"intel" driver dies in i830_allocate_2d_memory() with multiple displays on Intel 865G

Bruce Perens bruce at perens.com
Wed May 23 21:12:30 PDT 2007


Can someone tell me what I'm doing wrong, or if I should just file this 
as a bug?

Using Debian "unstable" (to have recent versions of X), the 2.6.21 
kernel, a "Gigabyte" motherboard with Intel 965G, a card with two TMDS 
outputs, and a VGA output on the motherboard. I am trying a three-screen 
configuration. Not even two screens works. The driver dies here:

    (II) intel(0): Attempting memory allocation with tiled buffers and
                   large DRI memory manager reservation:
    (II) intel(2): Allocating 0 scanlines for pixmap cache

    0: /usr/bin/X11/X(xf86SigHandler+0x81) [0x80c8591]
    1: [0xffffe420]
    2: /usr/lib/xorg/modules/drivers//intel_drv.so [0xb7c15ec0]
    3: /usr/lib/xorg/modules/drivers//intel_drv.so [0xb7c16e6e]
    5: /usr/lib/xorg/modules/drivers//intel_drv.so [0xb7c12f2e]
    6: /usr/bin/X11/X(AddScreen+0x1ee) [0x80764be]
    7: /usr/bin/X11/X(InitOutput+0x21e) [0x80a7b6e]
    8: /usr/bin/X11/X(main+0x27b) [0x8076c6b]
    9: /lib/i686/cmov/libc.so.6(__libc_start_main+0xdc) [0xb7dc3ebc]
    10: /usr/bin/X11/X(FontFileCompleteXLFD+0x1e5) [0x80761a1]

Configuring for one screen works, all three screens display the same 
image when I do that.

xorg.conf for the three-display configuration is at 
and server log output for that configuration is at 

Additional questions:

    (WW) intel: No matching Device section for instance (BusID PCI:0:2:1) found

This is complaining about the second appearance of the 865G on the PCI bus.

    00:02.0 VGA compatible controller: Intel Corporation 82G965
    Integrated Graphics Controller (rev 02)
    00:02.1 Display controller: Intel Corporation 82G965 Integrated
    Graphics Controller (rev 02)

What, if anything, should I configure about that second appearance?

I seem to have trouble associating a TMDS port with a monitor:

    (II) intel(0): Output TMDS-1 has no monitor section

I do have three monitor and screen sections, how can I associate one 
with the TMDS port? This version of the driver doesn't heed MonitorLayout.


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