kernel: [drm:radeon_cp_init_kms] *ERROR* invalid ioctl with kms radeon_cp_init_kms

[Robert2]

Since the last batch of xorg-server updates, X has been broken on my ThinkPad T41 with Radeon RV250. The machine boots fine up to when GDM is supposed to take over, then I get the invalid ioctl messages and as a result GDM fails to start because there is no X server

I have been trying to pull updates from koji in the hope that the issue would get fixed, but it has now been like this for more then a week and I have not seen any similar bug reports. Here is what the system has currently

kernel-2.6.31-0.86.rc3.git5.fc12.i686
xorg-x11-server-Xorg-1.6.99-14.20090715.fc12.i586
xorg-x11-drv-ati-6.12.2-19.fc12.1.i586
libdrm-2.4.12-0.2.fc12.i586

Here is part of my syslog, filtered down to only the messages related to video

Jul 21 09:09:40 t41 kernel: [drm] Initialized drm 1.1.0 20060810
Jul 21 09:09:40 t41 kernel: modprobe used greatest stack depth: 6704 bytes left
Jul 21 09:09:40 t41 kernel: [drm] radeon default to kernel modesetting.
Jul 21 09:09:40 t41 kernel: [drm] radeon kernel modesetting enabled.
Jul 21 09:09:40 t41 kernel: radeon 0000:01:00.0: power state changed by ACPI to D0
Jul 21 09:09:40 t41 kernel: radeon 0000:01:00.0: PCI INT A -> Link[LNKA] -> GSI 11 (level, low) -> IRQ 11
Jul 21 09:09:40 t41 kernel: [drm] radeon: Initializing kernel modesetting.
Jul 21 09:09:40 t41 kernel: [drm] register mmio base: 0xC0100000
Jul 21 09:09:40 t41 kernel: [drm] register mmio size: 65536
Jul 21 09:09:40 t41 kernel: [drm] GPU reset succeed (RBBM_STATUS=0x00000140)
Jul 21 09:09:40 t41 kernel: [drm] Detected VRAM RAM=32M, BAR=32M
Jul 21 09:09:40 t41 kernel: [drm] RAM width 64bits DDR
Jul 21 09:09:40 t41 kernel: [drm] Clocks initialized !
Jul 21 09:09:40 t41 kernel: agpgart-intel 0000:00:00.0: AGP 2.0 bridge
Jul 21 09:09:40 t41 kernel: agpgart-intel 0000:00:00.0: putting AGP V2 device into 4x mode
Jul 21 09:09:40 t41 kernel: radeon 0000:01:00.0: putting AGP V2 device into 4x mode
Jul 21 09:09:40 t41 kernel: [drm] radeon: VRAM 32M
Jul 21 09:09:40 t41 kernel: [drm] radeon: VRAM from 0x00000000 to 0x01FFFFFF
Jul 21 09:09:40 t41 kernel: [drm] radeon: GTT 256M
Jul 21 09:09:40 t41 kernel: [drm] radeon: GTT from 0xD0000000 to 0xDFFFFFFF
Jul 21 09:09:40 t41 kernel: [drm] radeon: irq initialized.
Jul 21 09:09:40 t41 kernel: [TTM] TTM available graphics memory: 995 MiB
Jul 21 09:09:40 t41 kernel: [TTM] TTM available object memory: 414 MiB
Jul 21 09:09:40 t41 kernel: [drm] radeon: 32M of VRAM memory ready
Jul 21 09:09:40 t41 kernel: [drm] radeon: 256M of GTT memory ready.
Jul 21 09:09:40 t41 kernel: [drm] radeon: cp idle (0x02000603)
Jul 21 09:09:40 t41 kernel: [drm] Loading R200 Microcode
Jul 21 09:09:40 t41 kernel: [drm] radeon: ring at 0x00000000D0000000
Jul 21 09:09:40 t41 kernel: [drm] ring test succeeded in 1 usecs
Jul 21 09:09:40 t41 kernel: [drm] radeon: ib pool ready.
Jul 21 09:09:40 t41 kernel: [drm] ib test succeeded in 0 usecs
Jul 21 09:09:40 t41 kernel: [drm] DFP table revision: 3
Jul 21 09:09:40 t41 kernel: [drm] Panel ID String: SXGA+ Single (85MHz)
Jul 21 09:09:40 t41 kernel: [drm] Panel Size 1400x1050
Jul 21 09:09:40 t41 kernel: [drm] Default TV standard: NTSC
Jul 21 09:09:40 t41 kernel: [drm] 27.000000000 MHz TV ref clk
Jul 21 09:09:40 t41 kernel: [drm] Radeon Display Connectors
Jul 21 09:09:40 t41 kernel: [drm] Connector 0:
Jul 21 09:09:40 t41 kernel: [drm]   VGA
Jul 21 09:09:40 t41 kernel: [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
Jul 21 09:09:40 t41 kernel: [drm]   Encoders:
Jul 21 09:09:40 t41 kernel: [drm]     CRT1: INTERNAL_DAC1
Jul 21 09:09:40 t41 kernel: [drm] Connector 1:
Jul 21 09:09:40 t41 kernel: [drm]   DVI-D
Jul 21 09:09:40 t41 kernel: [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
Jul 21 09:09:40 t41 kernel: [drm]   Encoders:
Jul 21 09:09:40 t41 kernel: [drm]     DFP1: INTERNAL_TMDS1
Jul 21 09:09:40 t41 kernel: [drm] Connector 2:
Jul 21 09:09:40 t41 kernel: [drm]   LVDS
Jul 21 09:09:40 t41 kernel: [drm]   Encoders:
Jul 21 09:09:40 t41 kernel: [drm]     LCD1: INTERNAL_LVDS
Jul 21 09:09:40 t41 kernel: i2c-adapter i2c-0: unable to read EDID block.
Jul 21 09:09:40 t41 kernel: radeon 0000:01:00.0: VGA-1: no EDID data
Jul 21 09:09:40 t41 kernel: i2c-adapter i2c-1: unable to read EDID block.
Jul 21 09:09:40 t41 kernel: radeon 0000:01:00.0: DVI-D-1: no EDID data
Jul 21 09:09:40 t41 kernel: [drm] fb mappable at 0xE0040000
Jul 21 09:09:40 t41 kernel: [drm] vram apper at 0xE0000000
Jul 21 09:09:40 t41 kernel: [drm] size 5913600
Jul 21 09:09:40 t41 kernel: [drm] fb depth is 24
Jul 21 09:09:40 t41 kernel: [drm]    pitch is 5632
Jul 21 09:09:40 t41 kernel: fbcon: radeondrmfb (fb0) is primary device
Jul 21 09:09:40 t41 kernel: Console: switching to colour frame buffer device 175x65
Jul 21 09:09:40 t41 kernel: [drm] LVDS-9: set mode 1400x1050 e
Jul 21 09:09:40 t41 kernel: fb0: radeondrmfb frame buffer device
Jul 21 09:09:40 t41 kernel: registered panic notifier
Jul 21 09:09:40 t41 kernel: [drm] radeon: kernel modesetting successfully initialized.
Jul 21 09:09:40 t41 kernel: [drm] Initialized radeon 2.0.0 20080528 for 0000:01:00.0 on minor 0
Jul 21 09:09:40 t41 kernel: modprobe used greatest stack depth: 4680 bytes left
Jul 21 09:09:40 t41 kernel: input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A03:00/device:02/device:03/input/input8
Jul 21 09:09:40 t41 kernel: ACPI: Video Device [VID] (multi-head: yes  rom: no  post: no)
Jul 21 09:09:56 t41 kernel: [drm:radeon_cp_init_kms] *ERROR* invalid ioctl with kms radeon_cp_init_kms
Jul 21 09:09:56 t41 kernel: [drm:radeon_cp_init_kms] *ERROR* invalid ioctl with kms radeon_cp_init_kms
Jul 21 09:09:56 t41 gdm-binary[1212]: WARNING: GdmDisplay: display lasted 1.388139 seconds
Jul 21 09:09:56 t41 kernel: [drm:radeon_cp_init_kms] *ERROR* invalid ioctl with kms radeon_cp_init_kms
Jul 21 09:09:56 t41 kernel: [drm:radeon_cp_init_kms] *ERROR* invalid ioctl with kms radeon_cp_init_kms
Jul 21 09:09:56 t41 gdm-binary[1212]: WARNING: GdmDisplay: display lasted 0.432959 seconds

*cut*

Jul 21 09:10:20 t41 init: prefdm main process (1660) terminated with status 1
Jul 21 09:10:20 t41 init: prefdm main process ended, respawning
Jul 21 09:10:20 t41 init: prefdm respawning too fast, stopped

[Robert2]

https://bugzilla.redhat.com/show_bug.cgi?id=512757

[AdamW]

try with the 'nomodeset' kernel parameter and see if it changes things?

[Robert2]

nomodeset does not work, as is also mentioned in the bugzilla report, it is being ignored with the 2.6.31 kernel (another bug).

Instead use radeon.modeset=0 which does work, and causes X to start again.