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GeForce 9800 GX2 - Only one GPU reported under linux
Hi folks,
My Dual GPU 9800 GX2 has developed a problem! Under Linux only 1 GPUis ever reported, this did not used to be the case, and has only come apparent since installing Kubuntu 11.10. However I have tested by re-installing Mint 11 (Where this used to correctly report both GPU's and SLi configuration, however this too only reports a single GPU now. Is this a hardware issue, or has the latest Linux GeFOrce driver got an issue? below is the result of LSPCI and nvidia-smi Regards Craig. craig@AmsTech-Desktop:~$ lspci 00:00.0 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller (rev a2) 00:01.0 ISA bridge: nVidia Corporation MCP78S [GeForce 8200] LPC Bridge (rev a2) 00:01.1 SMBus: nVidia Corporation MCP78S [GeForce 8200] SMBus (rev a1) 00:01.2 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller (rev a1) 00:01.3 Co-processor: nVidia Corporation MCP78S [GeForce 8200] Co-Processor (rev a2) 00:01.4 RAM memory: nVidia Corporation MCP78S [GeForce 8200] Memory Controller (rev a1) 00:02.0 USB Controller: nVidia Corporation MCP78S [GeForce 8200] OHCI USB 1.1 Controller (rev a1) 00:02.1 USB Controller: nVidia Corporation MCP78S [GeForce 8200] EHCI USB 2.0 Controller (rev a1) 00:04.0 USB Controller: nVidia Corporation MCP78S [GeForce 8200] OHCI USB 1.1 Controller (rev a1) 00:04.1 USB Controller: nVidia Corporation MCP78S [GeForce 8200] EHCI USB 2.0 Controller (rev a1) 00:06.0 IDE interface: nVidia Corporation MCP78S [GeForce 8200] IDE (rev a1) 00:07.0 Audio device: nVidia Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio (rev a1) 00:08.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1) 00:09.0 IDE interface: nVidia Corporation MCP78S [GeForce 8200] SATA Controller (non-AHCI mode) (rev a2) 00:0a.0 Ethernet controller: nVidia Corporation MCP77 Ethernet (rev a2) 00:10.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express Bridge (rev a1) 00:12.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express Bridge (rev a1) 00:13.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1) 00:14.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge (rev a1) 00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control 00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Link Control 01:09.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07) 01:09.1 Input device controller: Creative Labs SB Live! Game Port (rev 07) 01:0a.0 FireWire (IEEE 1394): Agere Systems FW322/323 (rev 70) 02:00.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for Quadro Plex S4 / Tesla S870 / Tesla S1070 / Tesla S2050 (rev a2) 03:00.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for Quadro Plex S4 / Tesla S870 / Tesla S1070 / Tesla S2050 (rev a2) 03:02.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for Quadro Plex S4 / Tesla S870 / Tesla S1070 / Tesla S2050 (rev a2) 05:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 9800 GX2] (rev a2) craig@AmsTech-Desktop:~$ craig@AmsTech-Desktop:~$ nvidia-smi Gpus found in probe: Found Gpuid 0x5000 Attaching all probed Gpus...OK Getting unit information...OK Getting all static information.. craig@AmsTech-Desktop:~$ |
#2
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GeForce 9800 GX2 - Only one GPU reported under linux
Craig Harrison wrote:
Hi folks, My Dual GPU 9800 GX2 has developed a problem! Under Linux only 1 GPUis ever reported, this did not used to be the case, and has only come apparent since installing Kubuntu 11.10. However I have tested by re-installing Mint 11 (Where this used to correctly report both GPU's and SLi configuration, however this too only reports a single GPU now. Is this a hardware issue, or has the latest Linux GeFOrce driver got an issue? below is the result of LSPCI and nvidia-smi Regards Craig. craig@AmsTech-Desktop:~$ lspci 02:00.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for Quadro Plex S4... 03:00.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for Quadro Plex S4... 03:02.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for Quadro Plex S4... 05:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 9800 GX2] (rev a2) resend - problem with E-S server... The person here, has both a 9800GX2 and a 9400GT card. The first line is the 9400GT, and the rest is the 9800GX2. http://www.nvnews.net/vbulletin/showthread.php?t=154384 01:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9400 GT] (rev a1) 07:00.0 PCI bridge: nVidia Corporation PCI express bridge for Quadro Plex S4... 08:00.0 PCI bridge: nVidia Corporation PCI express bridge for Quadro Plex S4... 08:02.0 PCI bridge: nVidia Corporation PCI express bridge for Quadro Plex S4... 09:00.0 3D controller: nVidia Corporation G92 [GeForce 9800 GX2] (rev a2) 0a:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 9800 GX2] (rev a2) In my non-expert opinion, yes, one of your GPUs is missing. It looks like the PCI switch chip is still there, and one GPU. Have you ever taken your 9800GX2 apart ? Maybe it's a bad connection between the two PCBs. The other thing that is puzzling, is the identifier for the switch chip. ******* If I look at this one... And selectively snip bits of it. http://mushkingames.com/phpbb2/viewt...13090&start=15 [ AFAIK B=Bus D=Device F=Function ] B01 D00 F00: nVIDIA nForce 200 (BR04) PCI Express 2.0 Switch B02 D00 F00: nVIDIA nForce 200 (BR04) PCI Express 2.0 Switch B02 D02 F00: nVIDIA nForce 200 (BR04) PCI Express 2.0 Switch B03 D00 F00: nVIDIA GeForce 9800 GX2 Video Adapter B04 D00 F00: nVIDIA GeForce 9800 GX2 Video Adapter The BR04 may be Vendor ID 0x10DE Model ID 0x05BE when I compare it to the list here (NF200 entries). http://pciids.sourceforge.net/pci.ids So I'm guessing right now, that it isn't a problem with a mis-identified NF200. More likely, it's something with GPU or wiring between GPU and the switch chip. The entries should start with simple bus probes to config space. I don't know if something like a missing VESA rom info, would do that, or whether what you're seeing, is a failure to get an ACK of any sort, back from one of the GPUs. It could be as simple as snapping one of the surface mount coupling caps off the capacitively coupled bus lanes. If you pick the right lane for that, you can prevent detection. While PCI Express buses can dynamically resize (thus avoiding some lane failures), I don't think they can work around any arbitrary lane failing. Some lanes are more important than others (like say, lane zero). I suppose it could also be something like a power converter failure next to the GPU, denying power to the core of the GPU, and preventing it from answering probes. Just a non-expert guess, Paul |
#3
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GeForce 9800 GX2 - Only one GPU reported under linux
Hi Paul,
What an extensive answer, I notice that you often invest much time in helping people in this ng, that is great. I have a question and also something to say. Were you the guy I had a discussion with, I think by now several years ago, about the cooling of an AGP-PCI-E bridge chip? If yes, I'ld like to say that you were right, even more when it came to the things that had nothing to do with that subject but that were about me ;-). (If you'ld think "maybe I was but I have a hard time recalling it" then don't worry, then it will not have been you, I am quite sure the person that I have in mind, and when reading your style of writing you could very well have be the one, would remember immediately). Apologies and Thanks! If you weren't that guy, the "Thanks" part remains for your efforts to help people with video card troubles. Yours sincerely, Rene |
#4
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GeForce 9800 GX2 - Only one GPU reported under linux
Rene wrote:
Hi Paul, What an extensive answer, I notice that you often invest much time in helping people in this ng, that is great. I have a question and also something to say. Were you the guy I had a discussion with, I think by now several years ago, about the cooling of an AGP-PCI-E bridge chip? If yes, I'ld like to say that you were right, even more when it came to the things that had nothing to do with that subject but that were about me ;-). (If you'ld think "maybe I was but I have a hard time recalling it" then don't worry, then it will not have been you, I am quite sure the person that I have in mind, and when reading your style of writing you could very well have be the one, would remember immediately). Apologies and Thanks! If you weren't that guy, the "Thanks" part remains for your efforts to help people with video card troubles. Yours sincerely, Rene I'm more like a USENET Cheerleader than anything else :-) Paul |
#5
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GeForce 9800 GX2 - Only one GPU reported under linux
On 10/26/2011 03:52 PM, Paul wrote:
Rene wrote: Hi Paul, What an extensive answer, I notice that you often invest much time in helping people in this ng, that is great. I have a question and also something to say. Were you the guy I had a discussion with, I think by now several years ago, about the cooling of an AGP-PCI-E bridge chip? If yes, I'ld like to say that you were right, even more when it came to the things that had nothing to do with that subject but that were about me ;-). (If you'ld think "maybe I was but I have a hard time recalling it" then don't worry, then it will not have been you, I am quite sure the person that I have in mind, and when reading your style of writing you could very well have be the one, would remember immediately). Apologies and Thanks! If you weren't that guy, the "Thanks" part remains for your efforts to help people with video card troubles. Yours sincerely, Rene I'm more like a USENET Cheerleader than anything else :-) Paul Cheerleaders can bring light into the most dense darkness. And wasn't it Paul himself who wrote "all things that are in the dark, will be brought into the light"? ;-) Thanks again! I hope you are doing fine and wish the best of luck, but I am sure you already will meet a lot of luck in your daily life. Nevertheless, I am also sure that my wishing it will make it even more prominent. Sincerely, Rene P.S. Sorry to other subscribers for my OT talking and to OP for hijacking the thread, I'll stop now. |
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