Hey guys, *this* is the correct bug report for the bug in system running the radeon driver that have AMD APUs: https://bugs.freedesktop.org/show_bug.cgi?id=42960 and there is a workaround here: https://bugs.freedesktop.org/show_bug.cgi?id=42960#c15 and here: https://bugs.freedesktop.org/show_bug.cgi?id=42960#c34
** Bug watch added: freedesktop.org Bugzilla #42960 https://bugs.freedesktop.org/show_bug.cgi?id=42960 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1093644 Title: [Samsung NP535U3C-A03DE] Blank screen on resume from suspend Status in “linux” package in Ubuntu: Incomplete Bug description: when resuming from suspend, the screen remains blank, while the system ist still operational (logging in using ssh works). * restarting X doesn't help ("sudo restart lightdm" through ssh) * disabling KMS (nomodeset) doesn't help, still blank screen after pm-suspend * updating to xorg-edgers kernel 3.7.0-7 doesn't help * mainline kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/current/ (3.8.0.999) didn't work either * playing around with acpi_os_name had no effect I tried following the debugging instructions from https://wiki.ubuntu.com/DebuggingKernelSuspend, but I have no /sys/power/pm_trace (even on mainline kernel) The system is a brand new Samsung 535U3C-A03 with an AMD A4-4355M (integrated Radeon HD 7400G). ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-21-generic 3.5.0-21.32 ProcVersionSignature: Ubuntu 3.5.0-21.32-generic 3.5.7.1 Uname: Linux 3.5.0-21-generic x86_64 ApportVersion: 2.6.1-0ubuntu9 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: galina 2104 F.... pulseaudio /dev/snd/controlC0: galina 2104 F.... pulseaudio CRDA: country DE: (2400 - 2483 @ 40), (N/A, 20) (5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR (5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS (5470 - 5725 @ 40), (N/A, 26), DFS Date: Tue Dec 25 16:44:14 2012 InstallationDate: Installed on 2012-12-24 (0 days ago) InstallationMedia: Ubuntu GNOME Remix 12.10 "Quantal Quetzal" - Release amd64(20121023) MachineType: SAMSUNG ELECTRONICS CO., LTD. 535U3C MarkForUpload: True ProcEnviron: LANGUAGE=de_DE:en PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-21-generic.efi.signed root=UUID=3d942843-dad1-48c0-b9d8-51ccff317810 ro quiet splash "acpi_os_name=Microsoft Windows NT" vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.5.0-21-generic N/A linux-backports-modules-3.5.0-21-generic N/A linux-firmware 1.98 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/24/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P06RAS.W70.121224.LEO dmi.board.asset.tag: No Asset Tag dmi.board.name: NP535U3C-A03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP06RAS.W70.121224.LEO:bd12/24/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn535U3C:pvrP06RAS:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP535U3C-A03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 535U3C dmi.product.version: P06RAS dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1093644/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
