Kernel Bug - 11.04 through 12.04 - Concerning Multiple GPU graphics cards
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
High
|
Unassigned |
Bug Description
I've tried to get my GTX 295 to work on multiple versions of Ubuntu, but this has failed. I know that the card itself works. I contacted NVidia and they said that it was most likely a kernel bug. I tried 12.04 off of a liveCD and that wasn't any different. I installed the proprietary drivers on a persistence file on the live USB, but that didn't work either -> That's the set-up that you have the information on.
The issue is that the kernel doesn't seem to detect both GPUs on the card properly. My lspci shows 2 GPUs, but it should show three (I currently have a GTX 460 SE and a GTX 295 in the machine, so there should be a GTX 460SE entry and two GTX 295 entries.)
Most lspci methods didn't detect anything else at all, but when I used, 'lspci -A intel-conf2', I got, "00:08.0 Non-VGA unclassified device: Device aebc:75c5". Nothing shows up on that address when I use the other detection methods and I'm not the expert, but I'm guessing that the problem is somewhere in that area.
So I suppose that the reason that I'm giving you all of this extra information is because I don't know what EXACTLY the problem is, but it seems that the kernel is unable to decide how to deal with this multi-GPU card.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.2.0-12-generic x86_64
NonfreeKernelMo
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: VT1708S Analog [VT1708S Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
Card0.Amixer.info:
Card hw:0 'SB'/'HDA ATI SB at 0xf3ff4000 irq 16'
Mixer name : 'VIA VT1708S'
Components : 'HDA:11060397,
Controls : 46
Simple ctrls : 22
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xfbbfc000 irq 16'
Mixer name : 'Nvidia GPU 12 HDMI/DP'
Components : 'HDA:10de0012,
Controls : 24
Simple ctrls : 4
CasperVersion: 1.301
Date: Tue Jan 31 05:26:59 2012
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120130)
MachineType: System manufacturer System Product Name
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: noprompt cdrom-detect/
RelatedPackageV
linux-
linux-
linux-firmware 1.68
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/17/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2102
dmi.board.
dmi.board.name: M4A79XTD EVO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0X
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: System Product Name
dmi.product.
dmi.sys.vendor: System manufacturer
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
Changed in linux (Ubuntu): | |
importance: | Undecided → High |
Thanks for your bug report. I'll send this over to the kernel folks.