S3 freezes on wake on NC6000 laptop

kjournald starting. Commit interval 5 seconds
sh-3.00# mount -t proc proc /proc
sh-3.00# mount -t sysfs sys /sys
sh-3.00# echo C057 > /proc/acpi/wakeup
sh-3.00# cat /proc/acpi/wakeup
Device Sleep state Status
C057 5 enabled
sh-3.00# echo mem > /sys/power/state
radeonfb (0000:01:00.0): suspending to state: 2...
PM: Entering state.
hwsleep-0307 [04] acpi_enter_sleep_state: Entering sleep state [S3]

Hi,

I am trying to get S3 (suspend to RAM) to work on an HP NC6000 laptop with no success. The system seems to enter the S3 state correctly, but when I turn back on it freezes completely.

I tried booting with no modules and no processes loaded (init=/bin/sh) and with a serial console, but I can't see anything helpful. What I see is this:

Quoted 9 lines

kjournald starting. Commit interval 5 seconds sh-3.00# mount -t proc proc /proc
sh-3.00# mount -t sysfs sys /sys
sh-3.00# echo C057 > /proc/acpi/wakeup sh-3.00# cat /proc/acpi/wakeup
Device Sleep state Status
C057 5 enabled
sh-3.00# echo mem > /sys/power/state radeonfb (0000:01:00.0): suspending to state: 2...

Quoted 2 lines

PM: Entering state.
hwsleep-0307 [04] acpi_enter_sleep_state: Entering sleep state [S3]

After that, it seems that the system goes to sleep. There is nothing on the screen, the HD stops, and the power light starts blinking.

However, when I turn the machine back on it freezes completely. The HD starts, the power light comes on, but the serial console is unresponsive, the keyboard doesn't seem to work, and it won't turn off again, even if I hold the power button for 5 seconds.

Ah, radeonfb. Please don't use radeonfb if you want to have any chance in resuming. Don't use any framebuffer on systems with radeon cards. It will freeze your machine completely. Actually, any graphics activity (framebuffer or X or svga access) will freeze it.

That's sort of incorrect, I've used radeonfb since late 2.5.X builds and I don't remember it causing any problems resuming (of course, I need acpi_sleep=s3_bios, but that's another thing). Radeonfb will resume just fine, provided the underlying hardware is in a sane state. Granted, it may cause freezes, but it's definitely not so that removing it will magically cause your video to work or that it does always hang the machine.

I am trying to get S3 (suspend to RAM) to work on an HP NC6000 laptop with no success. The system seems to enter the S3 state correctly, but when I turn back on it freezes completely.

I tried booting with no modules and no processes loaded (init=/bin/sh) and with a serial console, but I can't see anything helpful. What I see is this:

Hi!

Quoted 7 lines

I am trying to get S3 (suspend to RAM) to work on an HP NC6000 laptop with no success. The system seems to enter the S3 state correctly, but when I turn back on it freezes completely.

I tried booting with no modules and no processes loaded (init=/bin/sh) and with a serial console, but I can't see anything helpful. What I see is this:

Drop radeonfb, and drop swsusp2 patch. Apply this, and lets see if you can hear beep during wakeup.
Pavel

arch/i386/kernel/acpi/wakeup.S +17 -1

@@ -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_start = .
 	.code16
 
+	BEEP
  	movw	$0xb800, %ax
 	movw	%ax,%fs
 	movw	$0x0e00 + 'L', %fs:(0x10)

Quoted 2 lines

I tried booting with no modules and no processes loaded (init=/bin/sh) and with a serial console, but I can't see anything helpful. What I see is this:

Drop radeonfb, and drop swsusp2 patch.

Apply this, and lets see if you can hear beep during wakeup.

Apply this, and lets see if you can hear beep during wakeup.

Done: the machine wakes up. Video does not work, but pressing caps lock toggles the led and typing "find /" starts the hard disk grinding. If I pass acpi_sleep=s3_bios on the command line, even video works.

Summary:

- radeonfb on its own freezes the machine on wakeup
- swsusp2 on its own also freezes on wakeup (but even worse:
you can't even power off by holding the power button)
- With no radeonfb and no swsusp2, the machine wakes up
- If I also use acpi_sleep=s3_bios, the machine wakes up, and I get video too

Quoted 2 lines

- swsusp2 on its own also freezes on wakeup (but even worse:
you can't even power off by holding the power button)

If that's the case, something is broken in Suspend2. Can you confirm that please by removing Radeon but adding Suspend2?

Quoted 5 lines · Nigel Cunningham

Quoted 2 lines

- swsusp2 on its own also freezes on wakeup (but even worse:
you can't even power off by holding the power button)

If that's the case, something is broken in Suspend2. Can you confirm that please by removing Radeon but adding Suspend2?

Actually it's not swsusp2's fault. The working kernel has a rather stripped-down config, and the non-working kernel has a much more complicated configuration. If I add swsusp2 to the stripped-down kernel, S3 sleep still works.

Quoted 6 lines

That's sort of incorrect, I've used radeonfb since late 2.5.X builds and I don't remember it causing any problems resuming (of course, I need acpi_sleep=s3_bios, but that's another thing). Radeonfb will resume just fine, provided the underlying hardware is in a sane state. Granted, it may cause freezes, but it's definitely not so that removing it will magically cause your video to work or that it does always hang the machine.

Do you have to press a key on resume to be able to come back?

Thats one of my major problems with ole's patch to get video back with radeonfb when s3_bios does not work.

- radeonfb on its own freezes the machine on wakeup

Quoted 1 line

- radeonfb on its own freezes the machine on wakeup

Is it modular? Try building into the kernel if so.

Quoted 1 line

Apply this, and lets see if you can hear beep during wakeup.

I didn't apply it because things already seemed to be working without it (using acpi_sleep=s3_bios I get video, without it I don't but the machine wakes up all the same). Do you want me to test with the patch as well? What do I need to do?