[Bug 16226] xrandr - ATI FireGL T2 (Thinkpad T42p) - Problem with two external Monitors

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=16226

--- Comment #5 from Marc S. <marcnesium at web.de> 2011-09-04 06:46:39 PDT ---
I have very similar problem, except it is only an issue while using compiz. In
detail:
I'm using a Thinkpad T42p with ATI FireGL T2 (M10) with Ubuntu 11.04.
Using metacity while having two monitors is working flawlessly.
But with enabled compiz (on laptop screen only is no problem) and then
connecting a 2nd monitor (or putting laptop into docking station with connected
lcd) both screens get scrambled (see attachment). Can't find any error messages
though.

(I tried to disable KMS, but no use.)

Some more details:

$ uname -a
Linux T42p 2.6.38-11-generic #48-Ubuntu SMP Fri Jul 29 19:05:14 UTC 2011 i686
i686 i386 GNU/Linux  

$ lspci -nn | grep VGA
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc M10 NT [FireGL
Mobility T2] [1002:4e54] (rev 80)

$ sudo lshw -class Display
  *-display               
       description: VGA compatible controller
       product: M10 NT [FireGL Mobility T2]
       vendor: ATI Technologies Inc
       physical id: 0
       bus info: pci at 0000:01:00.0
       version: 80
       width: 32 bits
       clock: 66MHz
       capabilities: agp agp-2.0 pm vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=66 mingnt=8
       resources: irq:11 memory:e0000000-e7ffffff ioport:3000(size=256)
memory:c0100000-c010ffff memory:c0120000-c013ffff

$ dmesg | grep drm
[    1.717623] [drm] Initialized drm 1.1.0 20060810
[    1.794946] [drm] radeon defaulting to kernel modesetting.
[    1.794958] [drm] radeon kernel modesetting enabled.
[    1.798665] [drm] initializing kernel modesetting (RV350 0x1002:0x4E54).
[    1.798710] [drm] register mmio base: 0xC0100000
[    1.798715] [drm] register mmio size: 65536
[    1.799049] [drm] Generation 2 PCI interface, using max accessible memory
[    1.799081] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[    1.799087] [drm] Driver supports precise vblank timestamp query.
[    1.799106] [drm] radeon: irq initialized.
[    1.800352] [drm] Detected VRAM RAM=128M, BAR=128M
[    1.800364] [drm] RAM width 128bits DDR
[    1.800505] [drm] radeon: 128M of VRAM memory ready
[    1.800511] [drm] radeon: 256M of GTT memory ready.
[    1.800554] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[    1.802644] [drm] Loading R300 Microcode
[    1.806285] [drm] radeon: ring at 0x00000000D0001000
[    1.806314] [drm] ring test succeeded in 1 usecs
[    1.806541] [drm] radeon: ib pool ready.
[    1.806622] [drm] ib test succeeded in 0 usecs
[    1.807712] [drm] Panel ID String: 1600x1200               
[    1.807719] [drm] Panel Size 1600x1200
[    1.807826] [drm] No TV DAC info found in BIOS
[    1.807906] [drm] Radeon Display Connectors
[    1.807912] [drm] Connector 0:
[    1.807916] [drm]   VGA
[    1.807921] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[    1.807927] [drm]   Encoders:
[    1.807931] [drm]     CRT1: INTERNAL_DAC1
[    1.807936] [drm] Connector 1:
[    1.807940] [drm]   DVI-D
[    1.807944] [drm]   HPD1
[    1.807948] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[    1.807954] [drm]   Encoders:
[    1.807958] [drm]     DFP1: INTERNAL_TMDS1
[    1.807963] [drm] Connector 2:
[    1.807967] [drm]   LVDS
[    1.807970] [drm]   Encoders:
[    1.807974] [drm]     LCD1: INTERNAL_LVDS
[    1.807979] [drm] Connector 3:
[    1.807982] [drm]   S-video
[    1.807986] [drm]   Encoders:
[    1.807990] [drm]     TV1: INTERNAL_DAC2
[    1.867425] [drm] radeon: power management initialized
[    2.004770] [drm] fb mappable at 0xE0040000
[    2.004777] [drm] vram apper at 0xE0000000
[    2.004782] [drm] size 7680000
[    2.004786] [drm] fb depth is 24
[    2.004790] [drm]    pitch is 6400
[    2.004989] fbcon: radeondrmfb (fb0) is primary device
[    2.180898] fb0: radeondrmfb frame buffer device
[    2.181061] drm: registered panic notifier
[    2.181292] [drm] Initialized radeon 2.8.0 20080528 for 0000:01:00.0 on
minor 0

Is it a bug? Can i investigate more? What can i try?
Thanks in advance!
Bye, Marc.

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.