OEM Priority Project

Dell logo pops up for a while before gdm hand over to X session

Bug #1916850 reported by Kai-Chuan Hsieh
10
This bug affects 1 person
Affects Status Importance Assigned to Milestone
OEM Priority Project
New
Undecided
Unassigned
gdm3 (Ubuntu)
New
Undecided
Unassigned
plymouth (Ubuntu)
Incomplete
Undecided
Unassigned

Bug Description

[Summary]
Attach a monitor and output from Nvidia dGPU.
The Dell logo(BGRT image) pops up for a while before hand over to x session.

[Steps to reproduce]
* Prerequisite: Disable the auto-login
1. Power on the system
2. Enter the password
3. Check if the Dell logo pops
4. Suspend the system
5. Wake up the system and then enter the password
6. Check if the Dell logo pops up

[Expected result]
No Dell logo pops up in step 3 and step 6

[Actual result]
The Dell logo popped up in an instant and then disappeared

[Failure rate]
2/3

Kai-Chuan Hsieh (kchsieh)
tags: added: oem-priority originate-from-1909009 somerville
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

Sounds like plymouthd is kicking in?

Revision history for this message
Kai-Chuan Hsieh (kchsieh) wrote :

Hello Daniel,

I remembered the small running circle before the login page is plymouth, but BRGT is plotted by fbcon driver, but I didn't remember it very clearly.

My question is if gdm can help to blank FB before hand over to x session?

Currently, I only see the issue on NV card but not i915 and amdgpu, but I wonder if we can do something to better support it from userspace.

Thanks,

Revision history for this message
Daniel van Vugt (vanvugt) wrote :

The first thing to check is whether it's plymouth displaying the logo. It is meant to do so at certain times, but usually fails on Nvidia due to bug 1868240. Try booting with the 'nosplash' kernel parameter as that should remove plymouth from the equation.

Changed in plymouth (Ubuntu):
status: New → Incomplete
jeremyszu (os369510)
tags: added: originate-from-1916845 sutton
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