Hello, Hans (on CC) asked me to file a bug for this, but I wanted to ask on the mailing list first in case I am misreading the code. We have been looking at a problem where GNOME Shell on a VirtualBox guest with the Additions video driver becomes unusable when a mode set operation fails (due to too little video RAM allocated). A further successful mode set cures things. It seems to me that this is due to Mutter failing to check the return value of meta_gpu_kms_flip_crtc() and assuming that the mode set succeeded. Does that sound likely? In case it is helpful to know, the video driver still does not support either atomic or page flips. Regards Michael -- Michael Thayer | VirtualBox engineer ORACLE Deutschland B.V. & Co. KG | Werkstr. 24 | D-71384 Weinstadt ORACLE Deutschland B.V. & Co. KG Hauptverwaltung: Riesstraße 25, D-80992 München Registergericht: Amtsgericht München, HRA 95603 Komplementärin: ORACLE Deutschland Verwaltung B.V. Hertogswetering 163/167, 3543 AS Utrecht, Niederlande Handelsregister der Handelskammer Midden-Nederland, Nr. 30143697 Geschäftsführer: Alexander van der Ven, Jan Schultheiss, Val Maher
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