On Wed, 06 January 2010 Miles Lane [off-list ref] wrote:

For a long time I have gotten two pictures of Tux showing up when I
include the Tux display option in my custom kernel builds.  I don't
know how many kernel revisions ago it was when I started noticing
this.  It seems like it might have been early in the 2.6 series
kernels.

Unless your system has exactly one CPU without hyperthreading and with
exactly one core this is the correct bahavior, one tux per logical CPU.

If you just want a single tux you can run your kernel on a system with
only one logical CPU, boot it with maxcpus=1 or rebuild it with
CONFIG_SMP=n... though in those case you will not be able to benefit
from all of your CPU's resources..

Bruno

dmesg:

Linux agpgart interface v0.103
agpgart-intel 0000:00:00.0: Intel 945GME Chipset
agpgart-intel 0000:00:00.0: detected 7932K stolen memory
agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xd0000000
[drm] Initialized drm 1.1.0 20060810
i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
i915 0000:00:02.0: setting latency timer to 64
[drm] set up 7M of stolen space
integrated sync not supported
ACPI: Battery Slot [BAT0] (battery present)
[drm] initialized overlay support
[drm] LVDS-8: set mode 1024x600 27
Console: switching to colour frame buffer device 128x37
fb0: inteldrmfb frame buffer device
registered panic notifier
[drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0

# lspci -vvxxx -s 2.1

00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME,
943/940GML Express Integrated Graphics Controller (rev 03)
	Subsystem: ASUSTeK Computer Inc. Device 8340
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSELúst >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Region 0: Memory at f7f80000 (32-bit, non-prefetchable)
[sizeQ2K] Capabilities: [d0] Power Management version 2
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0
DScale=0 PME- 00: 86 80 a6 27 07 00 90 00 03 00 80 03 00 00 80 00
10: 00 00 f8 f7 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 43 10 40 83
30: 00 00 00 00 d0 00 00 00 00 00 00 00 00 00 00 00
40: 00 00 00 00 48 00 00 00 09 00 09 71 23 25 4a a1
50: 0e 00 30 00 1b 00 00 00 00 00 00 00 00 00 80 7f
60: 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 01 00 22 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 88 40 64 34 10 00 00 00 86 0f 05 00 00 00 00 00

From .config:

# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_INTEL=y
CONFIG_VGA_ARB=y
CONFIG_DRM=y
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_I915=y
CONFIG_DRM_I915_KMS=y
CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

# Frame buffer hardware drivers
#
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=y
CONFIG_LCD_PLATFORM=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y

# Display device support
#
CONFIG_DISPLAY_SUPPORT=y

# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE8
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_CLUT224=y