-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On Thu, 2022-01-20 at 13:59 +0100, Vincent Lefevre wrote: > Additional details: > > The resolution of the laptop screen is 3200×1800. > The resolution of the external monitor is 3840×2160. > A 3840×2160 virtual screen is used. > > I suspect that the greeter thinks that there is a second separate > screen (instead of a mirrored screen), and it puts the menu bar > and login dialog there, so that I cannot see them. The following > workaround would confirm that: set active-monitor=1 in the greeter > config file (/etc/lightdm/lightdm-gtk-greeter.conf). With this > setting, the issue on startup seems to have completely disappeared > (still no issues either with a one-monitor setup). Note: some users > say active-monitor=0, e.g.
Hi Vincent, out of curiosity, did you try to move the mouse (and bring it “back” to the main screen) and see if the login dialog appears? My main setup also uses a dual screen (docked laptop with an external screen), and I didn't (yet) experienced the issue you describe, but both my screens have pretty similar resolutions (laptop is 1920×1080, external screen is 1920×1200). Also are both screens on and visible? Regards, - -- Yves-Alexis -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEE8vi34Qgfo83x35gF3rYcyPpXRFsFAmHu4rsACgkQ3rYcyPpX RFtF5AgAuC28bTr9VLnxTdrMqSDvC+w0SgdA3IzTSpvqYms13dCpWs+dcVGzUckU 01sEAllZZIsF0SJzRCkZtDqR7j1+LDyiWO//CaQBAibjF/pp/mlfYOovc7ZxA9kV G49y903snFbx8eWECYWbshYFSETEKxyuDtqs4eRfXiaQW10ore/xC5om+CHSqREg TM6GTU57smTo2J0xJ9UVIuZy2V2pYHrDm/c9o5r/z42n7PfRlfqgUZJtMhHO2Oju U6i0ylOPErbQygmoC55Oozz3zGf2ce/gxY5bBhiguSK1C1OFbmNhPpMvbXg5blmf 7J3SMBuEkLJR6kLywuB6UFhvf9aj8w== =a6/p -----END PGP SIGNATURE-----
