[Bug 37169] [r280] GL applications crash X (KMS in Ubuntu 11.04)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=37169

--- Comment #5 from Vlado Plaga <rechner at vlado-do.de> 2011-05-16 14:00:39 PDT ---
(In reply to comment #4)

> you might try no_wb=1 along with agpmode=-1

Some improvement: the system does not crash anymore. Still no 3D acceleration,
though. Some dmesg output:

[  163.303060] [drm] radeon kernel modesetting enabled.
[  163.303184] radeon 0000:00:10.0: enabling device (0006 -> 0007)
[  163.309647] [drm] initializing kernel modesetting (RV280 0x1002:0x5962).
[  163.309662] [drm] Forcing AGP to PCI mode
[  163.309684] [drm] register mmio base: 0x90000000
[  163.309688] [drm] register mmio size: 65536
[  163.309768] radeon 0000:00:10.0: Invalid ROM contents
[  163.309812] radeon 0000:00:10.0: Invalid ROM contents
[  163.309829] [drm:radeon_get_bios] *ERROR* Unable to locate a BIOS ROM
[  163.309859] [drm] Using device-tree clock info
[  163.309866] [drm] Generation 2 PCI interface, using max accessible memory
[  163.309875] radeon 0000:00:10.0: VRAM: 128M 0x0000000098000000 -
0x000000009FFFFFFF (32M used)
[  163.309883] radeon 0000:00:10.0: GTT: 512M 0x0000000078000000 -
0x0000000097FFFFFF
[  163.309903] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[  163.309907] [drm] Driver supports precise vblank timestamp query.
[  163.309944] [drm] radeon: irq initialized.
[  163.309948] [drm] Detected VRAM RAM=128M, BAR=128M
[  163.309953] [drm] RAM width 64bits DDR
[  163.313796] [TTM] Zone  kernel: Available graphics memory: 383788 kiB.
[  163.313805] [TTM] Zone highmem: Available graphics memory: 514860 kiB.
[  163.313810] [TTM] Initializing pool allocator.
[  163.313921] [drm] radeon: 32M of VRAM memory ready
[  163.313927] [drm] radeon: 512M of GTT memory ready.
[  163.313982] [drm] GART: num cpu pages 131072, num gpu pages 131072
[  163.323879] radeon 0000:00:10.0: WB disabled
[  163.326049] [drm] Loading R200 Microcode
[  163.396720] [drm] radeon: ring at 0x0000000078001000
[  163.534044] [drm:r100_ring_test] *ERROR* radeon: ring test failed
(scratch(0x15E4)=0xCAFEDEAD)
[  163.534082] [drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
[  163.534102] radeon 0000:00:10.0: failed initializing CP (-22).
[  163.534117] radeon 0000:00:10.0: Disabling GPU acceleration
[  163.671374] [drm:r100_cp_fini] *ERROR* Wait for CP idle timeout, shutting
down CP.
[  163.808651] Failed to wait GUI idle while programming pipes. Bad things
might happen.
[  163.815157] [drm] radeon: cp finalized
[  163.827669] [drm] Connector Table: 6 (mini external tmds)
[  163.827686] [drm] No valid Ext TMDS info found in BIOS
[  163.827696] [drm] No TV DAC info found in BIOS
[  163.832754] [drm] Radeon Display Connectors
[...]
[  163.997877] [drm] fb depth is 8
[  163.997880] [drm]    pitch is 1920
[  164.532215] Console: switching to colour frame buffer device 240x67
[  164.572184] fb0: radeondrmfb frame buffer device
[  164.572188] drm: registered panic notifier
[  164.572227] [drm] Initialized radeon 2.9.0 20080528 for 0000:00:10.0 on
minor 0

> It's a powerpc specific issue.  Unfortunately, I don't have the hardware or
> time to debug it extensively.

Too bad. Anyway, thanks for helping this far! Maybe someone else has any
suggestion?

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