Hello Alan and all others,
I have observed similar lock during suspend to RAM on ASUS K52F
Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
Manufacturer: ASUSTeK Computer Inc.
Product Name: K52F
BIOS Information
Vendor: American Megatrends Inc.
Version: K52F.218
Release Date: 07/12/2011
00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller [8086:0044] (rev 18)
00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18)
00:16.0 Communication controller [0780]: Intel Corporation 5 Series/3400 Series Chipset HECI Controller [8086:3b64] (rev 06)
...
00:1a.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b3c] (rev 06)
00:1d.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b34] (rev 06)
When I unbind EHCI controllers
# Unbind ehci_hcd for first device 0000:00:1a.0:
echo -n "0000:00:1a.0" >/sys/bus/pci/drivers/ehci_hcd/unbind
# Unbind ehci_hcd for second device 0000:00:1d.0:
echo -n "0000:00:1d.0" >/sys/bus/pci/drivers/ehci_hcd/unbind
then laptop goes to suspend after
echo mem >/sys/power/state
and when power button is pressed it restores to functional state.
It works quite stable repeatedly.
This is similar to the problem solved by your patch.
I have tried 3.4.4 with kernel and added quirk
---
drivers/pci/quirks.c | 2 ++
1 file changed, 2 insertions(+)
Index: linux-3.4/drivers/pci/quirks.c
===================================================================
--- linux-3.4.orig/drivers/pci/quirks.c 2012-06-23 16:37:14.582568585 +0200
+++ linux-3.4/drivers/pci/quirks.c 2012-06-23 16:38:38.378571372 +0200
@@ -2942,6 +2942,8 @@
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1c26, asus_ehci_no_d3);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1c2d, asus_ehci_no_d3);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x3b3c, asus_ehci_no_d3);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x3b34, asus_ehci_no_d3);
static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
struct pci_fixup *end)
This quirk allows laptop suspend and resume correctly when nothing
is connected to the USB or even when mounted FLASH disk is connected.
The USB drive works correctly after resume.
DVB tuner is connected
Bus 002 Device 003: ID 0b48:300d TechnoTrend AG TT-connect CT-3650 CI
then suspend proceeds correctly but resume locks hard again.
This seems to be problem in dvb_usb_ttusb2 driver.
But anyway I think, that adding 0x3b3c and 0x3b34 to the quirk list
could help more people.
Best wishes
Pavel Pisa
e-mail: pisa@xxxxxxxxxxxxxxxx
www: http://cmp.felk.cvut.cz/~pisa
university: http://dce.fel.cvut.cz/
company: http://www.pikron.com/
