E521 bios

Matt Wette matt.wette at earthlink.net
Thu Jan 4 20:12:54 CST 2007


Matt Wete wrote:
> Robin wrote:
>> Felix Schwarz wrote:
>>> Jason_Mack at dell.com schrieb:
>>>> To the best of my knowledge, the E521 issue has not been fixed yet.
>>> Dell released a bios update on 01/01/2007 (version 1.1.4) which solved my problems (USB + 
>>> system unbootable).
>> Sadly I can only report a temporary fix after updating my BIOS. With 
>> Fedora Core 6  I now get about 2 hours before I have to move the Mouse 
>> to a PCI USB card. An improvement on 10 minutes but still a bug.
> 
> Do you have E521 or C521?  I have C521 w/ X2 processor and I have not
> had a USB problem for three days now on FC6 (>10 hours of use).  I am
> booting with "acpi=noirq" on 2.6.18-1.2869.fc6.

Also, what other devices do you have on the PCI / USB buses?
I have (1) ATI X1300, (2) PCI USB card, (3) 2407 monitor USB hookup,
(4) front card reader.  Here is

# lsusb
Bus 002 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
Bus 001 Device 003: ID 413c:2003 Dell Computer Corp.
Bus 001 Device 001: ID 0000:0000
Bus 001 Device 004: ID 0461:4d15 Primax Electronics, Ltd
Bus 003 Device 001: ID 0000:0000
Bus 003 Device 002: ID 0644:0200 TEAC Corp.
Bus 003 Device 006: ID 0424:2602 Standard Microsystems Corp.
Bus 003 Device 005: ID 0424:2502 Standard Microsystems Corp.
Bus 003 Device 007: ID 0424:2228 Standard Microsystems Corp.

# cat /proc/interrupts
            CPU0       CPU1
   0:       9273   38072947    IO-APIC-edge  timer
   2:          0          0          XT-PIC  cascade
   5:          0      11989   IO-APIC-level  eth0
   7:      16770         44   IO-APIC-level  ohci_hcd:usb1
   8:          0          3    IO-APIC-edge  rtc
   9:          0          0    IO-APIC-edge  acpi
  10:          1        191   IO-APIC-level  ohci_hcd:usb2, libata, HDA 
Intel
  11:    2663983       6933   IO-APIC-level  ehci_hcd:usb4, libata, fglrx
  15:          0    3969256   IO-APIC-level  ehci_hcd:usb3
NMI:          0          0
LOC:   38082241   38082257
ERR:          1
MIS:          2


Note: If I don't boot with "acpi=noirq", my timer (IRQ0) gets
routed at XT-PIC, which seems to mean the interrupt does not
come through the IO-APIC.



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