Bug 724

I have Gigabyte Radeon 9200 card (pci id 0x5961). When attached to dvi port, my
display (AOC LM919 tft), occasionally exhibits all kinds of wierd behaviour when
serving certain apps:
1. Thin white lines striking to the right (mostly QT based apps, like konqueror
or kdevelop).
2. Display turns off and on alternatively (same apps as before + some LessTif
apps, like djview and xpdf).
3. Display become diagonalized and rotated to left (mostly caused by xpdf).
All this problems can be temporarily resolved by closing the offending
application (and sometimes switching to and from text console to restore
display). Interestingly enough, there are apps that never cause such things -
older Athena based apps (xv, gv), most gtk based apps (though mozilla flash
plugin causes them when activated) and xine (full screen movies run fine).

I have the same problems on Win XP but with much lesser extent and mostly with
two apps (IE and Adobe Acrobat; Adobe Indesign, for example, never does such
things, while it obviously shares much of the design with Acrobat).

On the other hand, Vesa X server always works fine (I've never seen any of the
mentioned problems with it).

ATI fglrx server (both 3.7.6 and 3.9.0) fails to enable the dvi head at all (the
server runs and responds, but display remains black).

VGA head always works fine.

The same problem is present in XFree86 4.3 and 4.4 radeon drivers.

Server options "DisplayPriority" and "DDCMode" help a little (by reducing a
frequency of artifacts, while not eliminating them).

My machine conviguration:
P3 - 600MHz
Intel 815 chipset
512 MB ram
Gigabyte Radeon 9200 VIVO + 128MB
AOC LM919 panel attached to DVI head running in default mode (no modelines in
XF86Config).