On Thu 2006-08-03 17:09:37, Matej Cepl wrote:
> Pavel Machek wrote:
> > Yes. Try again on minimal system, see if it is just video that is
> > broken or if machine is hung up, and report.
>
> Apparently everything is broken. I tried "brutal mode" (see
> attached /boot/grub/menu.lst a /boot/config-`uname -r`; BTW, using vanilla
> 2.6.17.7 kernel with suspend2 patch), but neither
>
> /usr/sbin/s2ram -f
> nor
> /usr/sbin/s2ram -f -a 3 # suggested by Suse s2ram page
> /usr/sbin/s2ram -f -s # suggested by Brian Keck
> /usr/sbin/s2ram -f -s -p # IMHO, the most conservative option
>
> didn't make my computer work. Neither display was on, nor there was any
> reaction to CapsLock, NumLock, or Ctrl+Alt+Del. However, after lifting a
> lid (the only method how to resume, I came up with) hard drive begun to
> work and was active for something like 10s. Then I tried all those key
> combinations, but without any results.
>
> What's the problem? Which additional information I should provide?
Probably kernel hardlocks during resume. Go to *vanilla* 2.6.18-rc3
(no suspend2 patch, please), and try suspending it by echo 3 >
/proc/acpi/sleep (from init=/bin/bash boot, minimum config, no fb).
If it is still broken, try beeping patch:
You may want to try disabling apic, smp, etc...
Pavel
diff --git a/arch/i386/kernel/acpi/wakeup.S b/arch/i386/kernel/acpi/wakeup.S
index 9f408ee..158f9bc 100644
--- a/arch/i386/kernel/acpi/wakeup.S
+++ b/arch/i386/kernel/acpi/wakeup.S
@@ -11,7 +11,22 @@
#
# If physical address of wakeup_code is 0x12345, BIOS should call us with
# cs = 0x1234, eip = 0x05
-#
+#
+
+#define BEEP \
+ inb $97, %al; \
+ outb %al, $0x80; \
+ movb $3, %al; \
+ outb %al, $97; \
+ outb %al, $0x80; \
+ movb $-74, %al; \
+ outb %al, $67; \
+ outb %al, $0x80; \
+ movb $-119, %al; \
+ outb %al, $66; \
+ outb %al, $0x80; \
+ movb $15, %al; \
+ outb %al, $66;
ALIGN
.align 4096
@@ -20,6 +35,7 @@ wakeup_code:
wakeup_code_start = .
.code16
+ BEEP
movw $0xb800, %ax
movw %ax,%fs
movw $0x0e00 + 'L', %fs:(0x10)
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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