Re: USB keyboard backlight powering down.
From: Gerry Reno
Date: Wed Oct 17 2012 - 10:49:42 EST
On 10/17/2012 09:31 AM, Josh Boyer wrote:
> On Wed, Oct 17, 2012 at 09:09:56AM -0400, Gerry Reno wrote:
>>>> This was the udev bug I was referring to, which I think is causing the
>>>> keyboard to have auto-suspend enabled:
>>>> udev shouldn't be enabling auto-suspend of USB hids by default, since
>>>> many of them don't send a wakeup to come out of suspend when they
>>>> should. For example, most USB mice only send a wakeup even when they
>>>> are clicked, not when they are moved. That causes the user to sit
>>>> there, frustrated, as they move their mouse and wonder why their screen
>>>> doesn't unblank. Other keyboards also lose keystrokes, which means if
>>>> you pause to compose your thoughts, the first couple letters you type
>>>> gets dropped.
>>> I know we fixed that bug for F17, F18, and rawhide. I did it myself.
>>> I don't think this is udev related, but we'll double check the version.
>>> Gerry, are you using udev-182-3.fc17 or newer on your F17 install?
>> Installed Packages
>> udev.x86_64 182-1.fc17
>> There is an update available to 182-3 but I haven't installed it. Didn't know what it might impact.
> Well, it would certainly be good to update to it and see if this bug is
> fixed for you. You will probably need to rebuild your initramfs with
> the updated udev.
I updated udev to 182-3 then rebooted and my illuminated keyboard is now functioning properly. Didn't need to rebuild
initramfs. Everything appears to be working fine.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/