As per Ivan's comment on IRC: ivanhu> PHLin, if you have new bios, you can update and test it. but I believe it won't help. you can just disable uart(com) on bios setup. the failure will disappear.
As com port is out of scope of our coverage, I will mark this bug as Won't Fix ** Changed in: linux-lts-raring (Ubuntu) Status: Incomplete => Won't Fix -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-lts-raring in Ubuntu. https://bugs.launchpad.net/bugs/1232975 Title: [Dell Optiplex 9020] High kernel failures in suspend / hibernate log. Status in linux-lts-raring package in Ubuntu: Won't Fix Bug description: CID: 201302-12678 Dell Optiplex 9020 There many HIGH kernel failure messages in the suspend / hibernate log: suspend log: High failures: 12 s3: HIGH Kernel message: [322463.535600] ACPI Error: Field [PMS1] access width (1 bytes) too large for region [SWCR] (length 0) (20121018/exfldio-195) s3: HIGH Kernel message: [322463.535601] ACPI Error: Field [PMS1] Base+Offset+Width 2+0+1 is beyond end of region [SWCR] (length 0) (20121018/exfldio-209) s3: HIGH Kernel message: [322463.535605] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.SIOS] (Node ffff880427c4e8c0), AE_AML_REGION_LIMIT (20121018/psparse-537) s3: HIGH Kernel message: [322463.535607] ACPI Error: Method parse/execution failed [\PTS_] (Node ffff880427c78438), AE_AML_REGION_LIMIT (20121018/psparse-537) s3: HIGH Kernel message: [322463.535608] ACPI Error: Method parse/execution failed [\_PTS] (Node ffff880427c74960), AE_AML_REGION_LIMIT (20121018/psparse-537) s3: HIGH Kernel message: [322464.162618] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.SIOW] (Node ffff880427c4e8e8), AE_AML_REGION_LIMIT (20121018/psparse-537) s3: HIGH Kernel message: [322464.162619] ACPI Error: Method parse/execution failed [\WAK_] (Node ffff880427c78460), AE_AML_REGION_LIMIT (20121018/psparse-537) s3: HIGH Kernel message: [322464.162621] ACPI Error: Method parse/execution failed [\_WAK] (Node ffff880427c74988), AE_AML_REGION_LIMIT (20121018/psparse-537) s3: HIGH Kernel message: [322464.162624] ACPI Exception: AE_AML_REGION_LIMIT, While executing method \_WAK (20121018/hwesleep-82) s3: HIGH Kernel message: [322464.319512] ACPI Error: Field [DRQL] at 144 exceeds Buffer [NULL] size 128 (bits) (20121018/dsopcode-236) s3: HIGH Kernel message: [322464.319514] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.SIO1.DSRS] (Node ffff880427c4e7a8), AE_AML_BUFFER_LIMIT (20121018/psparse-537) s3: HIGH Kernel message: [322464.319516] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.UAR1._SRS] (Node ffff880427c4eeb0), AE_AML_BUFFER_LIMIT (20121018/psparse-537) hibernate log: High failures: 10 s4: HIGH Kernel message: [322397.358723] ACPI Error: Field [PMS1] access width (1 bytes) too large for region [SWCR] (length 0) (20121018/exfldio-195) s4: HIGH Kernel message: [322397.358724] ACPI Error: Field [PMS1] Base+Offset+Width 2+0+1 is beyond end of region [SWCR] (length 0) (20121018/exfldio-209) s4: HIGH Kernel message: [322397.358727] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.SIOW] (Node ffff880427c4e8e8), AE_AML_REGION_LIMIT (20121018/psparse-537) s4: HIGH Kernel message: [322397.358729] ACPI Error: Method parse/execution failed [\WAK_] (Node ffff880427c78460), AE_AML_REGION_LIMIT (20121018/psparse-537) s4: HIGH Kernel message: [322397.358731] ACPI Error: Method parse/execution failed [\_WAK] (Node ffff880427c74988), AE_AML_REGION_LIMIT (20121018/psparse-537) s4: HIGH Kernel message: [322397.358734] ACPI Exception: AE_AML_REGION_LIMIT, While executing method \_WAK (20121018/hwesleep-82) s4: HIGH Kernel message: [322397.481202] ACPI Error: Field [DRQL] at 144 exceeds Buffer [NULL] size 128 (bits) (20121018/dsopcode-236) s4: HIGH Kernel message: [322397.481205] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.SIO1.DSRS] (Node ffff880427c4e7a8), AE_AML_BUFFER_LIMIT (20121018/psparse-537) s4: HIGH Kernel message: [322397.481208] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.UAR1._SRS] (Node ffff880427c4eeb0), AE_AML_BUFFER_LIMIT (20121018/psparse-537) s4: Failed to restore hibernate image. Please find attachments for log files. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.8.0-29-generic 3.8.0-29.42~precise1 [modified: boot/vmlinuz-3.8.0-29-generic] ProcVersionSignature: Ubuntu 3.8.0-29.42~precise1-generic 3.8.13.5 Uname: Linux 3.8.0-29-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-29-generic. AplayDevices: **** List of PLAYBACK Hardware Devices **** card 1: PCH [HDA Intel PCH], device 0: ALC280 Analog [ALC280 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 ApportVersion: 2.0.1-0ubuntu17.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ubuntu 1662 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'MID'/'HDA Intel MID at 0xf0434000 irq 47' Mixer name : 'Intel Haswell HDMI' Components : 'HDA:80862807,80860101,00100000' Controls : 0 Simple ctrls : 0 Card0.Amixer.values: Card1.Amixer.info: Card hw:1 'PCH'/'HDA Intel PCH at 0xf0430000 irq 48' Mixer name : 'Realtek ALC280' Components : 'HDA:10ec0280,102805a4,00100003' Controls : 28 Simple ctrls : 13 Date: Sun Sep 29 23:26:22 2013 HibernationDevice: RESUME=UUID=68a4cba3-50c5-4cab-9cc6-4e7c165bee53 InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Dell Inc. OptiPlex 9020 MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic root=UUID=6c87e8c8-44cf-4027-bde0-bf31492441d1 ro quiet splash initcall_debug vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.8.0-29-generic N/A linux-backports-modules-3.8.0-29-generic N/A linux-firmware 1.79.6 RfKill: SourcePackage: linux-lts-raring UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/09/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: X44 dmi.board.vendor: Dell Inc. dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrX44:bd03/09/2013:svnDellInc.:pnOptiPlex9020:pvr01:rvnDellInc.:rn:rvr:cvnDellInc.:ct6:cvr: dmi.product.name: OptiPlex 9020 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. 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