[ltp] Ati radeon issues on startup

[linux-thinkpad@linux-thinkpad.org]

Hi,

I have compiled my own 2.6.24.2 kernel with some thinkpad specific patches. Problem is during booting I see nothing or garbage. Once xserver starts up everything is fine. (even terminal mode if I don't use the vga option as kernel option)  

I have a T42 with a 1024x768 internal lcd and a Radeon Mobility M7 LW [Radeon Mobility 7500]

The boot option are set to vga=791 splash=silent 
Removing these options results in similar garbage.

dmesg reports this:

radeonfb_pci_register BEGIN
ACPI: PCI Interrupt 0000:01:00.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
radeonfb (0000:01:00.0): Found 32768k of DDR 64 bits wide videoram
radeonfb (0000:01:00.0): mapped 16384k videoram
radeonfb: Retrieved PLL infos from BIOS
radeonfb: Reference=27.00 MHz (RefDiv=12) Memory=260.00 Mhz, System=183.00 MHz
radeonfb: PLL min 12000 max 35000
1 chips in connector info
 - chip 1 has 2 connectors
  * connector 0 of type 2 (CRT) : 2300
  * connector 1 of type 4 (DVI-D) : 4201
Starting monitor auto detection...
radeonfb: I2C (port 1) ... not found
i2c-adapter i2c-1: unable to read EDID block.
i2c-adapter i2c-1: unable to read EDID block.
i2c-adapter i2c-1: unable to read EDID block.
radeonfb: I2C (port 2) ... not found
i2c-adapter i2c-2: unable to read EDID block.
i2c-adapter i2c-2: unable to read EDID block.
i2c-adapter i2c-2: unable to read EDID block.
radeonfb: I2C (port 3) ... not found
i2c-adapter i2c-3: unable to read EDID block.
i2c-adapter i2c-3: unable to read EDID block.
i2c-adapter i2c-3: unable to read EDID block.
radeonfb: I2C (port 4) ... not found
i2c-adapter i2c-1: unable to read EDID block.
i2c-adapter i2c-1: unable to read EDID block.
i2c-adapter i2c-1: unable to read EDID block.
radeonfb: I2C (port 2) ... not found
i2c-adapter i2c-3: unable to read EDID block.
i2c-adapter i2c-3: unable to read EDID block.
i2c-adapter i2c-3: unable to read EDID block.
radeonfb: I2C (port 4) ... not found
Non-DDC laptop panel detected
i2c-adapter i2c-2: unable to read EDID block.
i2c-adapter i2c-2: unable to read EDID block.
i2c-adapter i2c-2: unable to read EDID block.
radeonfb: I2C (port 3) ... not found
i2c-adapter i2c-3: unable to read EDID block.
i2c-adapter i2c-3: unable to read EDID block.
i2c-adapter i2c-3: unable to read EDID block.
radeonfb: I2C (port 4) ... not found
radeonfb: Monitor 1 type LCD found
radeonfb: Monitor 2 type no found
radeonfb: panel ID string: 1024x768
radeonfb: detected LVDS panel size from BIOS: 1024x768
BIOS provided panel power delay: 1000
radeondb: BIOS provided dividers will be used
ref_divider = 6
post_divider = 2
fbk_divider = 3a
Scanning BIOS table ...
 320 x 350
 320 x 400
 320 x 400
 320 x 480
 400 x 600
 512 x 384
 640 x 350
 640 x 400
 640 x 475
 640 x 480
 720 x 480
 720 x 576
 800 x 600
 848 x 480
 1024 x 768
Found panel in BIOS table:
  hblank: 320
  hOver_plus: 16
  hSync_width: 136
  vblank: 38
  vOver_plus: 2
  vSync_width: 6
  clock: 6500
Setting up default mode based on panel info
radeonfb: Dynamic Clock Power Management enabled
radeonfb: IBM Thinkpad R51/T40/T41/T42 detected, enabling workaround
radeonfb (0000:01:00.0): ATI Radeon LW
radeonfb_pci_register END

which looks good to me.


kernel config snippet: (hope I got all relevant parts)

#
# Graphics support
#
CONFIG_AGP=m

CONFIG_AGP_ATI=m
CONFIG_AGP_INTEL=m
CONFIG_DRM=m
CONFIG_DRM_RADEON=m
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_DDC=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
CONFIG_FB_RADEON=y
CONFIG_FB_RADEON_I2C=y
CONFIG_FB_RADEON_BACKLIGHT=y
CONFIG_FB_RADEON_DEBUG=y
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_CORGI=m
CONFIG_BACKLIGHT_PROGEAR=m

#
# Display device support
#
CONFIG_DISPLAY_SUPPORT=m

#
# Display hardware drivers
#

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_VIDEO_SELECT=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=m
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
CONFIG_FONT_8x16=y
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
CONFIG_FONT_SUN8x16=y
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_CLUT224=y

Can somebody give me a pointer whats wrong ? How can I get a decent resolution ? 

Cheers

Marcel
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