Serial Port Bug?

[Karl Larsen]

Tod Merley wrote:
> On Nov 28, 2007 1:02 PM, Karl Larsen <k5di at zianet.com> wrote:
>   
>> Lamar Owen wrote:
>>     
>>> On Wednesday 28 November 2007, Karl Larsen wrote:
>>>
>>>       
>>>> Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
>>>>
>>>> Nothing about being set up in dmesg. It appears the kernel correctly
>>>> sees the driver. But for some reason it is not turned on.
>>>>
>>>>         
>>> If the kernel's serial driver sees a serial port enabled it will print three
>>> lines (not just one) like this:
>>> Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
>>> serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
>>> 00:07: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
>>>
>>> On my F8 laptop, which has no serial ports, I still get:
>>> Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
>>>
>>> but no actual ports are found.  Just because the kernel loads the serial
>>> driver doesn't mean it saw a serial port.
>>>
>>> So I ask again: is your serial port enabled or disabled in the BIOS?  All
>>> modern BIOS's have the capability to disable the serial ports in hardware to
>>> where the kernel will not see the ports.
>>>
>>> Checking voltages won't help you if the chip interface has been disabled from
>>> the BIOS setup program.
>>>
>>>       
>>     What is the serial port called in the BIOS? I have looked and never
>> found anything looking like serial port. I will be sure able to do that
>> IF I know what it is called.
>>
>>
>>
>> --
>>
>>         Karl F. Larsen, AKA K5DI
>>         Linux User
>>         #450462   http://counter.li.org.
>>
>> --
>>
>> fedora-list mailing list
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>>
>>     
>
> Hi again Karl Larsen!
>
> It could be called COM1 (or COM2).
>
> With a CMOS set up program you relax, poke a button and check all the
> options.  I do not mean select and try I mean simply see what they
> are.
>
> Even though your MB is new you could have a bad battery.  Try
> selecting the setup defaults while in the CMOS set up program and then
> "save and exit".
>
> Good Hunting!
>
> Tod
>
>   
 Hi Tod it was called serial port #1. Could not have been more clear. 
But it was hidden under other stuff :-)


-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.