Normal PS/2 keyboard doesn't work

[lassel]

Hi,

I have tried installing Ubuntu 6.06

When I boot into the CD i get the boot menu. From there my keyboard works fine. I can select to continue loading the live cd.

After the live cd loads only my mouse works! My old standard PS/2 keyboard doesn't respond.

Stubbern as I am I found the character map from the menues and used the mouse to click-type the info I needed to install and I managed to work through the installer that way.

Then I booted and once again the keyboard worked fine in GRUB but once it got into my new ubuntu login screen it stopped working!!!

I have had no problems at all with my setup in neither Ubuntu 5.04, 5.10, all dapper betas nor Windows XP.

My setup is an athlon xp 2400 with 1.5gb ram, 160gb hdd, nvidia 6600gt gfx, a standard fujitsu siemens keyboard, a logitech mouse and an external usb dvd drive.

Please help!
There must be some magic boot option or something I can use?

[Blender]

I am having exactly the same problem. My keyboard works fine with SUSE, Windows, and GRUB, yet it does not work in Ubuntu.

[Izzie]

I m using a logitech USB ultra flat keyboard and a logitech mx1000 (connected via PS2) and I'm experiencing a same same problem. chipset is nforce4.

the keyboard and mouse are working fine during install, but now that I've installed rebooted, and added some apps including nvidia-glx. And from that point when I try to boot to ubuntu keyboard is simply not working at all, sometimes I can't even enter grub menu, sometimes I can enter grub but then I'm stuck at ubuntu login screen with no kb and no mouse.

I switched to my older logitech kb which is PS2 to no success. I even tried with both kb connected.

After a few tries (sometimes 10-20) for no apparent reason, it works.

-edit-
I just checked the boot msg and noticed this line :
ohci_hcd USB HC takeover failed! (BIOS/SMM bug)
I never heard about this bug before, so I guess, it's digging for info time

-edit2-
read here http://lkml.org/lkml/2005/9/27/110 that usb legacy option in BIOS could be the problem.
usb kb support and usb mouse support are the closest option to usb legacy in my BIOS.
both were enabled, I disabled both (my mouse being connected in PS2 there's no need for it) and now mouse is working 100% and the keyboard at first didn't worked, I rebooted a couple times and now it's working.
so you might want to check your BIOS for usb legacy option, it may solve your problem.
USB kb and mouse support is enabled in BIOS (also tried to disable it).

[lassel]

I found the same fix as the previous poster.

I enabled "USB legacy support" in my BIOS and had no problems after doing that.

[Blender]

Well, I managed to fix it too. I turned off the option for USB mouse in BIOS (that for USB keyboard was off). After that my PS/2 keyboard works fine. Funny thing

[lassel]

I read at launchpad that they have worked to fix some problems with usb keyboards that didn't work out-of-the-box.

I guess they must have broken PS/2 keyboards in the process.

I'd say that it clearly is a kernel configuration bug.

[Ymer]

I had almost the same problem during installation from Live CD, I was using a normal PS2 keyboard with a USB mouse. When all connected in this way, I had mouse working but no keyboard after Live CD boot up (I could use the keyboard in boot menu, but not after that anymore). I changed my mouse to PS2 (using a convertor) and everything worked fine. I installed the Dapper succesfully, and then tried again with the original setting (mouse back to USB). But this time it detected it correctly and everything was fine. Both are working happily. So for my case I think the problem was somewhere in Live CD that it wasn't able to detect and use a USB mouse and PS2 keyboard at the same time.

Edit: I somehow figured out what is the problem: during booting up (after selection of booting type), when you keep doing something with keyboard (like turning on and off Num-Lock key ), then it recognizes the keyboard. But if you leave it alone, it almost forgets that there is a keyboard.

[cmire]

I've got a Logitech MX-700 wireless mouse & keyboard, and I've been using it for a couple of months now on Kubuntu 6.06 without any problems -- then all of a sudden today the keyboad just stopped responding after the login. I've rebooted several times, and the mouse continues to work fine, but the keyboard just will not respond.

The mouse is ps/2, and the keyboard is USB but plugged into ps/2 using an adapter. I tested the keyboard on my laptop using the USB port, and it works fine (the laptop is also running Kubuntu 6.06).

I tried just plugging the keyboard into the usb port on the workstation, but that made no difference. I was able to use the keyboard to login, but then could not use it once KDE was up.

I checked the BIOS for the tip mentioned in this thread, but I don't have that particular setting.

Is there a system or hardware config file that could have gotten corrupted or something to cause the keyboard to drop off like that after login?

[Slade Winstone]

Hi, I'm running Edgy, 2.6.17-11-generic, and found a strange, kinda, partial work-around, for this problem:
http://ubuntuforums.org/showthread.php?p=2143128

[photomoto]

I just ran into this same problem. Keyboard works fine in grub, and while booting up the BIOS etc, but as soon as X comes up, the keyboard does not respond.

My problem happened when I upgraded from Edgy 6.10 to Feisty 7.04.
In 6.1 my standard ps/2 keyboard worked fine. But after I upgraded to Feisty, my mouse worked, but my ps/2 keyboard would not respond. I thought it was a problem in /etc/xorg/X11/xorg.conf but that **WAS NOT** the case.

It was a BIOS setting. It had something to do with USB Keyboard legacy driver support settung in the bios. Actually my old p4 2ghz shuttle box has something called "Assign USB IRQ" once I disabled the IRQ, my ps/2 keyboard works like a champ.

So I think the solution is to disable USB legacy support, USB IRQ settings, or direct USB keyboard support, or whatever your flavor of BIOS calls this crap.

I can't take all the credit here. I actually found the answer via google via this link
http://www.linuxquestions.org/questi...d.php?t=304148

Anyway I hope this helps someone out... Especially on an Upgrade from 6.10 Edgy to Feisty 7.04.