[Bug 30143] New: [KMS] mesa demo lodbias broken

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Sep 11 22:30:31 PDT 2010


https://bugs.freedesktop.org/show_bug.cgi?id=30143

           Summary: [KMS] mesa demo lodbias broken
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/r200
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: randrik at mail.ru


Running software:

kernel 2.6.36-rc3

mesa - commit d8a36620089e72d431ae853ec168f193f3376782
Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Fri Sep 10 13:10:26 2010 -0700

    mesa: Remove unused Emit flags from gl_shader_compiler_options

libdrm - commit b04515c5d6c95f573457a94267b855cceb639105
Author: Benjamin Herrenschmidt <benh at kernel.crashing.org>
Date:   Fri Aug 6 13:55:11 2010 +1000

    libdrm: Fix PCI domain domain support

xf86-video-ati - commit bdd41fecdb19c83c6c7b793016b61d38065dcd13
Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Fri Aug 20 01:17:13 2010 -0400

    evergreen: set encoder type to DVI for HDMI

Xserver: 1.9.0

self-build with  gcc (GCC) 4.4.4


Hw:

01:00.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 SE]
(rev 01) (prog-if 00 [VGA controller])
        Subsystem: Hightech Information System Ltd. Excalibur 9200SE VIVO 128M
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 64 (2000ns min), Cache Line Size: 32 bytes
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at d0000000 (32-bit, prefetchable) [size=128M]
        Region 1: I/O ports at c800 [size=256]
        Region 2: Memory at dfef0000 (32-bit, non-prefetchable) [size=64K]
        Expansion ROM at dfec0000 [disabled] [size=128K]
        Capabilities: [58] AGP version 2.0
                Status: RQ=80 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans-
64bit- FW+ AGP3- Rate=x1,x2,x4
                Command: RQ=32 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW-
Rate=x4


I'll add logs and screenshot. For me it looks like only very negative bias
resulted in image displayed, everything else just looks like  heavily corrupted
mipmaps of texture. Probably bug in _mesa_meta_GenerateMipmap(), may be due to
driver setting something wrong

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