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hakuna-m / wubiuefi

fork of Wubi (https://launchpad.net/wubi) for UEFI support and for support of recent Ubuntu releases
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Issues on Ubuntu 20.04 LTS #193

Open hohoaisan opened 4 years ago

hohoaisan commented 4 years ago

Wubiuefi almost works well with Ubuntu 20.04. There are 2 problems:

  1. After the installation completed, the system leaves the screen in black, user must force shutdown to boot into Ubuntu normally
  2. There is no grub menu showed up during boot, it was just a "_" in about 5 secs and then Ubuntu booted up. Grub customizer shows that Grub config is still fine (with 5s waiting time and Windows Boot Manager) image

I used Wubi for Ubuntu 19.10 (rev. 338) for installing it

hakuna-m commented 4 years ago 
1. user must force shutdown to boot into Ubuntu normally

I can confirm the need of a manual reboot for our tests, but no black screen. 

2. There is no grub menu showed up during boot,

I cannot confirm that issue for our tests.

Probably, the result depends on the used computer. I assume a general issue of Ubuntu 20.04 with specific hardware.

ibrijesh commented 4 years ago

Hey i am using HP intel core i3-4010 CPU@1,70 GHz ,4GB RAM and 64-bit OS i had also faced the issue of black screen after installation and there was no grub boot menu during boot.

"cannot transition to power state d3hot for parent in" this mesaage was showing during black Screen

i used Wubi for Ubuntu 20.04 (rev. 339)

Please help

hakuna-m commented 4 years ago

"cannot transition to power state d3hot for parent in" this mesaage was showing during black Screen

IMHO, there are different black screens: Black screens with a black background and messages in other colors and black screens only.

I have always a black screen with some messages immediately before rebooting, especially if I use "Verbose mode" from install GRUB menu. see How can I set boot options ?

So in my case, the difference is not the black screen, it is the not working reboot only. Pressing the key sequence REISUB with Magic SysRq key helps. Additionaly, that workaround is only needed one-time.

In my case, there is also a difference in booting into Ubuntu 20.04 comparing it with previous Ubuntu versions. The splash screen uses like Windows the manufacturer logo of the notebook. Regarding release notes it should be a new feature:

New graphical boot splash (integrates with the system BIOS logo).

Maybe, the integration is not always a good idea. If integration does not work, there is a black screen instead of a BIOS logo.

But as I wrote in a previous post, I assume general issues of Ubuntu 20.04 . i.e. you need workarounds for Ubuntu 20.04 but no special workarounds for Wubiuefi.

e.g. black screen on a DELL machine needs BIOS setting "PTT off" for Ubuntu 20.04: see https://askubuntu.com/a/1230384

If the problem is the not working splash screen, try to disable splash screen. Use Verbose mode during install.

Try to remove boot options "quiet splash" also after installation. Maybe, the invisible GRUB menu depends on using splash screen before reboot. Maybe, the GRUB menu appears again, if you shut down the computer completely and switch on after that. Probably, some time optimized reboots do not reset all settings. Especially, if BIOS features are affected.

IMHO, messages like

"cannot transition to power state d3hot for parent in"

depends on other new features like

Significant power-saving improvements.