Hi everybody, I'm back with a brand-new workstation setup to try Qubes on. I bought a Matrox C680 and hooked up six monitors to its DisplayPort outputs. I'm using Qubes R3.2 fully updated as of now, with XFCE.
Long story short, dom0 is able to use all six monitors in the configuration I set up (two rows, three monitors each row) - it was not that easy, had to manually fix the numbers in ~/.config/xfce4/xfconf/xfce-perchannel-xml/displays.xml because the graphical display configuration tool kept being a couple of pixels off, and it was very frustrating. Anyway my problem is with AppVMs. Once they are started, it seems like their virtual screen is "clipped" with respect to that of dom0. Namely, when I try to perform any mouse action on windows in the first two monitors (top-left and top-middle), nothing happens in the appVM windows contents (i.e. they do not react to any event, hover nor click). I've had this problem before, and that was when the screen geometry changed after the VMs were started - I used to have a Qubes laptop, and changing the display placement in dom0 after VMs were started did result in clipped "virtual screens". My question is: does Qubes R3.2 support notifying screen change event to AppVM? would that be a security problem? Is there a way for me to "tell" specific AppVMs that dom0's screen geometry has changed, maybe telling the new situation too? Simpler; since my situation is fixed (i.e. I won't be adding nor moving any monitors around), can I fix this once and for all by copying the same geometry I put in my user's XFCE configuration into some global XFCE file? I noticed that VMs are started with the login-screen display geometry, but that is changed to the actual displays.xml settings once the user logs in, so maybe setting that as the default geometry could change the virtual screen seen by AppVMs... Could that work? TIA, -- Alex -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to firstname.lastname@example.org. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/7b4f306d-06e5-e961-f7c4-ca3b9f187186%40gmx.com. For more options, visit https://groups.google.com/d/optout.
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