Bug 137441
Summary: | ACPI stops working after plugging USB touchscreen | ||
---|---|---|---|
Product: | [Fedora] Fedora | Reporter: | Keith Chew <keith.chew> |
Component: | kernel | Assignee: | Dave Jones <davej> |
Status: | CLOSED NEXTRELEASE | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 2 | CC: | intel-linux-acpi, pfrields |
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i686 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2005-04-16 05:24:46 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
Keith Chew
2004-10-28 15:01:45 UTC
I have tried booting with acpi=off, and I can now confirm what's conflicting with the ACPI: 0: 264922 XT-PIC timer 1: 54 XT-PIC i8042 2: 0 XT-PIC cascade 5: 911 XT-PIC uhci_hcd, uhci_hcd, eth0, yenta, yenta 8: 1 XT-PIC rtc 9: 37 XT-PIC ehci_hcd, uhci_hcd, VIA8233 12: 33 XT-PIC i8042 14: 6241 XT-PIC ide0 15: 95 XT-PIC ide1 Looking at IRQ 9, it's the ehci_hcd that is conflicting with acpi. How can I manually assign ehci_hcd and acpi to different IRQs? Ok I have found a workaround. I went to the BIOS and reserved IRQ 9, so that the motherboard will not assign the ehci_hcd to that IRQ. Both ACPI and ehci_hcd are now playing nicely. sure looks like the USB device is pulling on the interrupt and killing ACPI before the USB driver is fully loaded. what does the /proc/interrupts look like after the BIOS workaround? Does USB end up on its own private IRQ? Yes, the USB ends up on IRQ 5: cat /proc/interrupts CPU0 0: 177860 XT-PIC timer 1: 10 XT-PIC i8042 2: 0 XT-PIC cascade 4: 25 XT-PIC serial 5: 35 XT-PIC ehci_hcd, uhci_hcd, VIA8233 8: 1 XT-PIC rtc 9: 0 XT-PIC acpi 12: 242 XT-PIC uhci_hcd, uhci_hcd, eth0, yenta, yenta 14: 6516 XT-PIC ide0 15: 12 XT-PIC ide1 NMI: 0 ERR: 0 Fedora Core 2 has now reached end of life, and no further updates will be provided by Red Hat. The Fedora legacy project will be producing further kernel updates for security problems only. If this bug has not been fixed in the latest Fedora Core 2 update kernel, please try to reproduce it under Fedora Core 3, and reopen if necessary, changing the product version accordingly. Thank you. |