[ipxe-devel] USB-Keyboard "roccat arvo" doesnt work properly with ipxe-menu

Oliver Rath rath at mglug.de
Tue Sep 23 15:01:24 UTC 2014

Hi MIchael,

this is an UEFI-BIos, but in pxe-legacy-mode, so Im not sure if this is
real mode. Im booting several things (win8, linux, etc.). The problem
happens in ipxe himself while choosing a menu entry. When the OS has
booted, all is fine.


On 23.09.2014 16:49, Michael Brown wrote:
> On 23/09/14 12:06, Oliver Rath wrote:
>> I have some special "Gamer" USB--keyboards (Roccat Arvo roc-12-500,
>> http://www.roccat.org/Products/Gaming-Keyboards/ROCCAT-Arvo/), which
>> work with ipxe-menu in this way:
>> - normal keypressing has no effect
>> - multiple keypressing has sometimes effect
>> - pressing the i.e. arrow-down key together with the shift key (or
>> space) works (it is important to press these keys
>>    at the same time) in most cases, if not, repeating this multiple
>> times
>> get the
>>    positioning keys "work".
>> I assume, that these keyboards are reacting much faster than
>> standard-keyboards so the event too fast for the ipxe-driver.
>> How can I debug this? Are there implicit assumptions for the keyboard
>> speed?
> iPXE just uses the standard BIOS interface for reading keypresses; we
> don't have any kind of direct keyboard driver.
> Does the keyboard work in your normal BIOS environment, or if you boot
> a real-mode OS such as MS-DOS?
> Michael

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