Hi all ,
I've recently switched from an MSI KT4 Ultra motherboard to an Abit KV7
board ,and the system worked well until today that I'm attempting to
reinstall the system .
It seems that the USB make some conflicts in IRQ , infact , if I enable
the option "Allocate IRQ to USB" in the BIOS , I'm unable to start any
Installation CD of any distribution , the booting simply hangup .
This doesn't happen if I've APIC and ACPI enabled , but if I use the
PCI-BIOS mode this happens (nearly all Linux distributions start the
system installation without APIC and ACPI ). FreeBSD and NetBSD hasn't
this problem , and both those boot without problem and with USB enabled .
If I disable the option "Allocate IRQ to USB" in the BIOS the system
boot up correctly .
Any ideas?
Thanks
Marcello
Maggio wrote:
>
> Hi all ,
>
> I've recently switched from an MSI KT4 Ultra motherboard to an Abit KV7
> board ,and the system worked well until today that I'm attempting to
> reinstall the system .
>
> It seems that the USB make some conflicts in IRQ , infact , if I enable
> the option "Allocate IRQ to USB" in the BIOS , I'm unable to start any
> Installation CD of any distribution , the booting simply hangup .
Is there a BIOS setting for 'USB Legacy Support'?
----- Original Message -----
From: "walt" <[email protected]>
To: "Maggio" <[email protected]>
Cc: <[email protected]>
Sent: Saturday, March 06, 2004 4:19 PM
Subject: Re: IRQ USB , freezes with ABIT KV7
> Maggio wrote:
> >
> > Hi all ,
> >
> > I've recently switched from an MSI KT4 Ultra motherboard to an Abit KV7
> > board ,and the system worked well until today that I'm attempting to
> > reinstall the system .
> >
> > It seems that the USB make some conflicts in IRQ , infact , if I enable
> > the option "Allocate IRQ to USB" in the BIOS , I'm unable to start any
> > Installation CD of any distribution , the booting simply hangup .
>
> Is there a BIOS setting for 'USB Legacy Support'?
I've checked in the BIOS and doesn't seem to exist (I have Award BIOS ) ,
maybe it has another name? But anyway doesn't seem to exist nothing similar
.
Please help (I've tried GENtoo, Slack and CRUX)
Marcello
----- Original Message -----
From: "Maggio" <[email protected]>
To: "walt" <[email protected]>
Cc: <[email protected]>
Sent: Saturday, March 06, 2004 6:22 PM
Subject: Re: IRQ USB , freezes with ABIT KV7
>
> ----- Original Message -----
> From: "walt" <[email protected]>
> To: "Maggio" <[email protected]>
> Cc: <[email protected]>
> Sent: Saturday, March 06, 2004 4:19 PM
> Subject: Re: IRQ USB , freezes with ABIT KV7
>
>
> > Maggio wrote:
> > >
> > > Hi all ,
> > >
> > > I've recently switched from an MSI KT4 Ultra motherboard to an Abit
KV7
> > > board ,and the system worked well until today that I'm attempting to
> > > reinstall the system .
> > >
> > > It seems that the USB make some conflicts in IRQ , infact , if I
enable
> > > the option "Allocate IRQ to USB" in the BIOS , I'm unable to start any
> > > Installation CD of any distribution , the booting simply hangup .
> >
> > Is there a BIOS setting for 'USB Legacy Support'?
>
> I've checked in the BIOS and doesn't seem to exist (I have Award BIOS ) ,
> maybe it has another name? But anyway doesn't seem to exist nothing
similar
> .
>
> Please help (I've tried GENtoo, Slack and CRUX)
>
> Marcello
>
seems that changing in the BIOS the options:
USB mouse Support Via :
and
USB Keyboard Support Via :
from [OS] to [BIOS] removed the problem . But why linux gives this problem
and FBSD no? What this option implies ? I've noticed that the IRQ of the USB
2.0 controller changes from 12 to 5 (12 was shared with the Sound Card) ,
and the other 4 UHCI devices continue to share IRQ 10 and 11 between them .
Please , make me light on this ....
Thanks
Sorry if I quote myself again , but I think to have understood why my system
hangup at installation .
The default IRQ that my motherboard sets for USB 2.0 controller and the
Sound Card is "12" if no PS/2 mouse is plugged-in (generally IRQ12 is
reserved to PS/2 mouse) , but the PS/2 Mouse port is always present , also
if no mouse is plugged-in , and the linux PS/2 mouse driver occupies the IRQ
12 when loads , so , when it's the time of the USB 2.0 controller driver the
booting hangs up.
Is not possible adding a feature in the kernel , that if the PS/2 driver
doesn't find any mouse plugged in the port just leve free the IRQ12 instead
of catching it up? (if this feature is not already implemented , but it is
doesn't work for me)
Marcello
>
> ----- Original Message -----
> From: "Maggio" <[email protected]>
> To: "walt" <[email protected]>
> Cc: <[email protected]>
> Sent: Saturday, March 06, 2004 6:22 PM
> Subject: Re: IRQ USB , freezes with ABIT KV7
>
>
> >
> > ----- Original Message -----
> > From: "walt" <[email protected]>
> > To: "Maggio" <[email protected]>
> > Cc: <[email protected]>
> > Sent: Saturday, March 06, 2004 4:19 PM
> > Subject: Re: IRQ USB , freezes with ABIT KV7
> >
> >
> > > Maggio wrote:
> > > >
> > > > Hi all ,
> > > >
> > > > I've recently switched from an MSI KT4 Ultra motherboard to an Abit
> KV7
> > > > board ,and the system worked well until today that I'm attempting to
> > > > reinstall the system .
> > > >
> > > > It seems that the USB make some conflicts in IRQ , infact , if I
> enable
> > > > the option "Allocate IRQ to USB" in the BIOS , I'm unable to start
any
> > > > Installation CD of any distribution , the booting simply hangup .
> > >
> > > Is there a BIOS setting for 'USB Legacy Support'?
> >
> > I've checked in the BIOS and doesn't seem to exist (I have Award BIOS )
,
> > maybe it has another name? But anyway doesn't seem to exist nothing
> similar
> > .
> >
> > Please help (I've tried GENtoo, Slack and CRUX)
> >
> > Marcello
> >
>
>
> seems that changing in the BIOS the options:
>
> USB mouse Support Via :
>
> and
>
> USB Keyboard Support Via :
>
> from [OS] to [BIOS] removed the problem . But why linux gives this problem
> and FBSD no? What this option implies ? I've noticed that the IRQ of the
USB
> 2.0 controller changes from 12 to 5 (12 was shared with the Sound Card) ,
> and the other 4 UHCI devices continue to share IRQ 10 and 11 between them
.
>
> Please , make me light on this ....
>
> Thanks
>
> -
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