Date: Sun, 27 Jul 2014 17:17:43 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: freebsd-x11@FreeBSD.org Subject: Multiple video cards Message-ID: <alpine.BSF.2.11.1407271659520.71758@wonkity.com>
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Test system: FreeBSD 10-STABLE amd64 r269160 AMD A8-3850 APU (Radeon HD6550D) Radeon X1650 PCIe card Under IGX Configuration, the APU motherboard BIOS has a "Surround View" setting. When enabled, the onboard HD6550 GPU remains enabled when an additional video card is connected. With the HD6550 disabled, the X1650 works fine. pciconf shows only one video device. With the HD6550 enabled, both video devices show in pciconf, and X gives the "screens not found" error unless both are defined in xorg.conf. X starts, but xrandr only shows the HD6550, and only the monitors attached to the motherboard video connectors work. xrandr only shows that cards. There may be more settings required in xorg.conf. I think that Xinerama is obsolete, but don't know. Based on some Linux stuff: % xrandr --listproviders RandR 1.4 not supported Is there a right way to define multiple monitors on more than one card for the same virtual screen?
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