Danrancan
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Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Sun Feb 09, 2020 2:46 am

I am attempting to switch to ubuntu server from raspbian by dd'ing the Ubuntu Ubuntu 18.04.3 LTS server img file to my sd card on my mac, and then putting the copied sd card into my raspberry pi. However, either I am not copying ubuntu correctly to the pi (pretty sure dd should work as well as etcher. But neither do), or ubuntu server for raspberry pi 4 doesnt' support my monitor at boot time. All I get is a black screen and there is no real way to tell if its even booting. What are the common remedies and methods for debugging a black screen on boot of ubuntu, as well as properly copying the ubuntu server image to the sd card? Should I be creating an "ssh" file in the root directory of ubuntu like you would on Raspbian? Please let me know where to start! Thank you!
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iwantpi
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Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Sun Feb 09, 2020 8:06 pm

Same issue here. Cannot get 32bit or 64bit Ubuntu 18.04.3 to boot. However, if I use Ubuntu 19.10 and edit the userconfig.txt file to contain:
hdmo_force_mode=1
hdmi_group:0=2
hdmi_mode:0=39
it will boot and I can proceed.
In checking the files for Ubuntu 18.04.3 I did not see a userconfig.txt file so unsure if one can be added or needs to be?
Sticking with 19.10 for now but I would prefer 18.04.3.

fruitoftheloom
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Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Mon Feb 10, 2020 3:29 pm

Danrancan wrote:
Sun Feb 09, 2020 2:46 am
I am attempting to switch to ubuntu server from raspbian by dd'ing the Ubuntu Ubuntu 18.04.3 LTS server img file to my sd card on my mac, and then putting the copied sd card into my raspberry pi. However, either I am not copying ubuntu correctly to the pi (pretty sure dd should work as well as etcher. But neither do), or ubuntu server for raspberry pi 4 doesnt' support my monitor at boot time. All I get is a black screen and there is no real way to tell if its even booting. What are the common remedies and methods for debugging a black screen on boot of ubuntu, as well as properly copying the ubuntu server image to the sd card? Should I be creating an "ssh" file in the root directory of ubuntu like you would on Raspbian? Please let me know where to start! Thank you!

What did you actually install ?

https://ubuntu.com/download/raspberry-pi
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7antoine7
Posts: 2
Joined: Mon Jul 15, 2019 1:22 am

Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Mon Feb 10, 2020 4:44 pm

Same issue here, I installed the 64 bits version on my pi 4 4GB. I can't find the system log in /var/log so I don't know if it's booting but since there's no kern.log or syslog maybe it's not. Also I had to unplug the pi without turning it off since I don't have access so maybe it's why the log aren't there.

PaPaTheGMan
Posts: 5
Joined: Mon May 20, 2019 2:33 pm

Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Mon Feb 10, 2020 7:48 pm

Also having same issue. 19.10 installed and ran fine, but had some apps that wouldn't run so I wanted to downgrade to 18.04.03. Any help or assistance would be greatly appreciated.

tinkernick
Posts: 11
Joined: Thu Jan 10, 2013 5:10 pm

Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Mon Feb 10, 2020 8:20 pm

I get the same, but the image available here works for me

https://jamesachambers.com/raspberry-p ... official/

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perdicaro
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Location: Switzerland

Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Tue Feb 11, 2020 9:42 am

I have same problem any idea to resolve?

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waveform80
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Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Tue Feb 11, 2020 4:54 pm

Sorry, this is us messing up!

The forthcoming 18.04.4 release (*not* .3) will bring support for the Pi4, but the .4 release got delayed a week to deal with a couple of issues on the simultaneous Core18 release (which also brings Pi4 support). Unfortunately, it appears updating the website didn't get delayed (which is probably me not knowing who to talk to). The .4 release should be out on Thursday this week at the latest, so with a bit of luck you shouldn't have to wait too long!

For reference, the point release should bring support for the pi4 to both new installs and to upgrades of existing images. In other words, once released it should be possible to run a full update/upgrade of your existing Bionic install on a Pi3 (or 2, 3+, etc.), shut it down, move the card to a Pi4, and boot it successfully - assuming everything including the kernel is upgraded.

Dave Jones.
Author of / contributor to a few pi related things (picamera, Sense HAT emulator, gpio-zero, piwheels, etc.), and currently a software engineer at Canonical responsible for Ubuntu Server and Core on the Raspberry Pi.

murraybd
Posts: 12
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Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Wed Feb 12, 2020 11:54 pm

The 18.04.4 version of Ubuntu which supports the Raspberry Pi 4 is now linked to from https://ubuntu.com/download/raspberry-pi.
Software Engineer at Canonical
Ubuntu Core Developer

Danrancan
Posts: 38
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Location: Milwaukee, WI, USA
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Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Thu Feb 13, 2020 10:07 pm

iwantpi wrote:
Sun Feb 09, 2020 8:06 pm
Same issue here. Cannot get 32bit or 64bit Ubuntu 18.04.3 to boot. However, if I use Ubuntu 19.10 and edit the userconfig.txt file to contain:
hdmo_force_mode=1
hdmi_group:0=2
hdmi_mode:0=39
it will boot and I can proceed.
In checking the files for Ubuntu 18.04.3 I did not see a userconfig.txt file so unsure if one can be added or needs to be?
Sticking with 19.10 for now but I would prefer 18.04.3.
Thanks for the extra info. Maybe I will switch to 19.10 if this can't get resolved.
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Danrancan
Posts: 38
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Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Thu Feb 13, 2020 10:08 pm

fruitoftheloom wrote:
Mon Feb 10, 2020 3:29 pm
Danrancan wrote:
Sun Feb 09, 2020 2:46 am
I am attempting to switch to ubuntu server from raspbian by dd'ing the Ubuntu Ubuntu 18.04.3 LTS server img file to my sd card on my mac, and then putting the copied sd card into my raspberry pi. However, either I am not copying ubuntu correctly to the pi (pretty sure dd should work as well as etcher. But neither do), or ubuntu server for raspberry pi 4 doesnt' support my monitor at boot time. All I get is a black screen and there is no real way to tell if its even booting. What are the common remedies and methods for debugging a black screen on boot of ubuntu, as well as properly copying the ubuntu server image to the sd card? Should I be creating an "ssh" file in the root directory of ubuntu like you would on Raspbian? Please let me know where to start! Thank you!

What did you actually install ?

https://ubuntu.com/download/raspberry-pi
I installed the raspberry Pi 4 version on the link you posted. Ubuntu 18.04 for raspberry pi 4.
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Danrancan
Posts: 38
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Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Thu Feb 13, 2020 10:14 pm

waveform80 wrote:
Tue Feb 11, 2020 4:54 pm
Sorry, this is us messing up!

The forthcoming 18.04.4 release (*not* .3) will bring support for the Pi4, but the .4 release got delayed a week to deal with a couple of issues on the simultaneous Core18 release (which also brings Pi4 support). Unfortunately, it appears updating the website didn't get delayed (which is probably me not knowing who to talk to). The .4 release should be out on Thursday this week at the latest, so with a bit of luck you shouldn't have to wait too long!

For reference, the point release should bring support for the pi4 to both new installs and to upgrades of existing images. In other words, once released it should be possible to run a full update/upgrade of your existing Bionic install on a Pi3 (or 2, 3+, etc.), shut it down, move the card to a Pi4, and boot it successfully - assuming everything including the kernel is upgraded.

Dave Jones.
Hey thanks for the response and info Dave. So essentially, if I'm understanding this correctly, this is on Ubuntu's end of things, and we are downloading an unsupported image? However, if we wait until thusday (today) the properly supported image should be available? Great! How will I know that I am actually downloading the correct Pi4 version of ubuntu this time though? Any official updates to let us know that the new ubuntu server image is now downloadable and supports the Pi 4? Thank you kindly for your answers!
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plars
Posts: 1
Joined: Thu Feb 13, 2020 11:32 pm

Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Thu Feb 13, 2020 11:35 pm

The current link at https://ubuntu.com/download/raspberry-pi will point you to 18.04.4.

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waveform80
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Re: Ubuntu server 18.04.3 LTS Black Screen on boot, pi 4

Fri Feb 14, 2020 12:41 am

Danrancan wrote:
Thu Feb 13, 2020 10:14 pm
[snip]

Hey thanks for the response and info Dave. So essentially, if I'm understanding this correctly, this is on Ubuntu's end of things, and we are downloading an unsupported image? However, if we wait until thusday (today) the properly supported image should be available?
That's the size of it - the 18.04.4 links are now correct; the images all went up today and should be working.
Danrancan wrote:
Thu Feb 13, 2020 10:14 pm
Great! How will I know that I am actually downloading the correct Pi4 version of ubuntu this time though? Any official updates to let us know that the new ubuntu server image is now downloadable and supports the Pi 4? Thank you kindly for your answers!
Good question; you can compare the md5sum of the images you downloaded to those at http://cdimage.ubuntu.com/releases/18.0 ... se/MD5SUMS - as the 18.04.4 images are now in place those should match valid 18.04.4 downloads.

On the topic of official announcements of Pi 4 support in this release, there should be something in the Release Notes, but I've noticed there's nothing there on actually upgrading to the 4B. I'll add something about that in a mo!

Dave.
Author of / contributor to a few pi related things (picamera, Sense HAT emulator, gpio-zero, piwheels, etc.), and currently a software engineer at Canonical responsible for Ubuntu Server and Core on the Raspberry Pi.

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