[Bug 28456] New: radeon dri detects different number of pipes each boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=28456

           Summary: radeon dri detects different number of pipes each boot
           Product: DRI
           Version: XOrg CVS
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: alexandre.nunes at gmail.com


Hi,

Whenever I boot my system, I get either:

a) 3 pipes reported by dri. System works fine, and flash plugin works very
fast.

b) 1 pipe reported by dri. System works fine, and flash plugin works very slow.

On the log I get:

[   45.553515] [drm] Initialized drm 1.1.0 20060810
[   45.717688] [drm] radeon kernel modesetting enabled.
[   45.723888] [drm] radeon: Initializing kernel modesetting.
[   45.729456] [drm] register mmio base: 0xC0100000
[   45.729462] [drm] register mmio size: 65536
[   45.729893] [drm] GPU reset succeed (RBBM_STATUS=0x00000140)
[   45.729914] [drm:rs400_gart_adjust_size] *ERROR* Forcing to 32M GART size
(because of ASIC bug ?)
[   45.730503] [drm] Generation 2 PCI interface, using max accessible memory
[   45.730509] [drm] radeon: VRAM 128M
[   45.730511] [drm] radeon: VRAM from 0x78000000 to 0x7FFFFFFF
[   45.730514] [drm] radeon: GTT 32M
[   45.730516] [drm] radeon: GTT from 0x80000000 to 0x81FFFFFF
[   45.730552] [drm] radeon: irq initialized.
[   45.730855] [drm] Detected VRAM RAM=128M, BAR=256M
[   45.730860] [drm] RAM width 128bits DDR
[   45.730992] [drm] radeon: 128M of VRAM memory ready
[   45.730995] [drm] radeon: 32M of GTT memory ready.
[   45.731018] [drm] GART: num cpu pages 8192, num gpu pages 8192
[   45.733319] [drm] radeon: 3 quad pipes, 1 z pipes initialized.
[   45.733342] [drm] radeon: cp idle (0x10000C03)
[   45.736059] [drm] Loading R300 Microcode
[   46.028800] [drm] radeon: ring at 0x0000000080000000
[   46.028824] [drm] ring test succeeded in 1 usecs
[   46.028977] [drm] radeon: ib pool ready.
[   46.029074] [drm] ib test succeeded in 0 usecs
[   46.029117] [drm] Default TV standard: NTSC
[   46.029120] [drm] 14.318180000 MHz TV ref clk
[   46.029198] [drm] Panel ID String: LPL                     
[   46.029201] [drm] Panel Size 1024x768
[   46.029255] [drm] Default TV standard: NTSC
[   46.029257] [drm] 14.318180000 MHz TV ref clk
[   46.029287] [drm] Radeon Display Connectors
[   46.029290] [drm] Connector 0:
[   46.029292] [drm]   VGA
[   46.029295] [drm]   DDC: 0x68 0x68 0x68 0x68 0x68 0x68 0x68 0x68
[   46.029297] [drm]   Encoders:
[   46.029300] [drm]     CRT1: INTERNAL_DAC2
[   46.029302] [drm] Connector 1:
[   46.029304] [drm]   LVDS
[   46.029307] [drm]   DDC: 0x198 0x198 0x19c 0x19c 0x1a0 0x1a0 0x1a4 0x1a4
[   46.029309] [drm]   Encoders:
[   46.029311] [drm]     LCD1: INTERNAL_LVDS
[   46.029314] [drm] Connector 2:
[   46.029315] [drm]   S-video
[   46.029317] [drm]   Encoders:
[   46.029319] [drm]     TV1: INTERNAL_DAC2
[   46.163091] [drm] fb mappable at 0xD0040000
[   46.163096] [drm] vram apper at 0xD0000000
[   46.163098] [drm] size 3145728
[   46.163100] [drm] fb depth is 24
[   46.163102] [drm]    pitch is 4096
[   46.163773] fbcon: radeondrmfb (fb0) is primary device
[   46.195829] fb0: radeondrmfb frame buffer device
[   46.195839] [drm] Initialized radeon 2.0.0 20080528 for 0000:01:05.0 on
minor 0


I.e., the line that reads radeon: 3 quad pipes, 1 z pipes initialized sometimes
changes to 1 quad pipes.

Loading/unloading the driver does not change that, only reboots/power cycles
do.

My display device:

01:05.0 VGA compatible controller: ATI Technologies Inc RS400 [Radeon Xpress
200M] (prog-if 00 [VGA controller])
        Subsystem: LG Electronics, Inc. Device 0023
        Flags: bus master, 66MHz, medium devsel, latency 66, IRQ 11
        Memory at d0000000 (32-bit, prefetchable) [size=256M]
        I/O ports at 9000 [size=256]
        Memory at c0100000 (32-bit, non-prefetchable) [size=64K]
        [virtual] Expansion ROM at c0120000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 2
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
        Kernel driver in use: radeon


/proc/cpuinfo 
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Celeron(R) M processor         1.60GHz
stepping        : 8
cpu MHz         : 1600.021
cache size      : 1024 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx bts
bogomips        : 3200.04
clflush size    : 64
cache_alignment : 64
address sizes   : 32 bits physical, 32 bits virtual
power management:

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