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[Bug 598859] Re: crach on kde start

To: gma500@xxxxxxxxxxxxxxxxxxx
From: Fonkie <armin@xxxxxxx>
Date: Sun, 27 Jun 2010 23:29:56 -0000
Reply-to: Bug 598859 <598859@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
apport information

** Tags added: apport-collected

** Description changed:

  - while booting the drm crashes
  - kdm comes up fine and fast / text consoles work great
  - while starting kde (the first time - no special user config) the system hangs
  
  the log of kde gives errors about not being able to init glx right
  before the hang
  
  this is the kernel/stack trace
  
  Jun 26 12:12:50 flat kernel: [   14.969312] [drm] Initialized drm 1.1.0 20060810
  Jun 26 12:12:50 flat kernel: [   15.010670] psb 0000:00:02.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
  Jun 26 12:12:50 flat kernel: [   15.010779] [drm] psb - 5.0.1.0046
  Jun 26 12:12:50 flat kernel: [   15.049211] psb 0000:00:02.0: firmware: requesting msvdx_fw.bin
  Jun 26 12:12:50 flat kernel: [   15.069423] [drm] SGX core id = 0x01130000
  Jun 26 12:12:50 flat kernel: [   15.069432] [drm] SGX core rev major = 0x01, minor = 0x02
  Jun 26 12:12:50 flat kernel: [   15.069438] [drm] SGX core rev maintenance = 0x01, designer = 0x00
  Jun 26 12:12:50 flat kernel: [   15.070189] resource map sanity check conflict: 0x7f6a3010 0x7fea300f 0x7f6f0000 0x7fffffff reserved
  Jun 26 12:12:50 flat kernel: [   15.070199] ------------[ cut here ]------------
  Jun 26 12:12:50 flat kernel: [   15.070220] WARNING: at /build/buildd/linux-2.6.32/arch/x86/mm/ioremap.c:135 __ioremap_caller+0x29f/0x2f0()
  Jun 26 12:12:50 flat kernel: [   15.070231] Hardware name: VGN-P11Z_Q
  Jun 26 12:12:50 flat kernel: [   15.070237] Info: mapping multiple BARs. Your kernel is fine.
  Jun 26 12:12:50 flat kernel: [   15.070244] Modules linked in: psb(+) drm_psb agpgart i2c_algo_bit rfcomm sco ppdev bridge stp bnep l2cap snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy arc4 snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device ath9k mac80211 uvcvideo snd video ath sony_laptop videodev v4l1_compat btusb bluetooth output i2c_isch psmouse serio_raw cfg80211 led_class soundcore snd_page_alloc lp parport pata_sch sky2
  Jun 26 12:12:50 flat kernel: [   15.070383] Pid: 937, comm: modprobe Not tainted 2.6.32-22-generic #36-Ubuntu
  Jun 26 12:12:50 flat kernel: [   15.070392] Call Trace:
  Jun 26 12:12:50 flat kernel: [   15.070411]  [<c014c3d2>] warn_slowpath_common+0x72/0xa0
  Jun 26 12:12:50 flat kernel: [   15.070426]  [<c012bb7f>] ? __ioremap_caller+0x29f/0x2f0
  Jun 26 12:12:50 flat kernel: [   15.070440]  [<c012bb7f>] ? __ioremap_caller+0x29f/0x2f0
  Jun 26 12:12:50 flat kernel: [   15.070455]  [<c014c44b>] warn_slowpath_fmt+0x2b/0x30
  Jun 26 12:12:50 flat kernel: [   15.070469]  [<c012bb7f>] __ioremap_caller+0x29f/0x2f0
  Jun 26 12:12:50 flat kernel: [   15.070486]  [<c01ee732>] ? free_unmap_vmap_area_noflush+0x32/0x70
  Jun 26 12:12:50 flat kernel: [   15.070502]  [<c012bceb>] ioremap_nocache+0x1b/0x20
  Jun 26 12:12:50 flat kernel: [   15.070542]  [<f8651493>] ? intel_lvds_init+0x1f3/0x6f0 [psb]
  Jun 26 12:12:50 flat kernel: [   15.070576]  [<f8651493>] intel_lvds_init+0x1f3/0x6f0 [psb]
  Jun 26 12:12:50 flat kernel: [   15.070592]  [<c058b6fd>] ? _spin_lock+0xd/0x10
  Jun 26 12:12:50 flat kernel: [   15.070605]  [<c01fcec3>] ? __slab_alloc+0x163/0x220
  Jun 26 12:12:50 flat kernel: [   15.070638]  [<f86519bf>] ? intel_crtc_init+0x2f/0xa0 [psb]
  Jun 26 12:12:50 flat kernel: [   15.070671]  [<f86519e2>] ? intel_crtc_init+0x52/0xa0 [psb]
  Jun 26 12:12:50 flat kernel: [   15.070705]  [<f8651b18>] intel_modeset_init+0xe8/0x450 [psb]
  Jun 26 12:12:50 flat kernel: [   15.070721]  [<c012a438>] ? default_spin_lock_flags+0x8/0x10
  Jun 26 12:12:50 flat kernel: [   15.070735]  [<c058b5ff>] ? _spin_lock_irqsave+0x2f/0x50
  Jun 26 12:12:50 flat kernel: [   15.070767]  [<f8644210>] psb_driver_load+0x6e0/0x860 [psb]
  Jun 26 12:12:50 flat kernel: [   15.070808]  [<f861da66>] psb_drm_get_dev+0x336/0x620 [drm_psb]
  Jun 26 12:12:50 flat kernel: [   15.070825]  [<c025fa8b>] ? sysfs_addrm_finish+0x3b/0xf0
  Jun 26 12:12:50 flat kernel: [   15.070839]  [<c025f2b0>] ? sysfs_addrm_start+0x60/0xa0
  Jun 26 12:12:50 flat kernel: [   15.070868]  [<f8643692>] probe+0x12/0x20 [psb]
  Jun 26 12:12:50 flat kernel: [   15.070885]  [<c0363883>] local_pci_probe+0x13/0x20
  Jun 26 12:12:50 flat kernel: [   15.070898]  [<c0364688>] pci_device_probe+0x68/0x90
  Jun 26 12:12:50 flat kernel: [   15.070913]  [<c03e689d>] really_probe+0x4d/0x140
  Jun 26 12:12:50 flat kernel: [   15.070928]  [<c03ed1ae>] ? pm_runtime_barrier+0x4e/0xc0
  Jun 26 12:12:50 flat kernel: [   15.070943]  [<c03e69cc>] driver_probe_device+0x3c/0x60
  Jun 26 12:12:50 flat kernel: [   15.070958]  [<c03e6a71>] __driver_attach+0x81/0x90
  Jun 26 12:12:50 flat kernel: [   15.070972]  [<c03e5eb3>] bus_for_each_dev+0x53/0x80
  Jun 26 12:12:50 flat kernel: [   15.070987]  [<c03e676e>] driver_attach+0x1e/0x20
  Jun 26 12:12:50 flat kernel: [   15.071000]  [<c03e69f0>] ? __driver_attach+0x0/0x90
  Jun 26 12:12:50 flat kernel: [   15.071012]  [<c03e6135>] bus_add_driver+0xd5/0x280
  Jun 26 12:12:50 flat kernel: [   15.071026]  [<c03645c0>] ? pci_device_remove+0x0/0x40
  Jun 26 12:12:50 flat kernel: [   15.071039]  [<c03e6d6a>] driver_register+0x6a/0x130
  Jun 26 12:12:50 flat kernel: [   15.071051]  [<c0364cce>] ? pci_get_dev_by_id+0x3e/0x80
  Jun 26 12:12:50 flat kernel: [   15.071065]  [<c03648c5>] __pci_register_driver+0x45/0xb0
  Jun 26 12:12:50 flat kernel: [   15.071102]  [<f86193f3>] psb_drm_init+0x193/0x1c0 [drm_psb]
  Jun 26 12:12:50 flat kernel: [   15.071134]  [<f851401c>] psb_init+0x1c/0x1e [psb]
  Jun 26 12:12:50 flat kernel: [   15.071149]  [<c0101131>] do_one_initcall+0x31/0x190
  Jun 26 12:12:50 flat kernel: [   15.071179]  [<f8514000>] ? psb_init+0x0/0x1e [psb]
  Jun 26 12:12:50 flat kernel: [   15.071195]  [<c0182340>] sys_init_module+0xb0/0x210
  Jun 26 12:12:50 flat kernel: [   15.071209]  [<c01033ec>] syscall_call+0x7/0xb
  Jun 26 12:12:50 flat kernel: [   15.071220] ---[ end trace 572ad1f1257aee6f ]---
  Jun 26 12:12:50 flat kernel: [   15.074037] [drm] intel_lvds_init: OpRegion has the VBT address
  Jun 26 12:12:50 flat kernel: [   15.074057] [drm] intel_lvds_init: The bdb->signature is BIOS_DATA_BLOCK <83>, the bdb_off is 48
  Jun 26 12:12:50 flat kernel: [   15.074093] [drm] intel_lvds_init: BLC Data in BIOS VBT tables: datasize=0 paneltype=9                                  
                          type=0x02 pol=0x00 freq=0x00c8 minlevel=0x08                                                                    i2caddr=0x58 cmd=0xaa 
  Jun 26 12:12:50 flat kernel: [   15.074124] [drm] intel_lvds_init: the CoreClock is 200
  Jun 26 12:12:50 flat kernel: [   15.074136] [drm] intel_lvds_init: sku_value is 0x00800000
  Jun 26 12:12:50 flat kernel: [   15.074144] [drm] intel_lvds_init: sku_bMaxResEnableInt is 0
  Jun 26 12:12:50 flat kernel: [   15.074295] [drm] intel_lvds_set_backlight: the level is 100
  Jun 26 12:12:50 flat kernel: [   15.074305] [drm] LVDSGetPWMMaxBacklight: the max_pwm_blc is 31250.
  Jun 26 12:12:51 flat kernel: [   15.172589] [drm] unable to read EDID block.
  Jun 26 12:12:51 flat kernel: [   15.328588] [drm] unable to read EDID block.
  Jun 26 12:12:51 flat kernel: [   15.484590] [drm] unable to read EDID block.
  Jun 26 12:12:51 flat kernel: [   15.540157] [drm] LVDS: no EDID data from device, reading ACPI _DDC data.
  Jun 26 12:12:51 flat kernel: [   15.541815] [drm] intel_sdvo_init: sku_value is 0x00800000
  Jun 26 12:12:51 flat kernel: [   15.541822] [drm] intel_sdvo_init: sku_bSDVOEnable is 1
  Jun 26 12:12:51 flat kernel: [   15.987357] [drm] intel_sdvo_init: sku_value is 0x00800000
  Jun 26 12:12:51 flat kernel: [   15.987366] [drm] intel_sdvo_init: sku_bSDVOEnable is 1
  Jun 26 12:12:51 flat kernel: [   16.092592] [drm] unable to read EDID block.
  Jun 26 12:12:52 flat kernel: [   16.248589] [drm] unable to read EDID block.
  Jun 26 12:12:52 flat kernel: [   16.404590] [drm] unable to read EDID block.
  Jun 26 12:12:52 flat kernel: [   16.460158] [drm] LVDS: no EDID data from device, reading ACPI _DDC data.
  Jun 26 12:12:52 flat kernel: [   17.016156] [drm] intel_lvds_prepare
  Jun 26 12:12:52 flat kernel: [   17.016166] [drm] intel_lvds_set_power: 0
  Jun 26 12:12:52 flat kernel: [   17.016174] [drm] intel_lvds_set_backlight: the level is 0
  Jun 26 12:12:52 flat kernel: [   17.016182] [drm] LVDSGetPWMMaxBacklight: the max_pwm_blc is 31250.
  Jun 26 12:12:52 flat kernel: [   17.043951] Console: switching to colour frame buffer device 200x48
  Jun 26 12:12:53 flat kernel: [   17.246918] [drm] LVDS: set mode 1600x768 c
  Jun 26 12:12:53 flat kernel: [   17.246984] [drm] intel_lvds_commit
  Jun 26 12:12:53 flat kernel: [   17.246990] [drm] intel_lvds_set_power: 1
  Jun 26 12:12:53 flat kernel: [   17.726069] [drm] intel_lvds_set_backlight: the level is 100
  Jun 26 12:12:53 flat kernel: [   17.726078] [drm] LVDSGetPWMMaxBacklight: the max_pwm_blc is 31250.
  Jun 26 12:12:53 flat kernel: [   17.726091] [drm] fb0: psbfb frame buffer device
  Jun 26 12:12:53 flat kernel: [   17.726108] [drm] intel_lvds_prepare
  Jun 26 12:12:53 flat kernel: [   17.726113] [drm] intel_lvds_set_power: 0
  Jun 26 12:12:53 flat kernel: [   17.726118] [drm] intel_lvds_set_backlight: the level is 0
  Jun 26 12:12:53 flat kernel: [   17.726124] [drm] LVDSGetPWMMaxBacklight: the max_pwm_blc is 31250.
  Jun 26 12:12:53 flat kernel: [   17.786842] [drm] LVDS: set mode 1600x768 a
  Jun 26 12:12:53 flat kernel: [   17.786911] [drm] intel_lvds_commit
  Jun 26 12:12:53 flat kernel: [   17.786916] [drm] intel_lvds_set_power: 1
  Jun 26 12:12:54 flat kernel: [   18.326092] [drm] intel_lvds_set_backlight: the level is 100
  Jun 26 12:12:54 flat kernel: [   18.326101] [drm] LVDSGetPWMMaxBacklight: the max_pwm_blc is 31250.
  Jun 26 12:12:54 flat kernel: [   18.360103] [drm] Initialized psb 4.41.1 20090416 on minor 0
  Jun 26 12:12:54 flat kernel: [   18.511759] buffer underrun 0x0
  Jun 26 12:13:02 flat kernel: [   25.528001] [drm] intel_lvds_prepare
+ --- 
+ Architecture: i386
+ DistroRelease: Ubuntu 10.04
+ InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427)
+ Package: xpsb-glx 0.18-0ubuntu1netbook2~1004um1ubuntu1
+ PackageArchitecture: i386
+ ProcEnviron:
+  PATH=(custom, no user)
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
+ ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
+ Tags: lucid
+ Uname: Linux 2.6.32-22-generic i686
+ UnreportableReason: This is not a genuine Ubuntu package
+ UserGroups:

** Attachment added: "Dependencies.txt"
   http://launchpadlibrarian.net/51006695/Dependencies.txt

-- 
crach on kde start
https://bugs.launchpad.net/bugs/598859
You received this bug notification because you are a member of GMA500
Team, which is subscribed to Intel GMA500 'Poulsbo' drivers.

Status in Intel GMA500 'Poulsbo': New

Bug description:
- while booting the drm crashes
- kdm comes up fine and fast / text consoles work great
- while starting kde (the first time - no special user config) the system hangs

the log of kde gives errors about not being able to init glx right before the hang

this is the kernel/stack trace

Jun 26 12:12:50 flat kernel: [   14.969312] [drm] Initialized drm 1.1.0 20060810
Jun 26 12:12:50 flat kernel: [   15.010670] psb 0000:00:02.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
Jun 26 12:12:50 flat kernel: [   15.010779] [drm] psb - 5.0.1.0046
Jun 26 12:12:50 flat kernel: [   15.049211] psb 0000:00:02.0: firmware: requesting msvdx_fw.bin
Jun 26 12:12:50 flat kernel: [   15.069423] [drm] SGX core id = 0x01130000
Jun 26 12:12:50 flat kernel: [   15.069432] [drm] SGX core rev major = 0x01, minor = 0x02
Jun 26 12:12:50 flat kernel: [   15.069438] [drm] SGX core rev maintenance = 0x01, designer = 0x00
Jun 26 12:12:50 flat kernel: [   15.070189] resource map sanity check conflict: 0x7f6a3010 0x7fea300f 0x7f6f0000 0x7fffffff reserved
Jun 26 12:12:50 flat kernel: [   15.070199] ------------[ cut here ]------------
Jun 26 12:12:50 flat kernel: [   15.070220] WARNING: at /build/buildd/linux-2.6.32/arch/x86/mm/ioremap.c:135 __ioremap_caller+0x29f/0x2f0()
Jun 26 12:12:50 flat kernel: [   15.070231] Hardware name: VGN-P11Z_Q
Jun 26 12:12:50 flat kernel: [   15.070237] Info: mapping multiple BARs. Your kernel is fine.
Jun 26 12:12:50 flat kernel: [   15.070244] Modules linked in: psb(+) drm_psb agpgart i2c_algo_bit rfcomm sco ppdev bridge stp bnep l2cap snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy arc4 snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device ath9k mac80211 uvcvideo snd video ath sony_laptop videodev v4l1_compat btusb bluetooth output i2c_isch psmouse serio_raw cfg80211 led_class soundcore snd_page_alloc lp parport pata_sch sky2
Jun 26 12:12:50 flat kernel: [   15.070383] Pid: 937, comm: modprobe Not tainted 2.6.32-22-generic #36-Ubuntu
Jun 26 12:12:50 flat kernel: [   15.070392] Call Trace:
Jun 26 12:12:50 flat kernel: [   15.070411]  [<c014c3d2>] warn_slowpath_common+0x72/0xa0
Jun 26 12:12:50 flat kernel: [   15.070426]  [<c012bb7f>] ? __ioremap_caller+0x29f/0x2f0
Jun 26 12:12:50 flat kernel: [   15.070440]  [<c012bb7f>] ? __ioremap_caller+0x29f/0x2f0
Jun 26 12:12:50 flat kernel: [   15.070455]  [<c014c44b>] warn_slowpath_fmt+0x2b/0x30
Jun 26 12:12:50 flat kernel: [   15.070469]  [<c012bb7f>] __ioremap_caller+0x29f/0x2f0
Jun 26 12:12:50 flat kernel: [   15.070486]  [<c01ee732>] ? free_unmap_vmap_area_noflush+0x32/0x70
Jun 26 12:12:50 flat kernel: [   15.070502]  [<c012bceb>] ioremap_nocache+0x1b/0x20
Jun 26 12:12:50 flat kernel: [   15.070542]  [<f8651493>] ? intel_lvds_init+0x1f3/0x6f0 [psb]
Jun 26 12:12:50 flat kernel: [   15.070576]  [<f8651493>] intel_lvds_init+0x1f3/0x6f0 [psb]
Jun 26 12:12:50 flat kernel: [   15.070592]  [<c058b6fd>] ? _spin_lock+0xd/0x10
Jun 26 12:12:50 flat kernel: [   15.070605]  [<c01fcec3>] ? __slab_alloc+0x163/0x220
Jun 26 12:12:50 flat kernel: [   15.070638]  [<f86519bf>] ? intel_crtc_init+0x2f/0xa0 [psb]
Jun 26 12:12:50 flat kernel: [   15.070671]  [<f86519e2>] ? intel_crtc_init+0x52/0xa0 [psb]
Jun 26 12:12:50 flat kernel: [   15.070705]  [<f8651b18>] intel_modeset_init+0xe8/0x450 [psb]
Jun 26 12:12:50 flat kernel: [   15.070721]  [<c012a438>] ? default_spin_lock_flags+0x8/0x10
Jun 26 12:12:50 flat kernel: [   15.070735]  [<c058b5ff>] ? _spin_lock_irqsave+0x2f/0x50
Jun 26 12:12:50 flat kernel: [   15.070767]  [<f8644210>] psb_driver_load+0x6e0/0x860 [psb]
Jun 26 12:12:50 flat kernel: [   15.070808]  [<f861da66>] psb_drm_get_dev+0x336/0x620 [drm_psb]
Jun 26 12:12:50 flat kernel: [   15.070825]  [<c025fa8b>] ? sysfs_addrm_finish+0x3b/0xf0
Jun 26 12:12:50 flat kernel: [   15.070839]  [<c025f2b0>] ? sysfs_addrm_start+0x60/0xa0
Jun 26 12:12:50 flat kernel: [   15.070868]  [<f8643692>] probe+0x12/0x20 [psb]
Jun 26 12:12:50 flat kernel: [   15.070885]  [<c0363883>] local_pci_probe+0x13/0x20
Jun 26 12:12:50 flat kernel: [   15.070898]  [<c0364688>] pci_device_probe+0x68/0x90
Jun 26 12:12:50 flat kernel: [   15.070913]  [<c03e689d>] really_probe+0x4d/0x140
Jun 26 12:12:50 flat kernel: [   15.070928]  [<c03ed1ae>] ? pm_runtime_barrier+0x4e/0xc0
Jun 26 12:12:50 flat kernel: [   15.070943]  [<c03e69cc>] driver_probe_device+0x3c/0x60
Jun 26 12:12:50 flat kernel: [   15.070958]  [<c03e6a71>] __driver_attach+0x81/0x90
Jun 26 12:12:50 flat kernel: [   15.070972]  [<c03e5eb3>] bus_for_each_dev+0x53/0x80
Jun 26 12:12:50 flat kernel: [   15.070987]  [<c03e676e>] driver_attach+0x1e/0x20
Jun 26 12:12:50 flat kernel: [   15.071000]  [<c03e69f0>] ? __driver_attach+0x0/0x90
Jun 26 12:12:50 flat kernel: [   15.071012]  [<c03e6135>] bus_add_driver+0xd5/0x280
Jun 26 12:12:50 flat kernel: [   15.071026]  [<c03645c0>] ? pci_device_remove+0x0/0x40
Jun 26 12:12:50 flat kernel: [   15.071039]  [<c03e6d6a>] driver_register+0x6a/0x130
Jun 26 12:12:50 flat kernel: [   15.071051]  [<c0364cce>] ? pci_get_dev_by_id+0x3e/0x80
Jun 26 12:12:50 flat kernel: [   15.071065]  [<c03648c5>] __pci_register_driver+0x45/0xb0
Jun 26 12:12:50 flat kernel: [   15.071102]  [<f86193f3>] psb_drm_init+0x193/0x1c0 [drm_psb]
Jun 26 12:12:50 flat kernel: [   15.071134]  [<f851401c>] psb_init+0x1c/0x1e [psb]
Jun 26 12:12:50 flat kernel: [   15.071149]  [<c0101131>] do_one_initcall+0x31/0x190
Jun 26 12:12:50 flat kernel: [   15.071179]  [<f8514000>] ? psb_init+0x0/0x1e [psb]
Jun 26 12:12:50 flat kernel: [   15.071195]  [<c0182340>] sys_init_module+0xb0/0x210
Jun 26 12:12:50 flat kernel: [   15.071209]  [<c01033ec>] syscall_call+0x7/0xb
Jun 26 12:12:50 flat kernel: [   15.071220] ---[ end trace 572ad1f1257aee6f ]---
Jun 26 12:12:50 flat kernel: [   15.074037] [drm] intel_lvds_init: OpRegion has the VBT address
Jun 26 12:12:50 flat kernel: [   15.074057] [drm] intel_lvds_init: The bdb->signature is BIOS_DATA_BLOCK <83>, the bdb_off is 48
Jun 26 12:12:50 flat kernel: [   15.074093] [drm] intel_lvds_init: BLC Data in BIOS VBT tables: datasize=0 paneltype=9                                  
                        type=0x02 pol=0x00 freq=0x00c8 minlevel=0x08                                                                    i2caddr=0x58 cmd=0xaa 
Jun 26 12:12:50 flat kernel: [   15.074124] [drm] intel_lvds_init: the CoreClock is 200
Jun 26 12:12:50 flat kernel: [   15.074136] [drm] intel_lvds_init: sku_value is 0x00800000
Jun 26 12:12:50 flat kernel: [   15.074144] [drm] intel_lvds_init: sku_bMaxResEnableInt is 0
Jun 26 12:12:50 flat kernel: [   15.074295] [drm] intel_lvds_set_backlight: the level is 100
Jun 26 12:12:50 flat kernel: [   15.074305] [drm] LVDSGetPWMMaxBacklight: the max_pwm_blc is 31250.
Jun 26 12:12:51 flat kernel: [   15.172589] [drm] unable to read EDID block.
Jun 26 12:12:51 flat kernel: [   15.328588] [drm] unable to read EDID block.
Jun 26 12:12:51 flat kernel: [   15.484590] [drm] unable to read EDID block.
Jun 26 12:12:51 flat kernel: [   15.540157] [drm] LVDS: no EDID data from device, reading ACPI _DDC data.
Jun 26 12:12:51 flat kernel: [   15.541815] [drm] intel_sdvo_init: sku_value is 0x00800000
Jun 26 12:12:51 flat kernel: [   15.541822] [drm] intel_sdvo_init: sku_bSDVOEnable is 1
Jun 26 12:12:51 flat kernel: [   15.987357] [drm] intel_sdvo_init: sku_value is 0x00800000
Jun 26 12:12:51 flat kernel: [   15.987366] [drm] intel_sdvo_init: sku_bSDVOEnable is 1
Jun 26 12:12:51 flat kernel: [   16.092592] [drm] unable to read EDID block.
Jun 26 12:12:52 flat kernel: [   16.248589] [drm] unable to read EDID block.
Jun 26 12:12:52 flat kernel: [   16.404590] [drm] unable to read EDID block.
Jun 26 12:12:52 flat kernel: [   16.460158] [drm] LVDS: no EDID data from device, reading ACPI _DDC data.
Jun 26 12:12:52 flat kernel: [   17.016156] [drm] intel_lvds_prepare
Jun 26 12:12:52 flat kernel: [   17.016166] [drm] intel_lvds_set_power: 0
Jun 26 12:12:52 flat kernel: [   17.016174] [drm] intel_lvds_set_backlight: the level is 0
Jun 26 12:12:52 flat kernel: [   17.016182] [drm] LVDSGetPWMMaxBacklight: the max_pwm_blc is 31250.
Jun 26 12:12:52 flat kernel: [   17.043951] Console: switching to colour frame buffer device 200x48
Jun 26 12:12:53 flat kernel: [   17.246918] [drm] LVDS: set mode 1600x768 c
Jun 26 12:12:53 flat kernel: [   17.246984] [drm] intel_lvds_commit
Jun 26 12:12:53 flat kernel: [   17.246990] [drm] intel_lvds_set_power: 1
Jun 26 12:12:53 flat kernel: [   17.726069] [drm] intel_lvds_set_backlight: the level is 100
Jun 26 12:12:53 flat kernel: [   17.726078] [drm] LVDSGetPWMMaxBacklight: the max_pwm_blc is 31250.
Jun 26 12:12:53 flat kernel: [   17.726091] [drm] fb0: psbfb frame buffer device
Jun 26 12:12:53 flat kernel: [   17.726108] [drm] intel_lvds_prepare
Jun 26 12:12:53 flat kernel: [   17.726113] [drm] intel_lvds_set_power: 0
Jun 26 12:12:53 flat kernel: [   17.726118] [drm] intel_lvds_set_backlight: the level is 0
Jun 26 12:12:53 flat kernel: [   17.726124] [drm] LVDSGetPWMMaxBacklight: the max_pwm_blc is 31250.
Jun 26 12:12:53 flat kernel: [   17.786842] [drm] LVDS: set mode 1600x768 a
Jun 26 12:12:53 flat kernel: [   17.786911] [drm] intel_lvds_commit
Jun 26 12:12:53 flat kernel: [   17.786916] [drm] intel_lvds_set_power: 1
Jun 26 12:12:54 flat kernel: [   18.326092] [drm] intel_lvds_set_backlight: the level is 100
Jun 26 12:12:54 flat kernel: [   18.326101] [drm] LVDSGetPWMMaxBacklight: the max_pwm_blc is 31250.
Jun 26 12:12:54 flat kernel: [   18.360103] [drm] Initialized psb 4.41.1 20090416 on minor 0
Jun 26 12:12:54 flat kernel: [   18.511759] buffer underrun 0x0
Jun 26 12:13:02 flat kernel: [   25.528001] [drm] intel_lvds_prepare
--- 
Architecture: i386
DistroRelease: Ubuntu 10.04
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427)
Package: xpsb-glx 0.18-0ubuntu1netbook2~1004um1ubuntu1
PackageArchitecture: i386
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
Tags: lucid
Uname: Linux 2.6.32-22-generic i686
UnreportableReason: This is not a genuine Ubuntu package
UserGroups:
References

[Bug 598859] [NEW] crach on kde start
From: Fonkie, 2010-06-26