I have Ubuntu 12.04 installed on a Dell GX270 Optiplex.
My computer has an Intel video card and an ATi Radeon Stealth 9250 PCI video card.
Ubuntu can only find the on-board Intel video card.
When I boot with BIOS in auto for video card; with my monitor connected to the Radeon card and the HDMI connected to a TV it does not load.
The screen on the TV says Miss matched graphics and the screen on the monitor is black with a flashing curser, or it goes the a purple screen where you can make a choice to run diagnoses.
What I am doing wrong and how can I use my Radeon video card?
Output of lspci
lspci -v -t
-[0000:00]-+-00.0 Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface
+-02.0 Intel Corporation 82865G Integrated Graphics Controller
+-06.0 Intel Corporation 82865G/PE/P Processor to I/O Memory Interface
+-1d.0 Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1
+-1d.1 Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2
+-1d.2 Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3
+-1d.3 Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4
+-1d.7 Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller
+-1e.0-[01]--+-08.0 Advanced Micro Devices, Inc. [AMD/ATI] Device 5920
| +-08.1 Advanced Micro Devices, Inc. [AMD/ATI] Device 5900
| +-0a.0 NEC Corporation OHCI USB Controller
| +-0a.1 NEC Corporation OHCI USB Controller
| +-0a.2 NEC Corporation uPD72010x USB 2.0 Controller
| \-0c.0 Intel Corporation 82540EM Gigabit Ethernet Controller
+-1f.0 Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge
+-1f.1 Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller
+-1f.2 Intel Corporation 82801EB (ICH5) SATA Controller
+-1f.3 Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller
\-1f.5 Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller
The AMD listed here is not the model number for my AMD video card I have a s9250 installed.
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