[i945] Cannot start with KMS enabled with intel 82945G

[Yann Simon]

Binary package hint: xorg

Starting with KMs enabled with intel 82945G and uptart leads to following stack trace:

Jun 11 14:39:57 unicorn kernel: [ 32.384805] ------------[ cut here ]------------
Jun 11 14:39:57 unicorn kernel: [ 32.384828] WARNING: at /home/kernel-ppa/mainline/build/drivers/gpu/drm/i915/i915_gem.c:3840 i915_gem_idle+0x259/0x270 [i915]()
Jun 11 14:39:57 unicorn kernel: [ 32.384833] Hardware name: OptiPlex GX620
Jun 11 14:39:57 unicorn kernel: [ 32.384835] Modules linked in: i915 drm i2c_algo_bit binfmt_misc video output lp snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event pcmcia snd_seq iTCO_wdt iTCO_vendor_support intel_agp ppdev psmouse snd_timer snd_seq_device dcdbas yenta_socket rsrc_nonstatic pcmcia_core parport_pc parport serio_raw agpgart snd soundcore snd_page_alloc usbhid tg3
Jun 11 14:39:57 unicorn kernel: [ 32.384884] Pid: 2479, comm: Xorg Not tainted 2.6.30-020630-generic #020630
Jun 11 14:39:57 unicorn kernel: [ 32.384887] Call Trace:
Jun 11 14:39:57 unicorn kernel: [ 32.384902] [<f849d979>] ? i915_gem_idle+0x259/0x270 [i915]
Jun 11 14:39:57 unicorn kernel: [ 32.384912] [<c013b7fc>] warn_slowpath_common+0x7c/0xa0
Jun 11 14:39:57 unicorn kernel: [ 32.384925] [<f849d979>] ? i915_gem_idle+0x259/0x270 [i915]
Jun 11 14:39:57 unicorn kernel: [ 32.384931] [<c013b835>] warn_slowpath_null+0x15/0x20
Jun 11 14:39:57 unicorn kernel: [ 32.384945] [<f849d979>] i915_gem_idle+0x259/0x270 [i915]
Jun 11 14:39:57 unicorn kernel: [ 32.384964] [<f849da07>] i915_gem_leavevt_ioctl+0x27/0x40 [i915]
Jun 11 14:39:57 unicorn kernel: [ 32.384985] [<f843936e>] drm_ioctl+0x14e/0x370 [drm]
Jun 11 14:39:57 unicorn kernel: [ 32.384992] [<c02cb5ff>] ? cpumask_any_but+0x1f/0x40
Jun 11 14:39:57 unicorn kernel: [ 32.385006] [<f849d9e0>] ? i915_gem_leavevt_ioctl+0x0/0x40 [i915]
Jun 11 14:39:57 unicorn kernel: [ 32.385012] [<c0122518>] ? arch_flush_lazy_mmu_mode+0x8/0x40
Jun 11 14:39:57 unicorn kernel: [ 32.385017] [<c0127d32>] ? kunmap_atomic+0x72/0x90
Jun 11 14:39:57 unicorn kernel: [ 32.385025] [<c01abfdc>] ? do_wp_page+0xbc/0x760
Jun 11 14:39:57 unicorn kernel: [ 32.385031] [<c015cfd6>] ? tick_dev_program_event+0x36/0xb0
Jun 11 14:39:57 unicorn kernel: [ 32.385037] [<c01ad1a3>] ? handle_mm_fault+0x233/0x260
Jun 11 14:39:57 unicorn kernel: [ 32.385044] [<c01d404c>] vfs_ioctl+0x6c/0x80
Jun 11 14:39:57 unicorn kernel: [ 32.385048] [<c01d42d2>] do_vfs_ioctl+0x62/0x150
Jun 11 14:39:57 unicorn kernel: [ 32.385054] [<c0291ce0>] ? security_file_ioctl+0x10/0x20
Jun 11 14:39:57 unicorn kernel: [ 32.385058] [<c01d4413>] sys_ioctl+0x53/0x70
Jun 11 14:39:57 unicorn kernel: [ 32.385063] [<c0102ebc>] sysenter_do_call+0x12/0x28
Jun 11 14:39:57 unicorn kernel: [ 32.385067] ---[ end trace db500cae0dc68f84 ]---

If I start in "recover" mode, and then resume booting, everything works. Gdm appears, I can login, and KMS is enabled (the resolution of the virtual terminals is higher).

ProblemType: Bug
Architecture: i386
CurrentDmesg:
 [ 21.845584] [drm] DAC-6: set mode 1024x768 2a
 [ 21.845589] [drm] TMDS-8: set mode 1024x768 2a
 [ 23.736009] eth0: no IPv6 routers present
 [ 37.140324] [drm] TMDS-8: set mode 29
Date: Fri Jun 12 14:27:51 2009
DistroRelease: Ubuntu 9.10
MachineType: Dell Inc. OptiPlex GX620
Package: xorg 1:7.4~5ubuntu21
ProcCmdLine: root=UUID=c4a6ed3a-50c8-48f6-83e8-8f7e697d49ec ro single
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.30-8.9-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4~5ubuntu21
 libgl1-mesa-glx 7.4.1-1ubuntu2
 libdrm2 2.4.11-0ubuntu1
 xserver-xorg-video-intel 2:2.7.99.1+git20090602.ec2fde7c-0ubuntu2
 xserver-xorg-video-ati 1:6.12.2-2ubuntu1
SourcePackage: xorg
Uname: Linux 2.6.30-8-generic i686
dmi.bios.date: 11/30/2006
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 0HH807
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA11:bd11/30/2006:svnDellInc.:pnOptiPlexGX620:pvr:rvnDellInc.:rn0HH807:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex GX620
dmi.sys.vendor: Dell Inc.
fglrx: Not loaded
system:
 distro: Ubuntu
 architecture: i686kernel: 2.6.30-8-generic

[Yann Simon (yann-simon-fr)]

I removed the "splash" option on the kernel line and the problem does not occur anymore.

[Yann Simon (yann-simon-fr)]

After installing the version 0.5.32 of usplash
(https://launchpad.net/ubuntu/+source/usplash/0.5.32/+changelog - "Run usplash at the native resolution if KMS is available"), I can boot with the option "splash".

But then, no gdm. I cannot switch to a VT. The computer is dead.
Magic keys do not work. I could only hard reboot.

Stack trace:
Jun 22 15:08:52 unicorn kernel: [ 4.800127] agpgart-intel 0000:00:00.0: Intel 945G Chipset
Jun 22 15:08:52 unicorn kernel: [ 4.800901] agpgart-intel 0000:00:00.0: detected 7932K stolen memory
Jun 22 15:08:52 unicorn kernel: [ 4.808062] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xe0000000
Jun 22 15:08:52 unicorn kernel: [ 4.859694] [drm] Initialized drm 1.1.0 20060810
Jun 22 15:08:52 unicorn kernel: [ 4.924153] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
Jun 22 15:08:52 unicorn kernel: [ 4.924165] i915 0000:00:02.0: setting latency timer to 64
Jun 22 15:08:52 unicorn kernel: [ 4.971377] i2c-adapter i2c-1: sendbytes: NAK bailout.
Jun 22 15:08:52 unicorn kernel: [ 5.729948] allocated 1280x1024 fb: 0x007df000, bo f72e5060
Jun 22 15:08:52 unicorn kernel: [ 5.736068] fb0: inteldrmfb frame buffer device
Jun 22 15:08:52 unicorn kernel: [ 5.736073] registered panic notifier
Jun 22 15:08:52 unicorn kernel: [ 5.736083] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
Jun 22 15:08:52 unicorn kernel: [ 5.808158] Console: switching to colour frame buffer device 160x64
Jun 22 15:08:52 unicorn kernel: [ 5.808893] general protection fault: 0000 [#1] SMP
Jun 22 15:08:52 unicorn kernel: [ 5.808899] last sysfs file: /sys/module/drm/initstate
Jun 22 15:08:52 unicorn kernel: [ 5.808902] Modules linked in: fbcon tileblit font bitblit softcursor i915 i2c_algo_bit video output drm intel_agp agpgart
Jun 22 15:08:52 unicorn kernel: [ 5.808919]
Jun 22 15:08:52 unicorn kernel: [ 5.808923] Pid: 895, comm: init Not tainted (2.6.30-9-generic #10-Ubuntu) OptiPlex GX620
Jun 22 15:08:52 unicorn kernel: [ 5.808928] EIP: 0060:[<c01fda4e>] EFLAGS: 00010292 CPU: 1
Jun 22 15:08:52 unicorn kernel: [ 5.808935] EIP is at load_script+0xe/0x270
Jun 22 15:08:52 unicorn kernel: [ 5.808938] EAX: f68de000 EBX: f68de000 ECX: c01fda40 EDX: f6991fb4
Jun 22 15:08:52 unicorn kernel: [ 5.808941] ESI: f68de000 EDI: 09743904 EBP: f6991f30 ESP: f6991e98
Jun 22 15:08:52 unicorn kernel: [ 5.808945] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Jun 22 15:08:52 unicorn kernel: [ 5.808949] Process init (pid: 895, ti=f6990000 task=f6820c70 task.ti=f6990000)
Jun 22 15:08:52 unicorn kernel: [ 5.808952] Stack:
Jun 22 15:08:52 unicorn kernel: [ 5.808954] c01ae881 00000000 00000000 00000000 f6991eb0 c0122268 00000000 00000000
Jun 22 15:08:52 unicorn kernel: [ 5.808963] f6991f1c 00000020 f6991ec8 c0122268 f6991edc c053700a f6991edc 00000282
Jun 22 15:08:52 unicorn kernel: [ 5.808974] ff838000 f6991ef4 f6991ee8 c0122268 f6991efc c053700a f6991efc 00000286
Jun 22 15:08:52 unicorn kernel: [ 5.808985] Call Trace:
Jun 22 15:08:52 unicorn kernel: [ 5.808987] [<c01ae881>] ? __get_user_pages+0xf1/0x3a0
Jun 22 15:08:52 unicorn kernel: [...

[Yann Simon (yann-simon-fr)]

After last updates:
- linux kernel 2.6.30-10.12
- initramfs-tools 0.92bubuntu32

+ using upstream version of intel driver from http://ppa.launchpad.net/xorg-edgers/ubuntu/:
xserver-xorg-video-intel 2:2.7.99.901+git20090624.f0270bbb-0ubuntu0sarvatt~jaunty

the problem does not occur anymore.

[Bryce Harrington (bryce)]

Thanks, we now have a newer version than this included in karmic so guess we can consider this bug solved now.