[gentoo-user] No HW acceleraton on radeon Mobility X300 with linux-2.6.36-r5, mesa-7.9, xorg-server-1.9.2 and video-ati-6.13.2

[Daniel Tihelka]

Hallo,

after update to 2.6.36-r5 kernel, xorg 1.9.2, mesa-7.9 and xf86-video-
ati-6.13.2 (all from gentoo portage), the hw graphics acceleration stopped
working. The problem seems to be in drm kernel module, as it is claimed by
X.org (the part of X.org log):

...
[    28.502] (II) Loading /usr/lib/xorg/modules/drivers/radeon_drv.so
[    28.569] (II) Module radeon: vendor="X.Org Foundation"
[    28.572]    compiled for 1.9.2, module version = 6.13.2
[    28.572]    Module class: X.Org Video Driver
[    28.572]    ABI class: X.Org Video Driver, version 8.0
[    28.582] (II) RADEON: Driver for ATI Radeon chipsets:
...
[    28.601] (II) [KMS] drm report modesetting isn't supported.
[    28.601] (II) RADEON(0): TOTO SAYS 00000000b0100000
[    28.601] (II) RADEON(0): MMIO registers at 0x00000000b0100000: size 64KB
[    28.601] (II) RADEON(0): PCI bus 1 card 0 func 0
[    28.601] (**) RADEON(0): Depth 24, (--) framebuffer bpp 32
[    28.601] (II) RADEON(0): Pixel depth = 24 bits stored in 4 bytes (32 bpp
pixmaps)
[    28.601] (==) RADEON(0): Default visual is TrueColor
[    28.601] (II) Loading sub module "vgahw"
[    28.601] (II) LoadModule: "vgahw"
[    28.602] (II) Loading /usr/lib/xorg/modules/libvgahw.so
[    28.627] (II) Module vgahw: vendor="X.Org Foundation"
[    28.627]    compiled for 1.9.2, module version = 0.1.0
[    28.627]    ABI class: X.Org Video Driver, version 8.0
[    28.627] (II) RADEON(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp-
>PIOOffset is 0x0000
[    28.628] (==) RADEON(0): RGB weight 888
[    28.628] (II) RADEON(0): Using 8 bits per RGB (8 bit DAC)
[    28.628] (--) RADEON(0): Chipset: "ATI Radeon Mobility X300 (M22) 5460
(PCIE)" (ChipID = 0x5460)
[    28.628] (--) RADEON(0): Linear framebuffer at 0x00000000c0000000
[    28.628] (II) RADEON(0): PCIE card detected
[    28.628] (II) Loading sub module "int10"
[    28.628] (II) LoadModule: "int10"
[    28.628] (II) Loading /usr/lib/xorg/modules/libint10.so
[    28.665] (II) Module int10: vendor="X.Org Foundation"
[    28.665]    compiled for 1.9.2, module version = 1.0.0
[    28.665]    ABI class: X.Org Video Driver, version 8.0
[    28.665] (II) RADEON(0): initializing int10
[    28.665] (II) RADEON(0): Primary V_BIOS segment is: 0xc000
[    28.666] (II) RADEON(0): Legacy BIOS detected
[    28.667] drmOpenDevice: node name is /dev/dri/card0
[    28.699] [drm] failed to load kernel module "radeon"
[    28.699] (EE) RADEON(0): [dri] RADEONDRIGetVersion failed to open the DRM
[dri] Disabling DRI.
[    28.699] (II) RADEON(0): Generation 2 PCI interface, using max accessible
memory
...


I have searched for more information about the problem, but all advices
pointed to drm and radeon kernel modules missing in the kernel. This is,
however, not my case, as I have compiled them in:

# cat /usr/src/linux/.config | grep DRM
CONFIG_DRM=y
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_TTM=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
CONFIG_DRM_RADEON=y
CONFIG_DRM_RADEON_KMS=y
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set

And the kernel seems to use them (when started with boot options
'video=vesafb:ywrap,mtrr:3 vga=792'):

#dmesg | grep drm
[drm] Initialized drm 1.1.0 20060810
[drm] radeon defaulting to kernel modesetting.
[drm] radeon kernel modesetting enabled.

Well, that is everything printed about drm, not mentioning  particular video
card ... Pay also attention to kernel claiming that modesetting is enabled,
but X.org claiming that it is not in line [KMS] drm report modesetting isn't
supported.
As a result, the gallium renders through softpipe (no visual effects in KDE,
and KDE opengl screensaver being incredibly slow ...):

# glxinfo
name of display: :0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: SGI
server glx version string: 1.4
server glx extensions:
    GLX_ARB_multisample, GLX_EXT_visual_info, GLX_EXT_visual_rating,
    GLX_EXT_import_context, GLX_EXT_texture_from_pixmap, GLX_OML_swap_method,
    GLX_SGI_make_current_read, GLX_SGIS_multisample, GLX_SGIX_hyperpipe,
    GLX_SGIX_swap_barrier, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
    GLX_MESA_copy_sub_buffer, GLX_INTEL_swap_event
client glx vendor string: Mesa Project and SGI
client glx version string: 1.4
client glx extensions:
    GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer,
    GLX_MESA_swap_control, GLX_OML_swap_method, GLX_OML_sync_control,
    GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync,
    GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
    GLX_SGIX_visual_select_group, GLX_EXT_texture_from_pixmap,
    GLX_INTEL_swap_event
GLX version: 1.4
GLX extensions:
    GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_OML_swap_method,
    GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
    GLX_INTEL_swap_event
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: Gallium 0.4 on softpipe
OpenGL version string: 2.1 Mesa 7.9
OpenGL shading language version string: 1.20
OpenGL extensions:


So, did I miss anything when configuring the kernel? I is really beyond my
knowledge, so any help is very much appreciated. I thought about video card
firmware not loaded properly, but I don't know haw to check it. I is worth
mentioning that framebuffer works without problems during boot.

Comparing the output from 'dmesg' with kernel 2.6.34 running on another
computer (otherwise the same X, mesa and ati driver), where the graphics seems
to be accelerated properly, that the kernel 'radeon' drover might not be
initialized properly. There is the output from the working installation:

#dmesg | grep drm
[drm] Initialized drm 1.1.0 20060810
[drm] radeon defaulting to kernel modesetting.
[drm] radeon kernel modesetting enabled.
[drm] initializing kernel modesetting (RV515 0x1002:0x7183).
[drm] register mmio base: 0xFDDF0000
[drm] register mmio size: 65536
[drm] GPU reset succeed (RBBM_STATUS=0x10000140)
[drm] 1 Power State(s)
[drm] State 0 Default (default)
[drm]   0 PCIE Lanes
[drm]   1 Clock Mode(s)
[drm]           0 engine/memory: 600000/400000
[drm] radeon: power management initialized
[drm] Generation 2 PCI interface, using max accessible memory
[drm] radeon: using MSI.
[drm] radeon: irq initialized.
[drm] Detected VRAM RAM=256M, BAR=256M
[drm] RAM width 128bits DDR
[drm] radeon: 256M of VRAM memory ready
[drm] radeon: 512M of GTT memory ready.
[drm] GART: num cpu pages 131072, num gpu pages 131072
[drm] RB2D reset succeed (RBBM_STATUS=0x10000140)
[drm] radeon: 1 quad pipes, 1 z pipes initialized.
[drm] PCIE GART of 512M enabled (table at 0x00040000).
[drm] radeon: cp idle (0x10000C03)
[drm] Loading R500 Microcode
[drm] radeon: ring at 0x0000000010000000
[drm] ring test succeeded in 8 usecs
[drm] radeon: ib pool ready.
[drm] ib test succeeded in 0 usecs
[drm] Default TV standard: NTSC
[drm] Default TV standard: NTSC
[drm] Default TV standard: NTSC
[drm] Radeon Display Connectors
[drm] Connector 0:
[drm]   DVI-I
[drm]   HPD1
[drm]   DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c
[drm]   Encoders:
[drm]     CRT1: INTERNAL_KLDSCP_DAC1
[drm]     DFP1: INTERNAL_KLDSCP_TMDS1
[drm] Connector 1:
[drm]   S-video
[drm]   Encoders:
[drm]     TV1: INTERNAL_KLDSCP_DAC2
[drm] Connector 2:
[drm]   DVI-I
[drm]   HPD2
[drm]   DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58 0x7e5c 0x7e5c
[drm]   Encoders:
[drm]     CRT2: INTERNAL_KLDSCP_DAC2
[drm]     DFP3: INTERNAL_LVTM1
[drm] fb mappable at 0xD00C0000
[drm] vram apper at 0xD0000000
[drm] size 5242880
[drm] fb depth is 24
[drm]    pitch is 5120
fb: conflicting fb hw usage radeondrmfb vs VESA VGA - removing generic driver
fbcon: radeondrmfb (fb1) is primary device
fb1: radeondrmfb frame buffer device
[drm] Initialized radeon 2.3.0 20080528 for 0000:03:00.0 on minor 0

This is MUCH more information than the three lines reported by 2.6.36-r5. The
working 2.6.34 kernel was compiled from the following configuration:

# cat /usr/src/linux/.config | grep DRM
CONFIG_DRM=y
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_TTM=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
CONFIG_DRM_RADEON=y
CONFIG_DRM_RADEON_KMS=y
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_SIS is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set

which is actually equal to the 2.6.36-r5 kernel not working. The problem is
that I cannot simply move the configuration from one computer to another, as
they HW differs in many ways ...

Thank you very much. Best regards,
Dan T.