Hi there, I finally managed to do a bisect on this. It took a while because the good and bad kernels were in non-linear branches so I had to do 14 kernel builds on my ancient laptop!
This is the end of the trail: $ git bisect bad 24576d23976746cb52e7700c4cadbf4bc1bc3472 is the first bad commit commit 24576d23976746cb52e7700c4cadbf4bc1bc3472 Author: Jesse Barnes <jbar...@virtuousgeek.org> Date: Tue Mar 26 09:25:45 2013 -0700 drm/i915: enable VT switchless resume v3 With the other bits in place, we can do this safely. v2: disable backlight on suspend to prevent premature enablement on resume v3: disable CRTCs on suspend to allow RTD3 (Kristen) Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org> Reviewed-by: Rodrigo Vivi <rodrigo.v...@gmail.com> Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch> :040000 040000 72fb279ebc4c48824015f43eac459d046dde3204 6797fd617ffd75b6e2a457aaabf5e90f9a4021c0 M drivers What do I do now? Best wishes, Peter ** Changed in: linux (Ubuntu) Status: Expired => Incomplete -- 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/1272945 Title: 8086:2592 [Toshiba Portégé R200-110] Black screen/freeze after resume with i915 Status in “linux” package in Ubuntu: Incomplete Bug description: When I suspend (using either the session menu or by closing the lid) and resume, my Toshiba Portege R200 fails to wake. The flashing orange light changes to blue but the screen remains black and the keyboard is unresponsive (Caps Lock doesn't work, Ctrl-Alt-F keys don't work etc). The only way to get out is to long-press the power button. This may be due to the i915 kms module. This is a regression as it used to work in 12.04 and 12.10. I did a chop using the mainline kernels and found that kernel 3.9.9 (dated 3.Jul.13) works fine but 3.10-rc1 (13.May.13) doesn't. In the mean time I'm running with 3.9.9. WORKAROUND: Use the VESA driver. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image (not installed) ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 Uname: Linux 3.11.0-15-generic i686 ApportVersion: 2.12.5-0ubuntu2.2 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: peter 1454 F.... pulseaudio CurrentDmesg: [ 136.627313] init: plymouth-stop pre-start process (2057) terminated with status 1 Date: Sun Jan 26 16:56:01 2014 HibernationDevice: RESUME=UUID=d4ddcbdb-5cdd-4c53-a3b4-2b7ef2bcb2c9 InstallationDate: Installed on 2013-10-14 (103 days ago) InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Beta i386 (20130925.1) MachineType: TOSHIBA PORTEGE R200 MarkForUpload: True PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=78b72944-a92e-433a-837d-e66c5d9fefde ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-15-generic N/A linux-backports-modules-3.11.0-15-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/25/2005 dmi.bios.vendor: TOSHIBA dmi.bios.version: Version 1.60 dmi.board.name: Portable PC dmi.board.vendor: TOSHIBA dmi.board.version: Version A0 dmi.chassis.asset.tag: 0000000000 dmi.chassis.type: 10 dmi.chassis.vendor: TOSHIBA dmi.chassis.version: Version 1.0 dmi.modalias: dmi:bvnTOSHIBA:bvrVersion1.60:bd10/25/2005:svnTOSHIBA:pnPORTEGER200:pvrPPR20E-01S02REN:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0: dmi.product.name: PORTEGE R200 dmi.product.version: PPR20E-01S02REN dmi.sys.vendor: TOSHIBA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1272945/+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