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[Bug 1290832] Re: No console display on D2xxx/N2xxx integrated graphics with raring enablement stack

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Brian Candler <1290832@xxxxxxxxxxxxxxxxxx>
Date: Wed, 12 Mar 2014 16:23:17 -0000
Reply-to: Bug 1290832 <1290832@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Intermediate update: the machine boots with the linux-
image-3.14.0-031400rc6-generic kernel, it still reports EDID errors,
dmesg info below.

Unfortunately the machine is now in data centre so I can't tell if it is
generating a VGA output or not! I'll update this when I'm next able to
get a console on it.

[    3.527667] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro
[    3.580869] lp: driver loaded but no devices found
[    3.825323] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042f conflicts with OpRegion 0x0000000000000400-0x000000000000047f (\PMIO) (20131218/utaddress-258)
[    3.825342] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042f conflicts with OpRegion 0x0000000000000400-0x000000000000042f (\SWC1) (20131218/utaddress-258)
[    3.825353] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    3.825362] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053f conflicts with OpRegion 0x0000000000000500-0x000000000000053b (\GPIO) (20131218/utaddress-258)
[    3.825373] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    3.825378] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052f conflicts with OpRegion 0x0000000000000500-0x000000000000053b (\GPIO) (20131218/utaddress-258)
[    3.825388] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    3.825392] lpc_ich: Resource conflict(s) found affecting gpio_ich
[    3.826838] [drm] Initialized drm 1.1.0 20060810
[    3.920586] gma500 0000:00:02.0: irq 45 for MSI/MSI-X
[    3.920701] gma500 0000:00:02.0: GPU: power management timed out.
[    3.968488] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[    3.969317] acpi device:20: registered as cooling_device4
[    3.969536] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input5
[    3.970924] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    3.970933] [drm] No driver support for vblank timestamp query.
[    4.052259] parport_pc 00:07: reported by Plug and Play ACPI
[    4.052323] parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE]
[    4.130397] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 130
[    4.142687] Raw EDID:
[    4.148460]  	00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
[    4.152372] lp0: using parport0 (interrupt-driven).
[    4.154698]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.160400]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.166027]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.171892]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.177001]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.181877]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.186623]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.300402] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 130
[    4.310033] Raw EDID:
[    4.314839]  	00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
[    4.319336]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.323997]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.328527]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.332981]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.336954]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.340420]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.343977]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.451258] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 130
[    4.458050] Raw EDID:
[    4.461533]  	00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
[    4.465042]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.468142]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.470927]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.473796]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.476268]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.478469]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.480623]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.592130] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 130
[    4.596592] Raw EDID:
[    4.599084]  	00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
[    4.601695]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.604434]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.607408]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.610058]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.612705]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.614886]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.617019]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[    4.619307] gma500 0000:00:02.0: LVDS-1: EDID block 0 invalid.
[    4.671888] random: nonblocking pool is initialized
[    4.706835] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1
[    4.706842] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1
[    4.920980] checking generic (cf800000 130000) vs hw (cf800000 7bf000)
[    4.920990] fb: conflicting fb hw usage psbdrmfb vs VESA VGA - removing generic driver
[    4.921058] Console: switching to colour dummy device 80x25
[    4.921577] fbcon: psbdrmfb (fb0) is primary device
[    5.217061] ppdev: user-space parallel port driver
[    5.540908] audit: type=1400 audit(1394640233.376:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=504 comm="apparmor_parser"
[    5.541335] audit: type=1400 audit(1394640233.376:3): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=504 comm="apparmor_parser"
[    5.541706] audit: type=1400 audit(1394640233.376:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=504 comm="apparmor_parser"
[    5.587115] Console: switching to colour frame buffer device 170x48
[    5.615847] gma500 0000:00:02.0: fb0: psbdrmfb frame buffer device
[    5.615851] gma500 0000:00:02.0: registered panic notifier
[    5.639988] [drm] Initialized gma500 1.0.0 2011-06-06 for 0000:00:02.0 on minor 0
[    5.640332] snd_hda_intel 0000:00:1b.0: irq 46 for MSI/MSI-X
[    5.796599] SKU: Nid=0x1d sku_cfg=0x4014c601
[    5.796608] SKU: port_connectivity=0x1
[    5.796611] SKU: enable_pcbeep=0x1
[    5.796614] SKU: check_sum=0x00000004
[    5.796618] SKU: customization=0x000000c6
[    5.796620] SKU: external_amp=0x0
[    5.796623] SKU: platform_type=0x0
[    5.796626] SKU: swap=0x0
[    5.796629] SKU: override=0x1
[    5.796898] autoconfig: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:line
[    5.796903]    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    5.796908]    hp_outs=1 (0x1b/0x0/0x0/0x0/0x0)
[    5.796911]    mono: mono_out=0x0
[    5.796914]    dig-out=0x1e/0x0
[    5.796917]    inputs:
[    5.796922]      Front Mic=0x19
[    5.796926]      Rear Mic=0x18
[    5.796930]      Line=0x1a
[    5.796934] realtek: No valid SSID, checking pincfg 0x4014c601 for NID 0x1d
[    5.796938] realtek: Enabling init ASM_ID=0xc601 CODEC_ID=10ec0662
[    5.820061] input: HDA Intel Line Out as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[    5.829519] input: HDA Intel Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[    5.830014] input: HDA Intel Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7

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https://bugs.launchpad.net/bugs/1290832

Title:
  No console display on D2xxx/N2xxx integrated graphics with raring
  enablement stack

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Installed Ubuntu 12.04.4 Server 64-bit on Intel D2700MUD motherboard
  (Atom D2700), 4GB RAM

  Installation process went fine. But after rebooting, after the grub
  screen the display was completely blank. This is using a VGA
  connection to an external monitor (the board also has a DVI output
  which I have not tried).

  The machine was however running fine, e.g. I was able to ssh to it
  after I had worked out what IP address it had picked up.

  Attempts to resolve the problem:

  * Add "nomodeset" to kernel command line (both with ctrl-e and in /etc/defaults/grub). No change.
  * Uncomment GRUB_GFXMODE=640x480 in /etc/defaults/grub. This made the GRUB menu text appear larger, but still completely blank after that point.
  * Upgrade BIOS to latest version 0076 (it was on 0067). No change.

  The only way I have been able to get the console to work is to remove
  the enablement stack and go to 3.2.0-60 kernel

  # apt-get remove --purge linux-generic-lts-raring linux-headers-generic-lts-raring linux-image-generic-lts-raring
  # apt-get install linux-generic linux-headers-generic linux-image linux-image-generic linux-libc-dev linux-tools
  # dpkg-query -l | grep -i '3\.8\.0'   # then remove these packages too

  Note: this is not an X11 issue - this is a server install and I don't
  have X11 at all.

  Additional info: when booting the 3.8.0 kernel I got a bunch of
  messages in dmesg about drm and EDID. These do not appear at all when
  booting with the 3.2.0 kernel

  ...
  [    3.109992] udevd[331]: starting version 175
  [    3.149552] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro
  [    2.324900] lp: driver loaded but no devices found
  [    2.504295] parport_pc 00:07: reported by Plug and Play ACPI
  [    2.504361] parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE]
  [    2.545514] [drm] Initialized drm 1.1.0 20060810
  [    2.563748] gma500 0000:00:02.0: setting latency timer to 64
  [    2.564027] gma500 0000:00:02.0: irq 45 for MSI/MSI-X
  [    2.564146] gma500 0000:00:02.0: GPU: power management timed out.
  [    2.582176] ACPI Warning: _BQC returned an invalid level (20121018/video-534)
  [    2.582479] acpi device:1f: registered as cooling_device4
  [    2.582937] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
  [    2.583079] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input5
  [    2.583980] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
  [    2.583988] [drm] No driver support for vblank timestamp query.
  [    2.610172] lp0: using parport0 (interrupt-driven).
  [    2.698484] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 130
  [    2.698505] Raw EDID:
  [    2.698515]  	00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
  [    2.698524]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.698533]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.698543]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.698552]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.698561]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.698571]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.698580]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.733915] type=1400 audit(1394539018.224:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=496 comm="apparmor_parser"
  [    2.735325] type=1400 audit(1394539018.224:3): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=496 comm="apparmor_parser"
  [    2.736218] type=1400 audit(1394539018.228:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=496 comm="apparmor_parser"
  [    2.741475] microcode: CPU0 sig=0x30661, pf=0x4, revision=0x10d
  [    2.802983] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 130
  [    2.803006] Raw EDID:
  [    2.803017]  	00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
  [    2.803028]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.803039]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.803050]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.803061]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.803071]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.803081]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.803091]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.907667] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 130
  [    2.907689] Raw EDID:
  [    2.907699]  	00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
  [    2.907710]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.907720]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.907731]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.907742]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.907754]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.907765]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    2.907775]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    3.015928] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 130
  [    3.015931] Raw EDID:
  [    3.015935]  	00 ff ff ff ff ff ff 00 ff ff ff ff ff ff ff ff
  [    3.015937]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    3.015939]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    3.015941]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    3.015943]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    3.015945]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    3.015947]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    3.015949]  	ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
  [    3.015959] gma500 0000:00:02.0: LVDS-1: EDID block 0 invalid.
  [    3.094935] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1
  [    3.094962] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1
  [    3.122828] microcode: CPU1 sig=0x30661, pf=0x4, revision=0x10d
  [    3.142022] microcode: CPU2 sig=0x30661, pf=0x4, revision=0x10d
  [    3.151521] microcode: CPU3 sig=0x30661, pf=0x4, revision=0x10d
  [    3.157364] microcode: Microcode Update Driver: v2.00 <tigran@xxxxxxxxxxxxxxxxxxxx>, Peter Oruba
  [    3.163527] coretemp coretemp.0: Unable to read TjMax from CPU 0
  [    3.163579] coretemp coretemp.0: Unable to read TjMax from CPU 2
  [    3.173122] ppdev: user-space parallel port driver
  [    3.267750] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
  [    3.290329] [drm] Initialized gma500 1.0.0 2011-06-06 for 0000:00:02.0 on minor 0
  [    3.290637] snd_hda_intel 0000:00:1b.0: irq 46 for MSI/MSI-X
  [    3.315313] input: HDA Intel Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input6
  [    3.315616] input: HDA Intel Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7
  [    3.315902] input: HDA Intel Line Out as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
  [    3.317217] ACPI Warning: 0x0000000000000428-0x000000000000042f SystemIO conflicts with Region \PMIO 1 (20121018/utaddress-251)
  [    3.317234] ACPI Warning: 0x0000000000000428-0x000000000000042f SystemIO conflicts with Region \SWC1 2 (20121018/utaddress-251)
  [    3.317246] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
  [    3.317254] ACPI Warning: 0x0000000000000530-0x000000000000053f SystemIO conflicts with Region \GPIO 1 (20121018/utaddress-251)
  [    3.317264] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
  [    3.317268] ACPI Warning: 0x0000000000000500-0x000000000000052f SystemIO conflicts with Region \GPIO 1 (20121018/utaddress-251)
  [    3.317275] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
  [    3.317278] lpc_ich: Resource conflict(s) found affecting gpio_ich
  [    3.373330] vesafb: mode is 640x480x32, linelength=2560, pages=0
  [    3.373338] vesafb: scrolling: redraw
  [    3.373345] vesafb: Truecolor: size=8:8:8:8, shift=24:16:8:0
  [    3.373360] mtrr: type mismatch for cf800000,200000 old: write-back new: write-combining
  [    3.373369] mtrr: type mismatch for cf800000,100000 old: write-back new: write-combining
  [    3.373377] mtrr: type mismatch for cf800000,80000 old: write-back new: write-combining
  [    3.373384] mtrr: type mismatch for cf800000,40000 old: write-back new: write-combining
  [    3.373391] mtrr: type mismatch for cf800000,20000 old: write-back new: write-combining
  [    3.373397] mtrr: type mismatch for cf800000,10000 old: write-back new: write-combining
  [    3.373404] mtrr: type mismatch for cf800000,8000 old: write-back new: write-combining
  [    3.373411] mtrr: type mismatch for cf800000,4000 old: write-back new: write-combining
  [    3.373418] mtrr: type mismatch for cf800000,2000 old: write-back new: write-combining
  [    3.373425] mtrr: type mismatch for cf800000,1000 old: write-back new: write-combining
  [    3.373784] vesafb: framebuffer at 0xcf800000, mapped to 0xffffc90005300000, using 1216k, total 1216k
  [    3.374211] Console: switching to colour frame buffer device 80x30
  [    3.377302] fb0: VESA VGA frame buffer device
  [    6.317590] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
  ...

  The EDID messages appear even if no VGA cable is connected.

  For comparison, on 3.2.0 what I see is

  ...
  [    3.109992] udevd[331]: starting version 175
  [    3.149552] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro
  [    3.179008] lp: driver loaded but no devices found
  [    3.392223] snd_hda_intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
  [    3.392338] snd_hda_intel 0000:00:1b.0: irq 45 for MSI/MSI-X
  [    3.392397] snd_hda_intel 0000:00:1b.0: setting latency timer to 64
  [    3.394895] parport_pc 00:08: reported by Plug and Play ACPI
  [    3.394968] parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE]
  [    3.469352] input: HDA Intel Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input3
  [    3.475425] input: HDA Intel Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input4
  [    3.475976] input: HDA Intel Line-Out as /devices/pci0000:00/0000:00:1b.0/sound/card0/input5
  [    3.482937] input: Microsoft Natural\xffffffc2\xffffffae\xffffffae Ergonomic Keyboard 4000 as /devices/pci0000:00/0000:00:1d.2/usb4/4-2/4-2:1.0/input/input6
  [    3.490181] lp0: using parport0 (interrupt-driven).
  [    3.492025] microsoft 0003:045E:00DB.0001: input,hidraw0: USB HID v1.11 Keyboard [Microsoft Natural\xffffffc2\xffffffae\xffffffae Ergonomic Keyboard 4000] on usb-0000:00:1d.2-2/input0
  [    3.513028] input: Microsoft Natural\xffffffc2\xffffffae\xffffffae Ergonomic Keyboard 4000 as /devices/pci0000:00/0000:00:1d.2/usb4/4-2/4-2:1.1/input/input7
  [    3.513724] microsoft 0003:045E:00DB.0002: input,hidraw1: USB HID v1.11 Device [Microsoft Natural\xffffffc2\xffffffae\xffffffae Ergonomic Keyboard 4000] on usb-0000:00:1d.2-2/input1
  [    3.600345] type=1400 audit(1394539701.711:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=485 comm="apparmor_parser"
  [    3.602959] type=1400 audit(1394539701.715:3): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=485 comm="apparmor_parser"
  [    3.603769] type=1400 audit(1394539701.715:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=485 comm="apparmor_parser"
  [    3.759393] ADDRCONF(NETDEV_UP): eth0: link is not ready
  [    3.935947] ppdev: user-space parallel port driver
  [    4.120133] vesafb: mode is 1280x1024x32, linelength=5120, pages=0
  [    4.120143] vesafb: scrolling: redraw
  [    4.120152] vesafb: Truecolor: size=8:8:8:8, shift=24:16:8:0
  [    4.120170] mtrr: type mismatch for cf800000,800000 old: write-back new: write-combining
  [    4.120181] mtrr: type mismatch for cf800000,400000 old: write-back new: write-combining
  [    4.120190] mtrr: type mismatch for cf800000,200000 old: write-back new: write-combining
  [    4.120200] mtrr: type mismatch for cf800000,100000 old: write-back new: write-combining
  [    4.120209] mtrr: type mismatch for cf800000,80000 old: write-back new: write-combining
  [    4.120219] mtrr: type mismatch for cf800000,40000 old: write-back new: write-combining
  [    4.120229] mtrr: type mismatch for cf800000,20000 old: write-back new: write-combining
  [    4.120238] mtrr: type mismatch for cf800000,10000 old: write-back new: write-combining
  [    4.120248] mtrr: type mismatch for cf800000,8000 old: write-back new: write-combining
  [    4.120258] mtrr: type mismatch for cf800000,4000 old: write-back new: write-combining
  [    4.120268] mtrr: type mismatch for cf800000,2000 old: write-back new: write-combining
  [    4.120277] mtrr: type mismatch for cf800000,1000 old: write-back new: write-combining
  [    4.123614] vesafb: framebuffer at 0xcf800000, mapped to 0xffffc90005280000, using 5120k, total 5120k
  [    4.124230] Console: switching to colour frame buffer device 160x64
  [    4.136920] fb0: VESA VGA frame buffer device
  [    6.742179] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
  ...

  You can also see a bunch of mtrr errors/warnings with both 3.2.0 and
  3.8.0. On the system with 3.2.0 I get:

  $ cat /proc/mtrr
  reg00: base=0x000000000 (    0MB), size= 2048MB, count=1: write-back
  reg01: base=0x080000000 ( 2048MB), size= 1024MB, count=1: write-back
  reg02: base=0x0c0000000 ( 3072MB), size=  256MB, count=1: write-back
  reg03: base=0x0cf000000 ( 3312MB), size=   16MB, count=1: uncachable
  reg04: base=0x100000000 ( 4096MB), size= 1024MB, count=1: write-back
  reg05: base=0x0ffe00000 ( 4094MB), size=    2MB, count=1: write-protect

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image 3.2.0.60.71
  ProcVersionSignature: Ubuntu 3.2.0-60.91-generic 3.2.55
  Uname: Linux 3.2.0-60-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Card0.Amixer.info: Error: [Errno 2] No such file or directory
  Card0.Amixer.values: Error: [Errno 2] No such file or directory
  CurrentDmesg:
   [    3.492025] microsoft 0003:045E:00DB.0001: input,hidraw0: USB HID v1.11 Keyboard [Microsoft Natural\xffffffc2\xffffffae\xffffffae Ergonomic Keyboard 4000] on usb-0000:00:1d.2-2/input0
   [    3.513028] input: Microsoft Natural\xffffffc2\xffffffae\xffffffae Ergonomic Keyboard 4000 as /devices/pci0000:00/0000:00:1d.2/usb4/4-2/4-2:1.1/input/input7
   [    3.513724] microsoft 0003:045E:00DB.0002: input,hidraw1: USB HID v1.11 Device [Microsoft Natural\xffffffc2\xffffffae\xffffffae Ergonomic Keyboard 4000] on usb-0000:00:1d.2-2/input1
   [   17.365539] eth0: no IPv6 routers present
   [   35.750320] init: tty1 main process ended, respawning
  Date: Tue Mar 11 12:11:07 2014
  HibernationDevice: RESUME=UUID=49941bff-9ed6-405b-bf74-ee11e4b398fa
  InstallationMedia: Ubuntu-Server 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.2)
  IwConfig:
   lo        no wireless extensions.
   
   eth1      no wireless extensions.
   
   eth0      no wireless extensions.
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=linux
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-60-generic root=UUID=7c5bf3fa-5ac8-4f74-b2bc-a97e831d6815 ro
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-60-generic N/A
   linux-backports-modules-3.2.0-60-generic  N/A
   linux-firmware                            1.79.10
  RfKill: Error: [Errno 2] No such file or directory
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/18/2013
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: MUCDT10N.86A.0076.2013.0618.1644
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: D2700MUD
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG32419-504
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorp.:bvrMUCDT10N.86A.0076.2013.0618.1644:bd06/18/2013:svn:pn:pvr:rvnIntelCorporation:rnD2700MUD:rvrAAG32419-504:cvn:ct3:cvr:

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References

[Bug 1290832] [NEW] No console display on D2xxx/N2xxx integrated graphics with raring enablement stack
From: Brian Candler, 2014-03-11