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Dear all,
I would like to use archlinux to connect through HDMI my nVidia GeForce GTX 460M with a Samsung LCD TV, and use the latter as a secondary display in a TwinView setting (with the proprietary driver).
nvidia-settings recognizes the TV, but with any of the proposed resolutions the TV says: mode not supported.
The TV manual reports this table for HDMI connections:
Resolution H Freq (kHz) V Freq (Hz) Pixel Clock Freq (MHz) Sync Polarity (H/V)
IBM
640×350 31.469 70.086 25.175 +/-
720×400 31.469 70.087 28.322 -/+
640×480 31.469 59.940 25.175 -/-
VESA
800×600 37.879 60.317 40.000 +/+
1024×768 48.364 60.000 65.000 -/-
1440×900 55.935 59.887 106.500 -/+
1440×900 70.635 74.984 136.750 -/+
After looking at the latest documentation available on the nvidia website, I tried adding
Option "TwinView"
Option "HorizSync" "DFP-1: 37.879-70.635"
Option "VertRefresh" "DFP-1: 60.000-74.984"
Option "ConnectedMonitor" "DFP-0, DFP-1"
Option "MetaModes" "DFP-0: 1980x1020, DFP-1: NULL; DFP-0: NULL, DFP-1: 1440x900"
in my xorg.conf.d/20-nvidia.conf, knowing that DFP-0 is my laptop display and DFP-1 is the HDMI one, but I still get the "mode not supported error" in the TV.
My questions are: how can I take advantage of the resolution info in the table? Should I add a Monitor section in the xorg conf? What should be written inside it? How will the driver be able to associate that Monitor section with the right monitor and not with the LVDS one, perhaps screwing up everything?
If anybody can help me, it would be greatly appreciated.
Thanks,
Giacomo
P.S.1: with the nouveau drivers and xrandr, TV works, at least at full resolution (but I need the proprietary drivers because of performance/tearing problems)
P.S.2: on windows the TV works but with a wrong resolution (part of the screen is out of the TV borders), so I don't think the modeline I get with PowerStrip is really useful.
Last edited by jackjackk (2012-01-09 14:13:20)
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