new kernel won't boot on iMac

[pikapika]

the new kernel image won't boot with my imac, even with disabling splash and quiet in grub, there is nothing else than a purple screen, no informations displayed, no way to know what's going on
older kernels works flawlessly

WORKAROUND: I added "blacklist nvidia" to /etc/modprobe.d/blacklist.conf

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-11-generic-pae 2.6.38-11.47
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic-pae 2.6.38.7
Uname: Linux 2.6.38-10-generic-pae i686
NonfreeKernelModules: nvidia wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: raphael 2287 F.... pulseaudio
                      raphael 5718 F.... alsamixer
 /dev/snd/seq: timidity 1886 F.... timidity
CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xd3580000 irq 20'
   Mixer name : 'Realtek ALC889A'
   Components : 'HDA:10ec0885,106b4300,00100103'
   Controls : 33
   Simple ctrls : 19
Date: Wed Jul 20 16:17:23 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Apple Inc. iMac9,1
ProcEnviron:
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 SHELL=/usr/bin/zsh
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic-pae root=UUID=3bb7010c-c1cd-446a-9429-16a2e2016023 ro
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-10-generic-pae N/A
 linux-backports-modules-2.6.38-10-generic-pae N/A
 linux-firmware 1.52.1
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2011-05-02 (79 days ago)
dmi.bios.date: 04/27/09
dmi.bios.vendor: Apple Inc.
dmi.bios.version: IM91.88Z.008D.B08.0904271717
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F2218EA9
dmi.board.vendor: Apple Inc.
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 13
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F2218EA9
dmi.modalias: dmi:bvnAppleInc.:bvrIM91.88Z.008D.B08.0904271717:bd04/27/09:svnAppleInc.:pniMac9,1:pvr1.0:rvnAppleInc.:rnMac-F2218EA9:rvr:cvnAppleInc.:ct13:cvrMac-F2218EA9:
dmi.product.name: iMac9,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[Herton R. Krzesinski (herton)]

Hi, can you follow the steps described at "Boot Options" section from https://wiki.ubuntu.com/DebuggingKernelBoot page, and report back here where it's freezing? A picture with messages showing where it stops can help finding the problem.

When following the steps 4 and 5 from that page, it misses that you also should replace "set gfxpayload=$linux_gfx_mode" line with "set gfxpayload=text" on natty, to avoid it keeping the graphic mode ("purple screen"), so please do this change as well.

[pikapika (pikapika-8-0)]

hi,

i tried exactly as described and changed to text mode.

i have a few lines that boot, but quickly the screen turns black, and nothing more happens.
it was too quick to take a picture, but the screen went black after something like "system 00:01: Plug and Play ACPI device, IDs PNP0c02 (active)" (not exactly this line, i took it from syslog from the working kernel). Anyway it was a message about PnP cards discovering.
No error messages happened after, just a black screen and time passing by.
thanks

[Herton R. Krzesinski (herton)]

Ok. May be you have some problem with the nvidia proprietary module, can you try to disable or remove nvidia proprietary driver? I don't know how you installed, probably you can disable it with jockey (jockey-gtk or jockey-text).

[pikapika (pikapika-8-0)]

hi,

I added "blacklist nvidia" to /etc/modprobe.d/blacklist.conf. and in fact, the kernel booted fine afterwards.

[pikapika (pikapika-8-0)]

seems to be fixed in oneiric

[Dave Brosius (dbrosius)]

3.0 kernel and ocelot stops booting at the purple screen (no icons) on pc as well, 32 bit. Have GEForce 550 card.

Even the installer CD won't boot.

Boots fine with 2.6.38

[dino99 (9d9)]

That version is no more supported; please open a new bug report if the actual archive found version also has the same issue.