http://bugzilla.kernel.org/show_bug.cgi?id=14596
Summary: radeon DRI driver produces garbled console with KMS
enabled on Thinkpad T42
Product: Drivers
Version: 2.5
Kernel Version: 2.6.3x
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
AssignedTo: drivers_video-...@kernel-bugs.osdl.org
ReportedBy: p...@debian.org
Regression: Yes
I'm currently on 2.6.32-rc7-00052-g0a24168, but this has happened since KMS was
introduced. Booting with radeon.modeset=0 works around the problem.
The display is OK, except that the console font is garbled horizontally, as if
the pixels for each character are slightly permuted or interleaved.
[drm] Initialized drm 1.1.0 20060810
[drm] Initialized radeon 1.31.0 20080528 for 0000:01:00.0 on minor 0
agpgart-intel 0000:00:00.0: AGP 2.0 bridge
agpgart-intel 0000:00:00.0: putting AGP V2 device into 4x mode
pci 0000:01:00.0: putting AGP V2 device into 4x mode
[drm] Setting GART location based on new memory map
[drm] Loading R100 Microcode
platform radeon_cp.0: firmware: requesting radeon/R100_cp.bin
[drm] writeback test succeeded in 1 usecs
mtrr: no MTRR for e0000000,2000000 found
[drm] Module unloaded
[drm] Initialized drm 1.1.0 20060810
[drm] radeon defaulting to kernel modesetting.
[drm] radeon kernel modesetting enabled.
[drm] radeon: Initializing kernel modesetting.
[drm] register mmio base: 0xC0100000
[drm] register mmio size: 65536
[drm] GPU reset succeed (RBBM_STATUS=0x00000140)
agpgart-intel 0000:00:00.0: AGP 2.0 bridge
agpgart-intel 0000:00:00.0: putting AGP V2 device into 1x mode
radeon 0000:01:00.0: putting AGP V2 device into 1x mode
[drm] radeon: VRAM 64M
[drm] radeon: VRAM from 0x00000000 to 0x03FFFFFF
[drm] radeon: GTT 256M
[drm] radeon: GTT from 0xD0000000 to 0xDFFFFFFF
[drm] radeon: irq initialized.
[drm] Detected VRAM RAM=64M, BAR=128M
[drm] RAM width 64bits DDR
[TTM] Zone kernel: Available graphics memory: 443890 kiB.
[TTM] Zone highmem: Available graphics memory: 1037494 kiB.
[drm] radeon: 32M of VRAM memory ready
[drm] radeon: 256M of GTT memory ready.
[drm] radeon: cp idle (0x00008080)
[drm] Loading R100 Microcode
platform radeon_cp.0: firmware: requesting radeon/R100_cp.bin
[drm] radeon: ring at 0x00000000D0000000
[drm] ring test succeeded in 1 usecs
[drm] radeon: ib pool ready.
[drm] ib test succeeded in 0 usecs
[drm] DFP table revision: 2
[drm] Panel ID String: 1024x768
[drm] Panel Size 1024x768
[drm] Default TV standard: NTSC
[drm] 27.000000000 MHz TV ref clk
[drm] Radeon Display Connectors
[drm] Connector 0:
[drm] VGA
[drm] DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[drm] Encoders:
[drm] CRT1: INTERNAL_DAC1
[drm] Connector 1:
[drm] DVI-D
[drm] DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[drm] Encoders:
[drm] DFP1: INTERNAL_TMDS1
[drm] Connector 2:
[drm] LVDS
[drm] Encoders:
[drm] LCD1: INTERNAL_LVDS
[drm] Connector 3:
[drm] S-video
[drm] Encoders:
[drm] TV1: INTERNAL_DAC2
[drm] fb mappable at 0xE0040000
[drm] vram apper at 0xE0000000
[drm] size 3145728
[drm] fb depth is 24
[drm] pitch is 4096
[drm] LVDS-13: set mode 1024x768 17
Console: switching to colour frame buffer device 128x48
fb0: radeondrmfb frame buffer device
registered panic notifier
[drm] Initialized radeon 2.0.0 20080528 for 0000:01:00.0 on minor 0
Xorg identifies the card as:
(--) RADEON(0): Chipset: "ATI Radeon Mobility M7 LW (AGP)" (ChipID = 0x4c57)
(II) RADEON(0): Detected total video RAM=32768K, accessible=65536K (PCI
BAR=131072K)
(--) RADEON(0): Mapped VideoRAM: 32768 kByte (64 bit DDR SDRAM)
lspci says:
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M7 LW
[Radeon Mobility 7500]
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