rv100, second video card, tv out

Eric Moreau eric at acmelinux.com
Mon Mar 14 19:05:45 PDT 2011

Hi everyone,

Here is a pretty useless post because it involves old hardware,
but i'd like to know if anyones has a clue on this:

Software (uname -a on Fedora 14):
Linux (hostname obfuscated) #1 SMP Mon Feb 7 07:06:44 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

Hardware (snippets from lshw):
 description: Motherboard
       product: P5GC-MX
       vendor: ASUSTeK Computer INC.
 description: CPU
          product: Intel(R) Core(TM)2 Duo CPU     E4500  @ 2.20GHz
  description: Display controller
             product: 82945G/GZ Integrated Graphics Controller
             vendor: Intel Corporation
 description: VGA compatible controller
                product: Radeon RV100 QY [Radeon 7000/VE]
                vendor: ATI Technologies Inc

I would like to use the old radeon card for tv-output.
If i use it as the primary video card, everything goes well, tv-out
is detected and usable with xrandr.

If I use the onboard intel video as primary video, i get this from dmesg

[    1.361256] [drm] No TV DAC info found in BIOS
[    1.361259] [drm] DFP table revision: 3
[    1.361312] [drm] Radeon Display Connectors
[    1.361314] [drm] Connector 0:
[    1.361316] [drm]   VGA
[    1.361318] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[    1.361320] [drm]   Encoders:
[    1.361321] [drm]     CRT1: INTERNAL_DAC1
[    1.361323] [drm] Connector 1:
[    1.361324] [drm]   DVI-I
[    1.361326] [drm]   HPD1
[    1.361328] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[    1.361330] [drm]   Encoders:
[    1.361331] [drm]     CRT2: INTERNAL_DAC2
[    1.361333] [drm]     DFP1: INTERNAL_TMDS1

Eric Moreau
eric at acmelinux.com

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