Re: [SLE] Laptop / wireless card problem with HD detection
The IRQ used for the hard drive and the wireless card is one and the same. You dont need that. You need separate IRQs for the HD and the wireless card.You need to block that IRQ from being captured by the PCMCIA controller. look at 'dmesg' and start with the IRQs of your IDE controller. Do the same with cardmgr or the cardutils. Usually IRQ 11 is set aside for the PCMCIA controller but you are having a conflict with IRQ 7. Somehow, you have to correct the IRQ steering so your hard drive does not disappear. Adam -----Original Message----- From: "Paul W. Abrahams" <abrahams@acm.org> Subj: [SLE] Laptop / wireless card problem with HD detection Date: Sun Nov 6, 2005 7:12 pm Size: 874 bytes To: suse-linux-e@suse.com It seems that the installation CD for 10.0 doesn't work on my laptop (a Dell Inspiron 1000) if the wireless card is inserted into the slot; the hard drive can't be detected. Even the rescue system has the problem; "fdisk /hda" says that the disk is unreadable. (Windows has no similar problem.) What's more, with the system installed, shutdown, or even switching users in KDE, hangs up if the wireless card is inserted. Somehow the presence of that card seems to confuse Linux (the kernel, probably) very badly. Has anyone else seen this behavior? I can get around the problem by withdrawing the card, but that shouldn't be necessary. Paul -- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com
On Monday 07 November 2005 6:03 pm, Adam Vazquez Kb2jpd wrote:
The IRQ used for the hard drive and the wireless card is one and the same. You dont need that. You need separate IRQs for the HD and the wireless card.You need to block that IRQ from being captured by the PCMCIA controller.
look at 'dmesg' and start with the IRQs of your IDE controller. Do the same with cardmgr or the cardutils.
Usually IRQ 11 is set aside for the PCMCIA controller but you are having a conflict with IRQ 7.
Somehow, you have to correct the IRQ steering so your hard drive does not disappear.
My BIOS settings have nothing for IRQ adjustments (this is an economy laptop, $499 from Dell). Is there a way to correct the IRQ steering through Linux? And is it possible to do that even for the boot CD? Thanks -- Paul
hi,
My BIOS settings have nothing for IRQ adjustments (this is an economy laptop, $499 from Dell). Is there a way to correct the IRQ steering through Linux? And is it possible to do that even for the boot CD?
There are several ways to get the kernel to handle IRQs differently. Anyway, check PnPOS is disabled in the BIOS. cat /proc/interrupts This will show what IRQs devices are using. And check /var/log/messages after inserting the card (with "tail -30", for example, as root). The file /var/log/boot.msg will give you clues to IRQ assignments and routing that is happening durinb bootup, too. If you have kernel-source installed, you'll find some useful documentation such as /usr/src/linux/Documentation/kernel-parameters.txt. This contains various boot options for ACPI and IRQs. So does the Boot Prompt Howto: http://www.tldp.org/HOWTO/BootPrompt-HOWTO.html I can't give any specific information, just a few pointers, without knowing more about your system and looking at the logs. -- /Paul "It's not about the ending, it's about the journey." - Lex Luthor
participants (3)
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Adam Vazquez Kb2jpd -
Paul -
Paul W. Abrahams