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I'm trying to get a dual monitor setup on a new computer. The computer is a HP Pavilion P7-1254 with the A6-3620 APU.
I've done a fresh install of Debian 'Sid'. When I try to use the second monitor (VGA-0), it only goes into stand by. Output of the system booting is shown on both monitors until the xserver kicks in, then the seconds monitor goes into stand by, but does not complain about no signal. I've also tried other monitors to rule out the monitor itself.
Code:
00:01.0 VGA compatible controller: ATI Technologies Inc Device 964a (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device 2acf
Flags: bus master, fast devsel, latency 0, IRQ 45
Memory at c0000000 (32-bit, prefetchable) [size=256M]
I/O ports at f000 [size=256]
Memory at feb00000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at <unassigned> [disabled]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Kernel driver in use: radeon
Code:
Screen 0: minimum 320 x 200, current 3040 x 900, maximum 8192 x 8192
VGA-0 connected 1440x900+1600+0 (normal left inverted right x axis y axis) 408mm x 255mm
1440x900 59.9*+ 75.0
1280x1024 75.0 60.0
1360x768 60.0
1024x768 75.1 70.1 60.0
800x600 72.2 75.0 60.3
640x480 72.8 75.0 60.0
720x400 70.1
DVI-0 connected 1600x900+0+0 (normal left inverted right x axis y axis) 443mm x 249mm
1600x900 60.0*+
1280x1024 75.0 60.0
1440x900 59.9
1280x960 60.0
1280x800 59.8
1152x864 75.0
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 72.8 75.0 66.7 60.0
720x400 70.1
xrandr and KDE's monitor settings show the second monitor as working fine. The available modes xrandr shows match the monitors specs. Even while changing modes, even to something that should be invalid, the monitor never leaves standby.
Well I thank you for the help, but I ended up installing a 9800GT into the machine. Even with the nouveau drivers, I had no problem using xrandr to set up dual monitors. I really didn't feel like messing with FGLRX drivers, which doesn't seem to support the A6-3620 GPU (HD6530D) at the moment.
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