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Errtu
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Joined: 12 Nov 2002
Posts: 155
Location: Brazil
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 Posted: Sun Jul 22, 2007 12:36 pm Post subject: box hangs on KVM switch [solved] |
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Hi,
I've been having some problems lately with a Compaq proliant ML370 in combination with a Raritan KVM. The box hangs as soon as i hit ScrollLock twice (to switch to another server). I thought it had to do solely with the ScrollLock function, so remapping that key should've solved my problem. Except that it didn't. Hitting NumLock twice (to switch back to the last accessed server) also hangs the box.
I've played with ACPI, APM and the like, in an attempt to stop this bad behavior. All no success. I assume that the box hangs in the moment that it loses connection with the mouse and keyboard. That would explain why it hangs on both NumLock and ScrollLock. I tried loading ACPI module button.ko first but that doesn't seem to make any difference either.
Right now i'm kind of out of options, so any suggestion would be nice.
Kind regards,
errtu
Last edited by Errtu on Mon Jul 23, 2007 9:03 am; edited 1 time in total |
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sedorox
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Joined: 13 Feb 2004
Posts: 207
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| Posted: Sun Jul 22, 2007 9:23 pm Post subject: Re: box hangs on KVM switch |
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| Errtu wrote: | Hi,
I've been having some problems lately with a Compaq proliant ML370 in combination with a Raritan KVM. The box hangs as soon as i hit ScrollLock twice (to switch to another server). I thought it had to do solely with the ScrollLock function, so remapping that key should've solved my problem. Except that it didn't. Hitting NumLock twice (to switch back to the last accessed server) also hangs the box.
I've played with ACPI, APM and the like, in an attempt to stop this bad behavior. All no success. I assume that the box hangs in the moment that it loses connection with the mouse and keyboard. That would explain why it hangs on both NumLock and ScrollLock. I tried loading ACPI module button.ko first but that doesn't seem to make any difference either.
Right now i'm kind of out of options, so any suggestion would be nice.
Kind regards,
errtu |
When the box 'freezes', have you tried plugging the keyboard and/or mouse directly into the computer to see if its not taking input? Also, try setting up SSH, and get into the machine remotely when it freezes and see if there is anything in logs (dmesg, /var/log/messages, etc), if you can still get in it.
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Monkeh
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Joined: 06 Aug 2005
Posts: 1656
Location: England
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| Posted: Sun Jul 22, 2007 10:25 pm Post subject: |
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Give it i8042.dumbkbd=1 as a kernel option. It's just the keyboard controller/KVM/keyboard/something having a heart attack trying to set the LEDs.
I'm guessing this is a VIA chipset? |
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Errtu
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Joined: 12 Nov 2002
Posts: 155
Location: Brazil
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| Posted: Mon Jul 23, 2007 8:03 am Post subject: |
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@sedorox:
The box completely hangs. At first i thought the same, to see what's going on. But i can't even reach it anymore through SSH after it hangs.
@Monkeh:
Wow. That did the trick. I don't know where you found that (please let me know, if you can) option but it no longer hangs now.  Thanks alot!
Wow (part 2). It also doesn't hang anymore upon shutdown. A problem i've been struggling with for quite some time now. Now i'm really curious to find out where you learnt about this.
[edit: i don't think it's a VIA chipset. It's the standard board that comes in a Proliant ML370 (serverworks/intel?)] |
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Monkeh
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Joined: 06 Aug 2005
Posts: 1656
Location: England
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| Posted: Mon Jul 23, 2007 8:41 am Post subject: |
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| Under Documentation/kernel-parameters.txt, in the kernel sources. I have a similar problem (just an input lock, not the whole machine) with one of my boxes (VIA chipset). |
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Errtu
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Joined: 12 Nov 2002
Posts: 155
Location: Brazil
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| Posted: Mon Jul 23, 2007 9:02 am Post subject: |
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Thanks  I admit that had i looked in there, i probably wouldn't be able to determine it was that option i needed. I'm glad somebody else does though  |
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