of binding of software and hardware can be used by Google. On the other hand, we can go the current way, then if UT gains more popularity, we can make own HAL, independent of Android, and the manufacturers themselves will write drivers for Linux and fit it into that HAL.

AppLee · 13 Apr 2021, 08:50

@markatrafik

If I get your point of view, as long as AOSP is open sourced there is no risk.
The interface with the drivers and any binding with the hardware can be integrated within UT.

A port has to know which android version was previously installed in order to assess correctly how to access the drivers.
If a driver is not in the right version than there is a risk the API changed and induced bugs...

A Former User · 20 Apr 2021, 19:36

Hi all,
thank you for the discussion about that topic.

Interesting, I have to update to the newest android system before
the installation of ubuntu touch!

I can understand the explanation above for that procedure but it is
unexpected. In the common documentation and the device page I did not remark any hints to that fact.

Probably, I can use the ubports-installer to install the latest recommended android image.

After that, I have to install ut again and start the setup from scratch
again.

Do I guess right?

unrealb2 · 7 May 2021, 02:32

Does ur screen stay this way permenantly? Ive ported several nexus5's and the one i recently bought does this glitch. But when i turn the screen on and off it goes away. If i do a factory reset the glitch will be there. But its strange because ive only seen it and ive ported 6 nexus5's so far.

A Former User · 14 Jul 2021, 17:04

@unrealb2
Sorry for my late answer, I haven't visited the forum for a longer time.
You have described exactly the behavior, I see. In the answers above, the probable cause is described. The device, I bought had an older android version and updating to the most recent one - for the nexus 5 - and then reinstalling ubports should solve that behavior. I didn't try that till now. Perhaps, I will find the time the coming weekend.

A Former User · 16 Jul 2021, 12:15

final status:
Today I have flashed the device with the last available android image for the nexus 5. I followed the description on https://developers.google.com/android/images#hammerhead.
After that I repeated the ut-nstallation with the UBports installer. The phone seems to work and the screen issue is fixed.