Lockup with ATI Radeon HD 2400 XT in dual-head...

[Bárður Árantsson]

Hi all,

I'm experiencing lockups with the "ati" driver on an ATI Radeon HD 2400
XT when I try to start X in a dual-head configuration.

The configuration is completely vanilla, so:

  Section "Device"
        Identifier  "Card0"
        Driver      "ati"
        VendorName  "Radeon"
        BoardName   "Radeon HD2400XT"
        BusID       "PCI:1:0:0"
  EndSection

  Section "Device"
       Identifier     "Card1"
        Driver      "ati"
       VendorName  "Radeon"
       BoardName   "Radeon HD2400XT"
       BusID          "PCI:4:0:0"
  EndSection

(with two Screen declarations + Xinerama enabled).

If I remove one of the Device sections, everything seems to come up
fine. (No acceleration of course, but that'll have to do for now.)

I've attached the X log from a crashed startup. Since the machine locks
hard I can't really tell if there is any more output -- and I'm loath to
try the crashing setup too often.

Here's what lspci -v says:

01:00.0 VGA compatible controller: ATI Technologies Inc Radeon HD 2400
XT (prog-if 00 [VGA controller])
        Subsystem: ASUSTeK Computer Inc. Device 01c8
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at a0000000 (64-bit, prefetchable) [size=256M]
        Memory at ff1f0000 (64-bit, non-prefetchable) [size=64K]
        I/O ports at 5000 [size=256]
        Expansion ROM at ff1c0000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 3
        Capabilities: [58] Express Legacy Endpoint, MSI 00
        Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit+
Count=1/1 Enable-
        Capabilities: [100] Vendor Specific Information <?>



04:00.0 VGA compatible controller: ATI Technologies Inc Radeon HD 2400
XT (prog-if 00 [VGA controller])
        Subsystem: ASUSTeK Computer Inc. Device 01c8
        Flags: fast devsel, IRQ 11
        Memory at c0000000 (64-bit, prefetchable) [disabled] [size=256M]
        Memory at ff4e0000 (64-bit, non-prefetchable) [disabled] [size=64K]
        I/O ports at a000 [disabled] [size=256]
        Expansion ROM at ff4c0000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 3
        Capabilities: [58] Express Legacy Endpoint, MSI 00
        Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit+
Count=1/1 Enable-
        Capabilities: [100] Vendor Specific Information <?>


Does anyone have any hints as to what I can try to get things working or
to help debug the issue?

Cheers,

-- 
Bardur Arantsson
<bardurREMOVE at THISscientician.net>

[Postmodernism] is more like a three year old throwing his blocks
around the room because he got frustrated with his failed
attempts to stack them higher.
                               Black Parrot @ http://slashdot.org
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