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ichbinesderelch

Member

Registered: 2008-01-17

Posts: 203

hdmi matrix losing signal

So recently i bought myself a hdmi matrix for more hdmi inputs. Plugged into it is my main computer, my xbox and my htpc. Its working great so far, the only problem is that if i play movies from my htpc it loses the signal from time to time. The htpc is an nvidia ion board running xbmc-standalone with nvidia driver.

lspci gives

00:00.0 Host bridge: nVidia Corporation MCP79 Host Bridge (rev b1)
00:00.1 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)
00:03.0 ISA bridge: nVidia Corporation MCP79 LPC Bridge (rev b3)
00:03.1 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)
00:03.2 SMBus: nVidia Corporation MCP79 SMBus (rev b1)
00:03.3 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1)
00:03.5 Co-processor: nVidia Corporation MCP79 Co-processor (rev b1)
00:04.0 USB controller: nVidia Corporation MCP79 OHCI USB 1.1 Controller (rev b1)
00:04.1 USB controller: nVidia Corporation MCP79 EHCI USB 2.0 Controller (rev b1)
00:06.0 USB controller: nVidia Corporation MCP79 OHCI USB 1.1 Controller (rev b1)
00:06.1 USB controller: nVidia Corporation MCP79 EHCI USB 2.0 Controller (rev b1)
00:08.0 Audio device: nVidia Corporation MCP79 High Definition Audio (rev b1)
00:09.0 PCI bridge: nVidia Corporation MCP79 PCI Bridge (rev b1)
00:0a.0 Ethernet controller: nVidia Corporation MCP79 Ethernet (rev b1)
00:0b.0 IDE interface: nVidia Corporation MCP79 SATA Controller (rev b1)
00:0c.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)
00:10.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)
00:15.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)
00:16.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)
00:17.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)
00:18.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1)
03:00.0 VGA compatible controller: nVidia Corporation ION VGA (rev b1)
04:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)

The configuration is quite simple, there is the standard 20-nvidia.conf in /etc/xorg.conf.d/ and pretty much nothing more, i can't find any error in Xorg.0.log exept for some warning, witch shouldn't matter that much

[  5765.490] (WW) NVIDIA(0): Option "TwinViewXineramaInfoOrder" requested "CRT", but no
[  5765.490] (WW) NVIDIA(0):     such display device could be found, or all display devices
[  5765.490] (WW) NVIDIA(0):     by that name are currently unavailable.
[  5765.490] (WW) NVIDIA(0): Option "TwinViewXineramaInfoOrder" requested "TV", but no such
[  5765.490] (WW) NVIDIA(0):     display device could be found, or all display devices by
[  5765.490] (WW) NVIDIA(0):     that name are currently unavailable.

Only thing i can see from that is that it uses nvidia-auto-select to choose the right resolution, which is the correct one.
I checked all the cabels, i replaced the cables with that from the working devices(no problems with xbox or my main pc), but still the same problem. So i'm beginning to think that i did configure something wrong, but can't figure it out perhaps. System is up to date with all packages.
So any hints or ideas i could try will be greatly appreciated. One thing that makes me think that maybe its the hdmi matrix is that i don't get a lost signal when i plug the htpc directly into the beamer. But maybe there are some further ideas what i could try do configure differently. The resolution and hertz of all devices are the same and i played the same movies on my main pc and my htpc, so the hdmi matrix should be able to handle it.

So thanks in advanced!

thanks in advanced!