Intel: Brief blanking of external screen when querying xrandr 1.2

[Andreas Schildbach]

Hi Keith,

thanks for answering.

> If your machine cannot ever have a TV adapter (even with a docking
> station), we can add a quirk to the driver to never look at the TV
> output. That requires the pci subsystem values (from lspci -n -v) to
> plug into the quirk table.

I guess that is the case for the Dell Latitude X1. There is no docking
station and the only video output available is a VGA port (and there is
no adapter cable)...

00:02.0 0300: 8086:2592 (rev 03) (prog-if 00 [VGA])
        Subsystem: 1028:01a3
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at dff00000 (32-bit, non-prefetchable) [size=512K]
        I/O ports at ec38 [size=8]
        Memory at c0000000 (32-bit, prefetchable) [size=256M]
        Memory at dfec0000 (32-bit, non-prefetchable) [size=256K]
        Capabilities: [d0] Power Management version 2

00:02.1 0380: 8086:2792 (rev 03)
        Subsystem: 1028:01a3
        Flags: bus master, fast devsel, latency 0
        Memory at dff80000 (32-bit, non-prefetchable) [size=512K]
        Capabilities: [d0] Power Management version 2

Regards,

Andreas