Curiously I can actually resume from a manually typed pm-suspend as root to the Ctrl-Alt-F2 text mode console without immediate crash.
However, even chvt 7;xrandr --auto will freeze the machine (including keyboard LEDs) afterwards, i.e. I cannot get back to anything running on the graphical desktop. dmesg just before shows the attached entries, interestingly hinting at a recurrent problem of reading the display descriptor: HDMI: invalid ELD buf size -1 Now I wonder how I can force-feed an overriding EDID file to the new driver(s) - as used to be possible through the old /etc/X11/xorg.conf when there still was one (http://wiki.xbmc.org/index.php?title=Creating_and_using_edid.bin_via_xorg.conf#Configure_xorg_to_read_from_EDID) , and whether that might work around the issue. ** Attachment added: "dmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1341270/+attachment/4151787/+files/dmesg.txt -- 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/1341270 Title: Ubuntu 14.04 freezes on resume from suspend: GeForce GT 520 GPU with nouveau or proprietary nvidia-331 drivers, even when booted nosplash noquiet Status in “linux” package in Ubuntu: Confirmed Bug description: Generating individual reports as requested by Christopher M. Penalver and Chris Bainbridge in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1283938 via "ubuntu-bug linux". After forcing switch from nouveau to nvidia-331 (a sad story in itself as the System Settings pretend to handle that: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics- drivers-331/+bug/1315156) at least apportcheckresume does catch the issue as attached, but after Continue gives no further indication what data has been sent where (if at all) and how it may be commented or complemented, i.e. nothing opens in the browser, only local password prompt(s). Sometimes the screen shows a blinking text console mode prompt and the NumLock key can still turn its LED on and off for a few seconds under nivida-331 before the machine freezes with fans running after resume, while nouveau would even permit Ctrl-Alt-F1 occasionally (but then has other log-flooding issues as indicated at the prior link). Not being able to resume after suspend has kept my Ubuntu 14.04 LTS installation unusable for 3 months already. This is a recurring issue already exhibited by 12.04 LTS, affecting numerous systems even back then (cf. references from https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/999638) on kernels before 3.2.0-25-generic-pae, as well as with Intel graphics - but in spite of the regression users continue to be isolated into individual bugs (hardly cross-linked with the major ones) and sent through BIOS upgrades and mainline kernel testing while the bugs in spite of their Heat continue to lack the requisite Importance and Assignment (or orchestrated testing for potential Mode Setting implications). ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-30-generic 3.13.0-30.55 ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2 Uname: Linux 3.13.0-30-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: user 2417 F.... pulseaudio /dev/snd/controlC2: user 2417 F.... pulseaudio /dev/snd/controlC3: user 2417 F.... pulseaudio /dev/snd/controlC0: user 2417 F.... pulseaudio CurrentDesktop: Unity Date: Sun Jul 13 12:20:23 2014 HibernationDevice: RESUME=UUID=268e28b5-d1d2-41ba-96cd-dbc77d8ec2ad InstallationDate: Installed on 2014-04-22 (81 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Hewlett-Packard HP Compaq dc7800p Convertible Minitower ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-30-generic root=UUID=dbc867b7-24fc-40ab-93bd-b34f10eb7044 ro RelatedPackageVersions: linux-restricted-modules-3.13.0-30-generic N/A linux-backports-modules-3.13.0-30-generic N/A linux-firmware 1.127.4 RfKill: 1: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/21/2011 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 786F1 v01.32 dmi.board.asset.tag: CZC8277VRK dmi.board.name: 0AACh dmi.board.vendor: Hewlett-Packard dmi.chassis.asset.tag: CZC8277VRK dmi.chassis.type: 6 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr786F1v01.32:bd07/21/2011:svnHewlett-Packard:pnHPCompaqdc7800pConvertibleMinitower:pvr:rvnHewlett-Packard:rn0AACh:rvr:cvnHewlett-Packard:ct6:cvr: dmi.product.name: HP Compaq dc7800p Convertible Minitower dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1341270/+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
