Subject=Re: Re: Third Monitor Stopped Working

["Barak A. Pearlmutter" <barak@pearlmutter.net>]

> The X server may need a little more explicit configuration:

Thanks, that sounded like a good idea.

But it didn't work either for a new size or even when I give a size
which was the same as the default size:

$ cat /etc/X11/xorg.conf
Section "Screen"
    Identifier "TarskTripleTrouble"
    SubSection "Display"
        Virtual 8192 8192
    EndSubSection
EndSection

The server fails to come up, with the tail of
~/.local/share/xorg/Xorg.0.log reading

[   621.616] (II) modeset(0): Using default gamma of (1.0, 1.0, 1.0)
unless otherwise stated.
[   621.616] (==) modeset(0): DPI set to (96, 96)
[   621.616] (II) Loading sub module "fb"
[   621.616] (II) LoadModule: "fb"
[   621.616] (II) Loading /usr/lib/xorg/modules/libfb.so
[   621.616] (II) Module fb: vendor="X.Org Foundation"
[   621.616] compiled for 1.18.4, module version = 1.0.0
[   621.616] ABI class: X.Org ANSI C Emulation, version 0.4
[   621.616] (II) UnloadModule: "fbdev"
[   621.616] (II) Unloading fbdev
[   621.616] (II) UnloadSubModule: "fbdevhw"
[   621.616] (II) Unloading fbdevhw
[   621.616] (II) UnloadModule: "vesa"
[   621.616] (II) Unloading vesa
[   621.616] (==) Depth 24 pixmap format is 32 bpp
[   621.680] (==) modeset(0): Backing store enabled
[   621.680] (==) modeset(0): Silken mouse enabled
[   621.680] (II) modeset(0): RandR 1.2 enabled, ignore the following
RandR disabled message.
[   621.680] (==) modeset(0): DPMS enabled
[   621.680] (II) modeset(0): [DRI2] Setup complete
[   621.681] (II) modeset(0): [DRI2]   DRI driver: i965
[   621.681] (II) modeset(0): [DRI2]   VDPAU driver: i965
[   621.721] (EE) modeset(0): failed to set mode: No space left on device
[   621.721] (EE)
Fatal server error:
[   621.721] (EE) AddScreen/ScreenInit failed for driver 0
[   621.721] (EE)
[   621.721] (EE)