[syslinux] no kbd via serial

[Greg Forte]

Thanks.  Apparently I just needed to turn on CTS/RTS (0x013); works 
great now - physical or SOL, doesn't even matter if redirection is 
turned off or on.

-g

H. Peter Anvin wrote:
> On 05/10/2011 10:55 AM, Greg Forte wrote:
>> I had an isolinux config that was working with Kontron CG2100s for
>> serial console with console redirection enabled in the BIOS (and
>> attaching via SOL through an Intel RMM3 module) - for some reason I had
>> to set serial port 1 instead of 0 in the config (even though the
>> physical port is 0, and the RMM is supposed to just be redirecting the
>> physical port), but it worked.
>>
>> A tester on a different box (same model and configuration) that didn't
>> have console redirection enabled complained that they couldn't see the
>> boot menu; I tried changing the serial port back to 0 in the isolinux
>> config, and now the menu is visible, but it doesn't respond to keyboard
>> input (again, over SOL; I haven't tried physical serial). This turns out
>> to be true (menu visible, no response to kbd) whether serial redirection
>> is enabled or not.
>>
>> Has anyone encountered anything similar, and/or have any tips for what
>> else to try?
>>
> 
> First of all, please try physical serial in case it is a problem with 
> your SOL module.
> 
> There are a few things you can try: you can enable serial port interrupt 
> handling, you can disable HLT, and you can set "console 0" to speak only 
> to the serial port.
> 
>     -hpa
> 
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