G-Series Gaming Keyboards

[Azelphur]

Hello folks, I have the lovely G19 boot loop issue. It happens very regularly, pretty much daily, and as current the only way to solve it is to completely unplug the keyboard (both power and usb) and then plug it back in again. Things I have tried...

Disabling EHCI Handoff

Disabling Legacy USB Support

Updating my BIOS to the latest release

Different ports, hubs and routing the cable away from other cables

Moving my phone (Also holding my phone right next to the LCD while making phone calls, sending text messages and using data. It had no effect)

Returning my overclock to stock settings

Replacing the power supply

Things I havn't tried

Dedicated USB card - I don't want to buy a card, I also don't have any free card slots. (Note that I don't use SLi)

I notice that the Logitech guy states that the problem lies external to the G19, and yet one of the suggested solutions is to move your mobile phone at least 15 inches away from the screen. These two statements clearly contradict eachother.

My system specs:

Asus Sabertooth X58

i7 960

12GB DDR3 Corsair Vengeance 1600Mhz

EVGA GTX 570

ASUS 8800GT

Corsair AX1200 PSU

2 x 1TB Seagate Barracuda 7200RPM drives

Corsair F40GB2 SSD

Logitech: G13, G19, G930, TrackMan

Ubuntu 12.04

I can try Windows if I have to, but I'd prefer to not have to go through a full repartition just to fix this issue

Also, I get this issue extremely regularly, My keyboard has never lasted more than 2 days without going boot loop, usually it lasts a matter of hours. So if a Logitech person wants to sit down with me and debug this I'm happy to help any way I can. I can provide contact details.

As you can see I'm a bit of a Logitech fanatic, I've owned a G15 and I just ordered an M570, I also funded part of the driver development for Linux. But if I can't get this issue fixed I'll probably have to switch away from Logitech. I absolutely love the hardware but it's useless to me if it doesn't work

Edit: dmesg has some potentially interesting things to say about the situation, it spams this.

[33783.236398] usb 9-2.2: usbfs: usb_submit_urb returned -12
[33783.236436] xhci_hcd 0000:02:00.0: ERROR no room on ep ring

[CharlesB]

@Azelphur - The cell phone thing is because some users have noticed this helps them. It's probably related to radio interference being picked up and transmitted across the USB.

Unfortunately, this issue seems to be very motherboard specific. I wish I could replicate it, but none of my systems cause it to happen, even my friend's x58 (asus mobo). I have a:

z68XP-UD4

i7-2600k @ 4.5GHz

G19

G13

G400

setup at home, and nill issues. I have an idea though. What other devices do you have plugged into your PC currently?

[Azelphur]

I have a lot of USB stuff :x

10 port USB hub from ebay

Playstation 2 to USB converter from ebay

HP DeskJet F4100

Logitech G19

Logitech G13

Logitech G930 (Wireless reciever)

Logitech TrackMan (this one)

Stealth Switch

Oxygen 64 Midi keyboard

USB Bluetooth dongle

PCIe I have GTX 570 and 8800GT powering 4 monitors (2 each)

Linked to the unbranded ebay stuff so you can see exactly what I have

[CharlesB]

Time to play USB musical chairs

Strip it down to the G19 and a mouse, and see how it behaves. If the situation improves, I'd start adding devices back in. The hub, PS2 adapter, and BT adapter are suspect in my mind off the bat. Heck, for the devices that require AC adapters, do you have them all plugged into the same power strip, or not?

[Azelphur]

Yay for USB musical chairs

I have two belkin power strips

The first powers misc stuff:

USB Hub power

Belkin Router

14" desk fan

HP Printer

the second powers the 4 monitors and PC.

I have tried the G19 on both power strips. I'll try musical chairs for a bit and see how I go, will probably take a while to confirm anything as it boot loops anywhere between seconds after power up to a week, although most seem to happen within a day.

[CharlesB]

I see bad voodoo potentially with the fan and the hub being on the same power strip. Stilly, but hubs can be a sesitive point and a desk fan is basically an electrical noise machine for your AC line. I kid you not, but I'd try plugging the fan into a different outlet, and let us know. I'd feel very good about myself if that alone resolves the issue

[Azelphur]

With only the following USB devices plugged in:

Logitech G19

Logitech G930

Logitech G13 (Plugged into G19)

Logitech TrackMan (Plugged into G19)

along with fresh reboot for good measure, I just had the boot loop issue again.

My fan was off when the G19 started boot looping, I was just happily playing Diablo 3 and off it went.

I have 2 power strips plugged into a double wall socket, The fan is not on the same power strip as the G19 currently.

[CharlesB]

Now this will be an extreme step, but I'm curious as I haven't had a chance to try this with an asymmetric video card setup.

Would you be willing to remove the 8800GT (which I assume you're using as a PhysX card)? Just temporarily and only to see how the system behaves.

[Azelphur]

I'm not using it as a physx card and sli is disabled. I have 4 monitors so it's literally only there to power my monitors, would suck to disable it as it'd leave half of my monitors without a home xD. I am actually planning on swapping that card out soon, however

[akaglty]

I have fixed quite a few of these G19 keyboards now. There might very well be an issue with the handoff in the BIOS but, the thing that is causing the issue most people are running into is, there are 2 ground straps that connect to the metal bar that holds the LCD screen on to the keyboard. If you open it up you will see them right next to the cord. The screw is threaded very poorly into that bar. The metal is to weak when they screw them in so it strips and the screw gets loose. This happens over time with the cord getting moved at all.

I use a tiny bit of super glue in the hole to secure the screw and bingo, works every time.

Logitech really needs to speak with their engineers.