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SubjectRe: Linux 2.6.3-rc3
From
Date
Linus Torvalds <torvalds@osdl.org> writes:

> Benjamin Herrenschmidt:
> o New radeonfb
> o Fix a link conflict between radeonfb and the radeon DRI
> o Fix incorrect kfree in radeonfb

It doesn't seem to work on my x86 laptop. The screen goes black when
the framebuffer is enabled early in the boot sequence. The machine
boots normally anyway and I can log in from the network or log in
blindly at the console. I can then start the X server which appears to
work correctly, but switching back to a console still gives me a black
screen. Running "setfont" doesn't fix it. Here is what dmesg reports
when running 2.6.3-rc3:

$ cat 263r3.dmesg | egrep -A 1 'Console:|radeon'
Console: colour VGA+ 80x25
Memory: 254460k/261632k available (2532k kernel code, 6388k reserved, 879k data, 148k init, 0k highmem)
--
radeonfb: Invalid ROM signature 0 should be 0xaa55
radeonfb: Retreived PLL infos from BIOS
radeonfb: Reference=27.00 MHz (RefDiv=12) Memory=250.00 Mhz, System=183.00 MHz
Non-DDC laptop panel detected
radeonfb: Monitor 1 type LCD found
radeonfb: Monitor 2 type no found
radeonfb: panel ID string: Samsung LTN150P1-L02
radeonfb: detected LVDS panel size from BIOS: 1400x1050
radeondb: BIOS provided dividers will be used
radeonfb: Power Management enabled for Mobility chipsets
radeonfb: ATI Radeon LW DDR SGRAM 64 MB
SBF: Simple Boot Flag extension found and enabled.
--
Console: switching to colour frame buffer device 175x65
pty: 1024 Unix98 ptys configured
--
Console: switching to colour frame buffer device 175x65
input: PC Speaker

The same configuration works correctly using 2.6.3-rc2 and dmesg
reports:

$ cat 263r2.dmesg | egrep -A 1 'Console:|radeon'
Console: colour VGA+ 80x25
Memory: 254544k/261632k available (2457k kernel code, 6304k reserved, 878k data, 144k init, 0k highmem)
--
radeonfb_pci_register BEGIN
radeonfb: ref_clk=2700, ref_div=12, xclk=18300 from BIOS
radeonfb: probed DDR SGRAM 65536k videoram
radeon_get_moninfo: bios 4 scratch = 1000004
radeonfb: panel ID string: Samsung LTN150P1-L02
radeonfb: detected DFP panel size from BIOS: 1400x1050
radeonfb: ATI Radeon M7 LW DDR SGRAM 64 MB
radeonfb: DVI port LCD monitor connected
radeonfb: CRT port no monitor connected
radeonfb_pci_register END
SBF: Simple Boot Flag extension found and enabled.
--
Console: switching to colour frame buffer device 175x65
pty: 1024 Unix98 ptys configured
--
Console: switching to colour frame buffer device 175x65
input: PC Speaker

The FB related parts of my .config look like this:

$ cat .config | egrep '_FB_|_CONSOLE|_FONT|_VIDEO' | egrep -v '^#'
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VIDEO_DEV=m
CONFIG_VIDEO_SELECT=y
CONFIG_FB_RADEON=y
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_PCI_CONSOLE=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y

--
Peter Osterlund - petero2@telia.com
http://w1.894.telia.com/~u89404340
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