linux-kernel - 2.6.33-rc3 -- Intel 945GME (inteldrmfb) -- Two Tux images displayed are side by side (should only show one).

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Message-ID: <a44ae5cd1001060916s4db1d94fsb7e012ab80ce6add@mail.gmail.com>
Date:	Wed, 6 Jan 2010 12:16:37 -0500
From:	Miles Lane <miles.lane@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>,
	David Airlie <airlied@...ux.ie>,
	Sylvain Meyer <sylvain.meyer@...ldonline.fr>,
	linux-fbdev@...r.kernel.org
Subject: 2.6.33-rc3 -- Intel 945GME (inteldrmfb) -- Two Tux images displayed 
	are side by side (should only show one).

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.

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- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Region 0: Memory at f7f80000 (32-bit, non-prefetchable) [size=512K]
	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_SIZE=128
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_CLUT224=y
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