Red Hat Bugzilla – Bug 426480
126.96.36.199-85.fc8 kernel brings out more ACPI errors info in dmesg on toshiba laptop
Last modified: 2008-02-11 17:39:32 EST
Description of problem:
188.8.131.52-85.fc8 kernel brings out more ACPI error info in dmesg than
184.108.40.206-63.fc8. Shows below:
+ACPI Error (evregion-0316): No handler for Region [ERAM] (f7d0d4d8)
+ACPI Error (exfldio-0289): Region EmbeddedControl(3) has no handler 
+ACPI Exception (dswexec-0462): AE_NOT_EXIST, While resolving operands for
[OpcodeName unavailable] 
+ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.HTEV] (Node
+ACPI Error (psparse-0537): Method parse/execution failed
[\_SB_.PCI0.LPC0.EC0_._REG] (Node f7d0cbe8), AE_NOT_EXIST
Version-Release number of selected component (if applicable):
kernel version 220.127.116.11-85.fc8
Toshiba Laptop A135-S2386
I will add both dmesgs and the acpidump file for your reference.
Created attachment 290237 [details]
demsg of 18.104.22.168-63.fc8
Created attachment 290238 [details]
dmesg of 22.214.171.124-85.fc8
Created attachment 290239 [details]
Also, the brightness buttons (Fn+F6/F7) of toshiba a135-s2386 still not work
well(/proc/acpi/video/VGA/LCD/brightness works well, but pressing Fn+F6/F7 can
only makes brightness up to the highest level, the gnome-panel brightness applet
can not get laptop brightness).
I knew there are some bug report about that issue and the new kernel
(126.96.36.199-85.fc8) do have workaround code in the acpi/ec.c, so I upgraded to the
new kernel, but now it seems that it does not help.
Possibly related: Kernel 188.8.131.52-85.fc8 royally locks up on reboot, and
prevents BIOS from starting. The only way to recover is to physically unplug
the machine for about a minute. On the same machine (Intel D865PERL motherboard
& BIOS), previous kernel 184.108.40.206-63.fc8 reboots normally. BTW, "acpi=off"
doesn't help, so the trouble with 220.127.116.11-85.fc8 may go beyond ACPI.
Again, 18.104.22.168-63.fc8 works normally but 22.214.171.124-85.fc8 doesn't.
Problems in comment #4 are a separate item and should be fixed in 126.96.36.199-132.
The EC messages should be fixed in 188.8.131.52-133
kernel-184.108.40.206-137.fc8 has been submitted as an update for Fedora 8
kernel-220.127.116.11-137.fc8 has been pushed to the Fedora 8 stable repository. If problems still persist, please make note of it in this bug report.