GDM: Blank login screen when selecting user whose broker is not available #1357
Description
This is what I see when I select a user whose broker is not available:
It's stuck like that. Sometimes pressing Escape brings me back to the user selection, sometimes it doesn't.
I'm able to reproduce this on Noble and Resolute.
Steps to reproduce:
- Configure a broker (I used
authd-msentraid) - Authenticate with the broker
sudo rm /etc/authd/brokers.d/*sudo systemctl restart authd- In GDM, select the existing authd user. It asks for a password (that's GDM asks for password when broker is disabled #1359).
- Go back to the user selection
- Select the same user again
Relevant logs (from Noble):
Mar 23 15:28:37 ubuntu gnome-shell[17323]: authd: Starting authd protocol
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Got from GDM: {"type":"hello","hello":{"version":1}}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Gdm Reply is type:hello hello:{version:1}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.initHealthCheck{}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Sending to GDM: {"type":"request", "request":{"type":"uiLayoutCapabilities", "uiLayoutCapabilities":{}}}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Got from GDM: {"type":"response","response":{"type":"uiLayoutCapabilities","uiLayoutCapabilities":{"supportedUiLayouts":[{"type":"form","label":"required","wait":"optional:true,false","entry":"optional:chars,chars_password,digits,digits_password"},{"type":"newpassword","label":"required","entry":"optional:chars,chars_password,digits,digits_password"},{"type":"qrcode","label":"required","button":"optional","wait":"required:true,false","content":"required","code":"optional"}]}}}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.supportedUILayoutsReceived{layouts:[]*authd.UILayout{(*authd.UILayout)(0xc00033c3f0), (*authd.UILayout)(0xc00033c690), (*authd.UILayout)(0xc00033c700)}}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.brokersListReceived{brokers:[]*authd.ABResponse_BrokerInfo{(*authd.ABResponse_BrokerInfo)(0xc0000a32c0)}}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.BrokerListReceived{}, brokers: []*authd.ABResponse_BrokerInfo{(*authd.ABResponse_BrokerInfo)(0xc0000a32c0)}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.userSelected{username:"test@ubudev1.onmicrosoft.com"}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.UsernameSelected{}, user: "test@ubudev1.onmicrosoft.com"
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Sending to GDM: {"type":"event", "event":{"type":"brokersReceived", "brokersReceived":{"brokersInfos":[{"id":"local", "name":"local", "brandIcon":""}]}}}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Sending to GDM: {"type":"event", "event":{"type":"userSelected", "userSelected":{"userId":"test@ubudev1.onmicrosoft.com"}}}
Mar 23 15:28:37 ubuntu authd[16997]: Last used broker "2102147668" is not available for user "test@ubudev1.onmicrosoft.com", letting the user select a new one
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.brokerSelectionRequired{}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.ChangeStage{Stage:"brokerSelection"}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: *adapter.authModeSelectionModel: Reset
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.List: Focus
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.listFocused{id:0x1}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.StageChanged{Stage:"brokerSelection"}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Sending to GDM: {"type":"request", "request":{"type":"changeStage", "changeStage":{"stage":"brokerSelection"}}}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Got from GDM: {"type":"eventAck"}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: EventSend&{brokersInfos:{id:"local" name:"local" brand_icon:""}}result<nil>
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Got from GDM: {"type":"eventAck"}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: EventSend&{userId:"test@ubudev1.onmicrosoft.com"}result<nil>
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Got from GDM: {"type":"response","response":{"type":"changeStage","ack":{}}}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Gdm stage change to brokerSelection sent
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Got from GDM: {"type":"pollResponse","pollResponse":[{"type":"brokerSelected","brokerSelected":{"brokerId":"local"}}]}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: GDM poll response: type:brokerSelected brokerSelected:{brokerId:"local"}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.brokerSelected{brokerID:"local"}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.BrokerSelected{BrokerID:"local"}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Sending to GDM: {"type":"event", "event":{"type":"brokerSelected", "brokerSelected":{"brokerId":"local"}}}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: adapter.pamError{status:25, msg:""}
Mar 23 15:28:37 ubuntu gnome-shell[17323]: authd: Broker selected local
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: Got from GDM: {"type":"eventAck"}
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: EventSend&{brokerId:"local"}result<nil>
Mar 23 15:28:37 ubuntu gdm-session-wor[17821]: LOGIN: exiting with error The return value should be ignored by PAM dispatch:
Mar 23 15:28:37 ubuntu authd-pam[17837]: GDM service running without JSON extension, skipping...
Mar 23 15:28:37 ubuntu authd-pam[17837]: LOGIN: exiting with error The return value should be ignored by PAM dispatch
Mar 23 15:28:40 ubuntu systemd[1]: fprintd.service: Deactivated successfully.
Mar 23 15:28:41 ubuntu gnome-shell[17323]: authd: Cancelling authentication
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Connecting to unix:///run/authd.sock
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Sending to GDM: {"type":"hello"}
Mar 23 15:28:42 ubuntu gnome-shell[17323]: authd: Starting authd protocol
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Got from GDM: {"type":"hello","hello":{"version":1}}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Gdm Reply is type:hello hello:{version:1}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.initHealthCheck{}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Sending to GDM: {"type":"request", "request":{"type":"uiLayoutCapabilities", "uiLayoutCapabilities":{}}}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Got from GDM: {"type":"response","response":{"type":"uiLayoutCapabilities","uiLayoutCapabilities":{"supportedUiLayouts":[{"type":"form","label":"required","wait":"optional:true,false","entry":"optional:chars,chars_password,digits,digits_password"},{"type":"newpassword","label":"required","entry":"optional:chars,chars_password,digits,digits_password"},{"type":"qrcode","label":"required","button":"optional","wait":"required:true,false","content":"required","code":"optional"}]}}}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.supportedUILayoutsReceived{layouts:[]*authd.UILayout{(*authd.UILayout)(0xc0003ea540), (*authd.UILayout)(0xc0003ea7e0), (*authd.UILayout)(0xc0003ea850)}}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.brokersListReceived{brokers:[]*authd.ABResponse_BrokerInfo{(*authd.ABResponse_BrokerInfo)(0xc0002922d0)}}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.BrokerListReceived{}, brokers: []*authd.ABResponse_BrokerInfo{(*authd.ABResponse_BrokerInfo)(0xc0002922d0)}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.userSelected{username:"test@ubudev1.onmicrosoft.com"}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Sending to GDM: {"type":"event", "event":{"type":"brokersReceived", "brokersReceived":{"brokersInfos":[{"id":"local", "name":"local", "brandIcon":""}]}}}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.UsernameSelected{}, user: "test@ubudev1.onmicrosoft.com"
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Sending to GDM: {"type":"event", "event":{"type":"userSelected", "userSelected":{"userId":"test@ubudev1.onmicrosoft.com"}}}
Mar 23 15:28:42 ubuntu authd[16997]: Last used broker "2102147668" is not available for user "test@ubudev1.onmicrosoft.com", letting the user select a new one
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.brokerSelectionRequired{}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.ChangeStage{Stage:"brokerSelection"}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: *adapter.authModeSelectionModel: Reset
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.List: Focus
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.listFocused{id:0x1}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: adapter.StageChanged{Stage:"brokerSelection"}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Sending to GDM: {"type":"request", "request":{"type":"changeStage", "changeStage":{"stage":"brokerSelection"}}}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Got from GDM: {"type":"eventAck"}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: EventSend&{brokersInfos:{id:"local" name:"local" brand_icon:""}}result<nil>
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Got from GDM: {"type":"eventAck"}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: EventSend&{userId:"test@ubudev1.onmicrosoft.com"}result<nil>
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Got from GDM: {"type":"response","response":{"type":"changeStage","ack":{}}}
Mar 23 15:28:42 ubuntu gdm-session-wor[17851]: Gdm stage change to brokerSelection sent