Suspend 2 Ram Is not working.

VTO · 03-08-2008, 06:35 PM

Hi all,
I'm new to this forum, i have a big issue that nobody could solve and I hope that somebody in this forum will help me.

Suspend 2 Ram can't bring my laptop out from the S3 (Suspend To Ram) mode,
if i do an

Code:

echo "mem" > /sys/power/state

Or simply if i use KPowersave and i do a "Suspend To Ram" i can see my laptop going in S3 mode, and the power led starts blinking.

BUT when i push a key (To wake the laptop) the led stops blinking and stays active, the cpu fan starts, but the monitor stays off.

Using this guide i tracked the problem to the wireless card configured using iwl3945 and managed by NetworkManager...

if i unload the module iwl3945 and try again, Resume didn't work, and this is what i found in dmesg:

Code:

hash matches device 0000:00:1c.1:pcie02

that according to lshw is the PCI Express port 2, that is linked to...

Code:

ivito ~ # lspci -v 
 [...]        *-pci:2
             description: PCI bridge
             product: 82801G (ICH7 Family) PCI Express Port 2
             vendor: Intel Corporation
             physical id: 1c.1
             bus info: pci@0000:00:1c.1
             version: 02
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport-driver
           *-network
                description: Wireless interface
                product: PRO/Wireless 3945ABG Network Connection
                vendor: Intel Corporation
                physical id: 0
                bus info: pci@0000:03:00.0
                logical name: wmaster0
                version: 02
                serial: 00:18:de:c0:2b:2d
                width: 32 bits
                clock: 33MHz
                capabilities: pm msi pciexpress bus_master cap_list logical ethernet physical wireless
                configuration: broadcast=yes driver=iwl3945 ip=192.168.1.119 latency=0 module=iwl3945 multicast=yes wireless=IEEE 802.11g

The wireless interface! D'OH!!! what can i do?

This is the output of lspci -vv, related to the PCIe port 2:

Code:

00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02) (prog-if 00 [Normal decode])
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 32 bytes
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
        Memory behind bridge: fe100000-fe1fffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
        BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: [40] Express (v1) Root Port (Slot+), MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
                        ExtTag- RBE- FLReset-
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 128 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
                LnkCap: Port #2, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <256ns, L1 <4us
                        ClockPM- Suprise- LLActRep+ BwNot-
                LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt- ABWMgmt-
                SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surpise+
                        Slot #  3, PowerLimit 10.000000; Interlock- NoCompl-
                SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet+ CmdCplt- HPIrq- LinkChg-
                        Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
                SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
                        Changed: MRL- PresDet- LinkState+
                RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
                RootCap: CRSVisible-
                RootSta: PME ReqID 0000, PMEStatus- PMEPending-
        Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
                Address: 00000000  Data: 0000
        Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Unknown device 1317
        Capabilities: [a0] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

Thank you for any help!

Luca