Just talked to a friend who seems to have had the same issue. He thinks its
related to X11 and mentioned writing the xorg.conf from scratch fixed it for
him. Anyone tried this yet? I haven't surprisingly.

On Sat, Jul 4, 2009 at 1:03 PM, /dev/null <email address hidden> wrote:

> For what i have seen so far it might be an IRQ or IRQ sharing problem.
> Does anybody encounter this problem when using an external graphics card?
> It seems that this bug occurs randomly (in my case it seems to be connected
> with a video player. It does not matter whether driver i use (nvidia or nv
> or vesa) sometimes when this bug occurs and i do not shut down, but RESTART,
> my onboard soundcard is malfunctioning too (no sound at all).
> Just a wild guess: When there is the "right" combination of Interrupts the
> system just drops one of them or signals a complete wrong state.
> As soon as i have a little spare money i buy a PCIe card to test it.
>
> --
> usb ports randomly shut off Jaunty beta
> https://bugs.launchpad.net/bugs/350065
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in Ubuntu: New
>
> Bug description:
> On Jaunty beta (and previous alphas) I notice that my mouse stops
> responding after a seemingly random amount of time.  All the usb ports it
> turns out shut off--I've tried plugging various devices in all ports after
> the mouse stops responding and they are all without power. (edit:) However,
>  all the devices still work except for the mouse until you replug them
> in--then they have no power.
>
> Intrepid works perfectly on this machine with this bug never occuring
> before except in the Jaunty alphas and beta.
>
> Also, all my usb ports (according to my mobo manual) should be USB 2.0
> compliant.  For some reason, Ubuntu is not detecting all of the hubs as 2.0.
>  My motherboard is an Asus M3N78-Pro.
>
> I'm using the latest nVidia driver from Jaunty--180.44
>
> NOTE: the following attachments/terminal outputs are before the issue
> occurs (since my mouse doesn't work when the bug happens).
> (EDIT): I have attached my lsusb and dmesg out put also AFTER the bug
> occurs.
> --------------------------------------
> uname: 2.6.28-11-generic #38-Ubuntu SMP Fri Mar 27 10:01:17 UTC 2009 x86_64
> GNU/Linux
> --------------------------------------
> Jaunty beta
> --------------------------------------
> lscpi:
>
> 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 MCP78S [GeForce 8200] High
> Definition Audio (rev a1)
> 00:08.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Bridge
> (rev a1)
> 00:09.0 SATA controller: nVidia Corporation MCP78S [GeForce 8200] AHCI
> Controller (rev a2)
> 00:0a.0 Ethernet controller: nVidia Corporation MCP78S [GeForce 8200]
> Ethernet (rev a2)
> 00:0b.0 PCI bridge: nVidia Corporation MCP78S [GeForce 8200] PCI Express
> Bridge (rev a1)
> 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 [Opteron,
> Athlon64, Sempron] HyperTransport Configuration
> 00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
> Athlon64, Sempron] Address Map
> 00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
> Athlon64, Sempron] DRAM Controller
> 00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
> Athlon64, Sempron] Miscellaneous Control
> 00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron,
> Athlon64, Sempron] Link Control
> 02:00.0 VGA compatible controller: nVidia Corporation GeForce 8300 (rev a2)
> ---------------------------------------------
> lsusb:
>
> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 004 Device 002: ID 045e:00dd Microsoft Corp.
> Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 003 Device 002: ID 045e:00d1 Microsoft Corp. Optical Mouse with Tilt
> Wheel
> Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> --------------------------------------------
>



-- 
Chris Oliver
http://excid3.com