PE 1750 "blinks" on a PE180AS KVM switch

[Pol Moal]

Howard Powell a écrit :
> On the 1750s I found that if you enable VGA mode (append vga=792 in 
> grub.conf to any line that starts with "kernel") then the blinking 
> problem goes away. As a bonus, you get a cool penguin icon in the 
> corner during bootup, 1 penguin = 1 processor.  However, newer 
> PowerEdge hardware like the 1850 and 1950 series have a different 
> graphics card inside which ignores VGA mode.  I don't have a solution 
> for those machines.
>
> It appears to be a problem with any RHEL-based OS.
I forgot to reply but there is the same problem with fedora.
and the solution for 1750 works for 1950.

thanks
>
> H
>
>
> On Jan 21, 2008, at 4:52 AM, Pol Moal wrote:
>
>> Howard Powell a écrit :
>>>
>>> Last week I was setting up a PowerEdge 1750 to become a dedicated 
>>> print server for my deparment.  The server is running Centos 5 and 
>>> is set up to run only in text mode, no X graphics.  The machine 
>>> firmware is level A12.
>>>
>>> When I set up the machine, I connected it to an older Dell 71PXP KVM 
>>> switch I had in my office.  After debugging cups and getting things 
>>> running smoothly, I moved the machine over to my rack where it was 
>>> connected to a PowerEdge 180AS KVM switch.
>>>
>>> When it was connected to the first switch, everything worked great.  
>>> When I connected it to the 180AS, I now get an annoying "blink" when 
>>> it boots every time the system starts a service and the green [OK] 
>>> comes up.  When I log in (again, text mode, X is not set up on this 
>>> machine) it blinks.  The most annoying issue is if no one uses the 
>>> machine for 5 minutes or so, the display blanks out and never 
>>> returns.  Pressing numlock or caps lock doesn't turn on any lights 
>>> once it's in this state (though in the first 5 minutes these buttons 
>>> function fine).
>>>
>>> I've checked out my grub.conf and I am not passing any vga options 
>>> to the kernel at boot - it should be as vanilla as I can get it to be.
>>>
>>> I've also replaced the cat5 cabling between the machine and the 
>>> 180AS.  The only thing I haven't replaced is the USB/VGA to Cat5 
>>> coupler behind the machine.  The 180AS works as expected with other 
>>> machines.
>>>
>>> Any ideas?  I suspect a software bug, but like I said, I can't find 
>>> anything else that might be mucking with the vga settings.
>> Hi,
>>
>> Do you resolve this problem?
>> I'm in the same situation. I use a kvm switch but my server is 
>> running rhel5.
>>
>> thanks
>>>
>>>
>>> -- 
>>>
>>> Never interrupt your enemy when he is making a mistake
>>>     Napoleon Bonaparte
>>>
>>> Howard Powell
>>> Computer Support Technician
>>> Astronomy Department, UVa
>>>
>>>
>>>
>>>
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>>
>>
>> -- 
>> Pol Moal - Comité Réseau des Universités |--> http://www.cru.fr
>>
>
> -- 
>
> Never interrupt your enemy when he is making a mistake
>     Napoleon Bonaparte
>
> Howard Powell
> Computer Support Technician
> Astronomy Department, UVa
>
>
>


-- 
Pol Moal - Comité Réseau des Universités |--> http://www.cru.fr
tel: 02 23 23 71 71