Bug#433236: Subject: linux-image-2.6.21-2-powerpc: radeonfb broken with Apple Cinema Display, connected via DVI
Hi,
I can confirm this bug. I have also a Mac Mini G4/1.5GHz with a 20"
Apple Cinema Display (DVI model), and the kernel starts fine but the
monitor switches off in the early phase of the boot process.
Otherwise, it is fine, and I can connect through ssh to the machine, or
login blindly.
Here are some parts of the dmesg log that could be relevant:
Kernel command line: root=/dev/hda3 ro
mpic: Setting up MPIC " MPIC 1 " version 1.2 at 80040000, max 4 CPUs
mpic: ISU size: 64, shift: 6, mask: 3f
mpic: Initializing for 64 sources
PID hash table entries: 2048 (order: 11, 8192 bytes)
GMT Delta read from XPRAM: 0 minutes, DST: off
time_init: decrementer frequency = 41.600571 MHz
time_init: processor frequency = 1499.999994 MHz
Console: colour dummy device 80x25
serial8250_console_init: nothing to do on PowerMac
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
High memory: 0k
Memory: 508288k/524288k available (3272k kernel code, 15512k reserved,
124k data, 189k bss, 188k init)
Calibrating delay loop... 82.94 BogoMIPS (lpj=165888)
Security Framework v1.0.0 initialized
SELinux: Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512
device-tree: Duplicate name in /cpus/PowerPC,G4@0, renamed to "l2-cache#1"
NET: Registered protocol family 16
KeyWest i2c @0xf8001003 irq 42 /uni-n@f8000000/i2c@f8001000
channel 0 bus <multibus>
channel 1 bus <multibus>
KeyWest i2c @0x80018000 irq 26 /pci@f2000000/mac-io@17/i2c@18000
channel 0 bus <multibus>
PMU i2c /pci@f2000000/mac-io@17/via-pmu@16000/pmu-i2c
channel 1 bus <multibus>
channel 2 bus <multibus>
...
PCI: Enabling device 0000:00:10.0 (0006 -> 0007)
radeonfb (0000:00:10.0): Invalid ROM signature 0 should be 0xaa55
radeonfb: Retrieved PLL infos from Open Firmware
radeonfb: Reference=27.00 MHz (RefDiv=12) Memory=190.00 Mhz,
System=250.00 MHz
radeonfb: PLL min 12000 max 35000
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: Monitor 1 type DFP found
radeonfb: EDID probed
radeonfb: Monitor 2 type DFP found
radeonfb: EDID probed
Console: switching to colour frame buffer device 210x65
radeonfb (0000:00:10.0): ATI Radeon Yb
Generic RTC Driver v1.07
Macintosh non-volatile memory driver v1.1
serial8250_init: nothing to do on PowerMac
pmac_zilog: 0.6 (Benjamin Herrenschmidt <benh@kernel.crashing.org>)
ttyS0 at MMIO 0x80013020 (irq = 22) is a Z85c30 ESCC - Serial port
ttyS1 at MMIO 0x80013000 (irq = 23) is a Z85c30 ESCC - Serial port
...
PowerMac i2c bus pmu 2 registered
PowerMac i2c bus pmu 1 registered
PowerMac i2c bus mac-io 0 registered
PowerMac i2c bus uni-n 1 registered
PowerMac i2c bus uni-n 0 registered
...
[drm] Initialized drm 1.1.0 20060810
[drm] Initialized radeon 1.25.0 20060524 on minor 0
agpgart: Putting AGP V2 device at 0000:00:0b.0 into 4x mode
agpgart: Putting AGP V2 device at 0000:00:10.0 into 4x mode
[drm] Setting GART location based on new memory map
[drm] Loading R200 Microcode
[drm] writeback test succeeded in 1 usecs
~$ cat /proc/cpuinfo
processor : 0
cpu : 7447A, altivec supported
clock : 1499.999994MHz
revision : 0.5 (pvr 8003 0105)
bogomips : 82.94
timebase : 41600571
platform : PowerMac
machine : PowerMac10,2
motherboard : PowerMac10,2 MacRISC3 Power Macintosh
detected as : 287 (Unknown Intrepid-based)
pmac flags : 00000000
L2 cache : 512K unified
pmac-generation : NewWorld
~$ cat /proc/version
Linux version 2.6.21-2-powerpc (Debian 2.6.21-6) (waldi@debian.org) (gcc
version 4.1.3 20070629 (prerelease) (Debian 4.1.2-13)) #1 Tue Jul 10
19:09:48 CEST 2007
~$ cat /proc/dri/0/name
radeon 0000:00:10.0 pci:0000:00:10.0
And from /var/log/Xorg.0.log
...
(II) RADEON(0): Page flipping enabled
(II) RADEON(0): Will try to use DMA for Xv image transfers
(II) RADEON(0): Generation 2 PCI interface, using max accessible memory
(II) RADEON(0): Detected total video RAM=65536K, accessible=131072K (PCI
BAR=131072K)
(--) RADEON(0): Mapped VideoRAM: 65536 kByte (64 bit DDR SDRAM)
(II) RADEON(0): Color tiling enabled by default
(II) Loading sub module "ddc"
(II) LoadModule: "ddc"(II) Module already built-in
(II) Loading sub module "i2c"
(II) LoadModule: "i2c"(II) Module already built-in
(II) RADEON(0): I2C bus "DDC" initialized.
(II) Attempted to read BIOS 64KB from
/sys/bus/pci/devices/0000:00:10.0/rom: got 0KB
(WW) RADEON(0): Video BIOS not detected in PCI space!
(WW) RADEON(0): Attempting to read Video BIOS from legacy ISA space!
(WW) RADEON(0): Unrecognized BIOS signature, BIOS data will not be used
(**) RADEON(0): MonitorLayout Option:
Monitor1--Type TMDS, Monitor2--Type NONE
(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): DDC Type: 3, Detected Type: 0
(II) RADEON(0):
(II) RADEON(0): Primary:
Monitor -- TMDS
Connector -- DVI-D
DAC Type -- TVDAC/ExtDAC
TMDS Type -- Internal
DDC Type -- VGA_DDC
(II) RADEON(0): Secondary:
Monitor -- NONE
Connector -- VGA
DAC Type -- Primary
TMDS Type -- External
DDC Type -- DVI_DDC
(WW) RADEON(0): Video BIOS not detected, using default clock settings!
(II) RADEON(0): Probed PLL values: xtal: 27.000000 Mhz, sclk: 249.750000
Mhz, mclk: 189.000000 Mhz
(WW) RADEON(0): Failed to detect secondary monitor, MergedFB/Clone mode
disabled
(==) RADEON(0): Using gamma correction (1.0, 1.0, 1.0)
(II) RADEON(0): Validating modes on Primary head ---------
(**) RADEON(0): Panel size is forced to: 1680x1050
(II) RADEON(0): Total number of valid DDC mode(s) found: 0
(II) RADEON(0): Valid mode using on-chip RMX: 1680x1050
(II) RADEON(0): Total number of valid FP mode(s) found: 1
(--) RADEON(0): Virtual size is 1680x1050 (pitch 1728)
...
'Hope this helps.
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