** Description changed:
After a fresh Intrepid install everything is working great on the
Mobility X1600 this iMac has. But, as I had a monitor I used while in
OS X beside it, I tried to get dual-head working, which before xrandr
was nearly impossible to any satisfaction.
In Intrepid it "just worked", bravo!
So, my issue now is that there seems to be two sources of flicker with
dual-head that do not appear in normal single head, with this setup:
* In some areas of the screen the mouse will strobe or flicker with
what looks like noise... I thought it might be one-off issues with the
mouse pointer image, but I couldn't find any rhyme or reason to it.
Other parts of the screen the pointer works just fine. This happens
only in extended desktop.
* Occasionally, the window in focus will "blink" outside of its
bounds, as if not contained for a split second. This happens with both
mirrored and extended desktop.
Again, they seem to be isolated to just dual-head mode, so I haven't
been able to reproduce them without it.
Monitor #1: 1440x900 iMac
Monitor #2: 1680x1050 Dell 20"
- It's worth noting, too, that using mixed monitor resolutions, or keeping
- them at the same resolution, doesn't seem to have an effect on the
- flicker, which still occurs.
+ It's worth noting, too, that using mixed monitor resolutions, or keeping them
at the same resolution, doesn't seem to have an effect on the flicker, which
still occurs.
+ [lspci]
+ 00:00.0 Host bridge [0600]: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML
and 945GT Express Memory Controller Hub [8086:27a0] (rev 03)
+ Subsystem: Intel Corporation Device [8086:7270]
+ 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc M56P [Radeon
Mobility X1600] [1002:71c5]
+ Subsystem: Apple Computer Inc. Device [106b:0080]
--
Dual-head Radeon Mobility X1600 flickers
https://bugs.launchpad.net/bugs/289216
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