Screen stuck at "A start job is running for detect the avaiable GPUs and deal any system change"

[Hugo Delaunay]

I have ASUS Laptop X53BR-SX013V with 2 GPU :

IGD : AMD Radeon HD 6320
DGD : AMD Radeon HD 7470M

Booting with "nomodeset" works but I have a bad resolution. If I remove the "nomodeset" option (and "quiet splash"), I get stuck on :

A start job is running for detect the avaiable GPUs and deal any system change (0s / No limit)

I have this message for all versions from 14.04 (not included) to 18.04.

I can wait 10, 20 or 50 min, and it still doesn't boot. I don't have a log or anything else but if you want more information, feel free to ask it !

EDIT :

If it can help, I read on SO that the first graphic card is compatible with radeon driver module, the second not.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1785466/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Steve Langasek (vorlon)]

Plymouth is only the messenger here; the problem lies with whatever package is installed that is running the service that is hanging.

This service is not part of a stock Ubuntu install, which means I can't trivially identify the package that is responsible for this service. I'm therefore marking the bug report as invalid. However, if you can determine which package this message comes from, please reopen it and assign it to that package.

[Hugo Delaunay (skyost)]

Thanks for your response but please can you tell me how can I check what is the responsible package ?

I've made some researches and found that the line "A start job is running for detect the avaiable GPUs and deal any system change" is being outputed by "gpu-manager.service". So the package may be "ubuntu-drivers-common", isn't it ?

[Hugo Delaunay (skyost)]

See : https://github.com/tseliot/ubuntu-drivers-common/blob/master/share/hybrid/gpu-manager.service