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by waveform80
Thu Jul 02, 2020 2:17 pm
Forum: Ubuntu
Topic: How to activate DISPLAY without connected screen
Replies: 2
Views: 401

Re: How to activate DISPLAY without connected screen

kazin08's already provided 99% of what you need here. I'd only add that I found xrdp to be pretty useful for remote desktop (didn't have as much luck getting a VNC setup which included authentication); just add its xrdp user to the ssl-cert group and off you go (I wrote up some notes on this a while...
by waveform80
Thu Jul 02, 2020 2:13 pm
Forum: Raspberry Pi OS
Topic: cross-compiling raspbian and installing it to SD card on ubuntu (don't boot)
Replies: 2
Views: 381

Re: cross-compiling raspbian and installing it to SD card on ubuntu (don't boot)

Please note those instructions are for building the Raspbian kernel , not an entire Raspbian image. Further, the "install" target is typically for installing a built kernel image on your host system which is almost certainly not what you want here. The end of those instructions includes no...
by waveform80
Thu Jul 02, 2020 2:09 pm
Forum: Ubuntu
Topic: resolution stuck with rpi 4 [UBUNTU]
Replies: 3
Views: 1959

Re: resolution stuck with rpi 4 [UBUNTU]

As kazin08 has noted, dtoverlay=vc4-fkms-v3d is very important for anyone wanting to attempt running a desktop on Ubuntu. Without this, most desktop environments will have trouble driving the display (or at the very least will be unreliable).
by waveform80
Thu Jul 02, 2020 2:06 pm
Forum: Ubuntu
Topic: For server applications, is Ubuntu server better than Raspbian on rpi 4?
Replies: 14
Views: 11832

Re: For server applications, is Ubuntu server better than Raspbian on rpi 4?

Seems like booting from SSD can be done https://www.tomshardware.com/how-to/boot-raspberry-pi-4-usb Sadly we can't support pure USB MSD boot at this time on Ubuntu; the u-boot portion of our boot process is incompatible with it (on all models; on the Pi 4 specifically it currently lacks drivers for...
by waveform80
Thu Jul 02, 2020 2:04 pm
Forum: Ubuntu
Topic: For server applications, is Ubuntu server better than Raspbian on rpi 4?
Replies: 14
Views: 11832

Re: For server applications, is Ubuntu server better than Raspbian on rpi 4?

I was wondering whether Ubuntu server 20.04 would be a better choice than raspbian if one were running server applications on Raspberry pi 4. Anyone tried Ubuntu server on raspberry pi 4? How was the experience? What problems did you encounter? Slow speed? Is raspbian better? I installed Focal Foss...
by waveform80
Thu Jul 02, 2020 1:59 pm
Forum: Ubuntu
Topic: looking for information on kernel programming and device trees for the Raspberry Pi 4 in Ubuntu
Replies: 6
Views: 691

Re: looking for information on kernel programming and device trees for the Raspberry Pi 4 in Ubuntu

(2) pointers to forums or other venues for learning and asking questions - There are loci of expertise about the raspberry pi, about the linux kernel, and about the ubuntu distro, but the kinds of questions I'd like to ask are very much at the periphery of each of these different venues. I suspect ...
by waveform80
Thu Jul 02, 2020 1:34 pm
Forum: Ubuntu
Topic: How to manually install Ubuntu Server?
Replies: 7
Views: 814

Re: How to manually install Ubuntu Server?

The Ubuntu Server for Pi images are derived from the Ubuntu Cloud images, i.e. the pre-installed images used on clouds like AWS, Azure, etc. These are (necessarily) pretty minimal images: no GUI, no services beyond SSH, all the usual networking stuff, systemd, etc. If you want to have a look what's ...
by waveform80
Thu Jul 02, 2020 1:29 pm
Forum: Ubuntu
Topic: installing core
Replies: 1
Views: 230

Re: installing core

The SSH keys to connect to a Core installation are retrieved from your Launchpad account after completing the configuration. In other words, the "store sign in" is not just about registering the device to your account, it's also about giving you access to the device via the SSH keys associ...
by waveform80
Thu Jul 02, 2020 1:01 pm
Forum: Ubuntu
Topic: default password for ubuntu?
Replies: 3
Views: 20441

Re: default password for ubuntu?

Yes, the default username is "ubuntu" and password is "ubuntu". As others have noted you need to wait a couple of minutes after boot as the user does not exist by default; the cloud-init process is responsible for setting up the default user and does so after the first boot has f...
by waveform80
Sat May 02, 2020 6:23 pm
Forum: Ubuntu
Topic: Ubuntu 20.04 HDMI display driver problem
Replies: 10
Views: 14939

Re: Ubuntu 20.04 HDMI display driver problem

If you haven't already, try adding the following to /boot/firmware/syscfg.txt (or usercfg.txt):

Code: Select all

dtoverlay=vc4-fkms-v3d
That loads the "fake" KMS framebuffer which is considerably better for desktop usage. There's a few more bits in this post in case they're useful.

Dave.
by waveform80
Fri May 01, 2020 10:41 am
Forum: Ubuntu
Topic: GPIO configuration on Ubuntu
Replies: 9
Views: 6318

Re: GPIO configuration on Ubuntu

evdokimosk wrote:
Fri May 01, 2020 8:32 am
Dear Dave,

I have reported a bug as you suggested with the bug reference Bug #1876265

Hope this helps,
Evdokimos
Excellent, thank you - that's going straight on the list of bugs I'm tracking this cycle. Will see what I can find out when the hardware arrives.
by waveform80
Fri May 01, 2020 10:16 am
Forum: Ubuntu
Topic: Ubuntu 20.04 (Focal Fossa)
Replies: 55
Views: 13883

Re: Ubuntu 20.04 (Focal Fossa)

petro wrote:
Tue Apr 28, 2020 2:16 pm
my pi 4b 4Gb, why there is no bluetooth?
Install the pi-bluetooth package:

Code: Select all

$ sudo apt install pi-bluetooth
$ sudo reboot
There's some bits that run on startup - I can't remember if the reboot is absolutely required after installation so I've just included that as a precaution.
by waveform80
Fri May 01, 2020 10:12 am
Forum: Ubuntu
Topic: Ubuntu 20.04 (Focal Fossa)
Replies: 55
Views: 13883

Re: Ubuntu 20.04 (Focal Fossa)

it's suppose to go in /boot/firmware/usercfg.txt just curious in your about it it using llvmpipe for video? also are you 32 or 64 bit? i was 32bit in my testing. Just to clear up confusion around this: You can put stuff in config.txt or usercfg.txt (or syscfg.txt) - it shouldn't make any difference...
by waveform80
Fri May 01, 2020 10:05 am
Forum: Ubuntu
Topic: Ubuntu 20.04 (Focal Fossa)
Replies: 55
Views: 13883

Re: Ubuntu 20.04 (Focal Fossa)

does upgrade from daily build, its the same? after upgrade to 20.04, sway/wayland broken. system dead even Ctrl+Alt+F2, maybe mesa issue not sure? ps. Rpi2-armhf, before upgrade all good. Sorry to hear that - I did briefly test a wayland desktop (from ubuntu-desktop as I recall) on a Pi4 4Gb with a...
by waveform80
Fri May 01, 2020 9:57 am
Forum: Ubuntu
Topic: Ubuntu 20.04 (Focal Fossa)
Replies: 55
Views: 13883

Re: Ubuntu 20.04 (Focal Fossa)

is that "renderer: networkd" needed now? it's not in the how to. everything else is pretty much what i got. i removed the "dhcp4: true" cause it just kept throwing errors in "sudo netplan --debug try" No, "renderer: networkd" was suggested as a work-around fo...
by waveform80
Fri May 01, 2020 9:50 am
Forum: Ubuntu
Topic: Ubuntu 20.04 (Focal Fossa)
Replies: 55
Views: 13883

Re: Ubuntu 20.04 (Focal Fossa)

does upgrade from daily build, its the same? That depends when your daily build dates from. At some point in the development cycle (checks ... 1 month ago apparently), some contents of the boot partition were changed (merging nobtcmd/btcmd.txt back into cmdline.txt for example) and those things are...
by waveform80
Thu Apr 30, 2020 8:54 pm
Forum: Ubuntu
Topic: GPIO configuration on Ubuntu
Replies: 9
Views: 6318

Re: GPIO configuration on Ubuntu

Thanks for the reply. I tried to modify firmware/config.txt, usrconfig.txt and also the config.txt at same location when havins raspi-config installed in Ubuntu Mate. Always the same result... After modifiying the desired configuration and reboot, the RPI4 enter into a loop trying to boot: the colo...
by waveform80
Thu Apr 30, 2020 8:49 pm
Forum: Ubuntu
Topic: rpi-4 no hdmi ubuntu 19.10
Replies: 9
Views: 12476

Re: rpi-4 no hdmi ubuntu 19.10

I know nothing bout the pi4, but have you tried adding # Enable audio (loads snd_bcm2835) dtparam=audio=on to config.txt? I tried it and it works for me. Thank you so much! But I have an another issue. I installed Ubuntu 19.10 on Raspberry Pi 4 and I used my old PC Monitor. There is no HDMI port. B...
by waveform80
Thu Apr 30, 2020 8:44 pm
Forum: Ubuntu
Topic: Ubuntu 20.04 Install Fail
Replies: 43
Views: 20960

Re: Ubuntu 20.04 Install Fail

Sorry to skip your previous post on desktop icons. Unfortunately that's something I know absolutely nothing about (99.9% of my time on a Pi is spent at the console, and my desktop dabbling is little more than that: just dabbling). Now that I've gotten the Raspberry Pi 4 back up to par, is there a wa...
by waveform80
Thu Apr 30, 2020 8:31 pm
Forum: Ubuntu
Topic: Ubuntu 20.04 Install Fail
Replies: 43
Views: 20960

Re: Ubuntu 20.04 Install Fail

I installed the Software Center shortly after putting up my last post, and I can confirm that it's labeled 'Software' are you had stated. I feel like I'm jumping the gun with some of the subject matter that I've been posting, but it's really hard to find a definitive resource for some things. I kee...
by waveform80
Thu Apr 30, 2020 5:16 pm
Forum: Ubuntu
Topic: Help to install Spotify in my RPI 4 with Ubuntu 20.04
Replies: 2
Views: 6188

Re: Help to install Spotify in my RPI 4 with Ubuntu 20.04

First there is no linux version of Spotify on ARM. If I may ask, why are you trying to go to the latest which maybe isn't tested thoroughly on RPI. Why not stick to raspbian. It's tested about as thoroughly as we can manage (which, knowing a bit about what goes on behind the scenes here, is pretty ...
by waveform80
Thu Apr 23, 2020 8:05 pm
Forum: Ubuntu
Topic: Ubuntu 20.04 (Focal Fossa)
Replies: 55
Views: 13883

Ubuntu 20.04 (Focal Fossa)

Ubuntu 20.04 Ubuntu 20.04 (aka Focal Fossa) is out, including arm64 and armhf builds for the Pi! There's been a lot of testing behind the scenes on this one, but there's still a few rough edges so do be sure to check the release notes (especially if you have a Pimoroni fan-shim !). Probably the eas...
by waveform80
Thu Apr 23, 2020 10:24 am
Forum: Ubuntu
Topic: Ubuntu 20.04 LTS screen too large to fit tv issue
Replies: 7
Views: 9027

Re: Ubuntu 20.04 LTS screen too large to fit tv issue

No clue what’s different between the two hdmi groups that will make group 1 work but group 2 cause the issue. HDMI group 1 consists of the CEA (Consumer Electronics Association) modes; these are modes typically used on TVs. HDMI group 2 is DMT (Display Monitor Timings); these modes are typically us...
by waveform80
Sat Apr 18, 2020 3:03 pm
Forum: Ubuntu
Topic: Ubuntu 20.04 LTS screen too large to fit tv issue
Replies: 7
Views: 9027

Re: Ubuntu 20.04 LTS screen too large to fit tv issue

If the display is falling off the edges then you want overscan enabled (in other words, the opposite of "disable_overscan=1"). For some reason our default framebuffer (the one without the FKMS overlay) seems to disable overscan implicitly (I suspect something to do with u-boot that I haven...
by waveform80
Fri Apr 17, 2020 11:54 pm
Forum: Ubuntu
Topic: Ubuntu 20.04 Install Fail
Replies: 43
Views: 20960

Re: Ubuntu 20.04 Install Fail

Hey Dave, I just wanted to let you know that I threw in the towel and grabbed a fresh image from the Ubuntu website that was specificially for 20.04. I installed the server and then the desktop on top of that afterwards. I tried your suggestion last night with flashing a duplicate 20.04 to another ...

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