[Bug 26703] New: X1650 dual-DVI "flickers" with different modelines

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=26703

           Summary: X1650 dual-DVI "flickers" with different modelines
           Product: xorg
           Version: 7.4
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: arequipeno at gmail.com
         QAContact: xorg-team at lists.x.org


Adapter is a dual-DVI X1650 Pro with DVI-D connections to both displays:

  01:00.0 0300: 1002:71c1 (rev 9e)
  01:00.1 0380: 1002:71e1 (rev 9e)

01:00.0 VGA compatible controller: ATI Technologies Inc Radeon X1650 Pro (rev
9e) (prog-if 00 [VGA controller])
        Subsystem: PC Partner Limited Device 0840
        Flags: bus master, fast devsel, latency 0, IRQ 26
        Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Memory at feaf0000 (64-bit, non-prefetchable) [size=64K]
        I/O ports at d000 [size=256]
        Expansion ROM at feac0000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] Express Endpoint, MSI 00
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Kernel driver in use: radeon
        Kernel modules: radeon

01:00.1 Display controller: ATI Technologies Inc Radeon X1650 Pro (Secondary)
(rev 9e)
        Subsystem: PC Partner Limited Device 0841
        Flags: bus master, fast devsel, latency 0
        Memory at feae0000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] Express Endpoint, MSI 00

When using different modelines on the two displays, even if the resolution
and refresh rate are the same, I see a "flickers" on one or the other display
every 20 minutes or so.


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