On Sat, 6 Jul 2002, Henk de Leeuw wrote:
> On 9 Apr 2002, Marc Aurele La France wrote:
> > On 9 Apr 2002, Kherry Zamore wrote:
> >> I have an ATI Rage II+DVD (Mach64, Rage128 chipset) and am using XFree86
> >> 4.1.0 on FreeBSD. I'm stuck with a slightly annoying problem.
> >> Artifacts are left on the screen after moving around some windows. I
> >> tried disabling a few options and changing resolutions/color depths, but
> >> that didn't solve the problem. Another thing I should mention is when I
> >> go to console, characters tend to disappear and reappear on the screen
> >> when it scrolls. I'm not exactly sure if this is a hardware or software
> >> problem since XF86 3.3.6 didn't have any problems when I used it. If
> >> anyone has any suggestions, it would be greatly appreciated.
> > Let's narrow this down a bit. See if the artifacts still appear with
> > Option "NoAccel".
> I did not see any follow-up on these posts, and I'm having the same problems.
> To me, it seems that it is caused when screen content is blitted from display
> memory to display memory. It appears most pronouncedly when I'm moving a
> window horizontally. Also, in a Konsole, I notice that pixels of characters
> are randomly absent. I think that part of video memory is used as a font
> cache, so this could be indicative of hardware blitting problems also.
> I tried the Option "NoAccel", and problems disappeared.
> This also seems to point in the direction of hardware blitting trouble.
> Any more tests I can do?
Yes, replace that Option "NoAccel" with one or more of the following
(starting with the most likely culprit(s))
Option "XaaNoScreenToScreenCopy"
Option "XaaNoScanlineCPUToScreenColorExpandFill"
Option "XaaNoPixmapCache"
Option "XaaNoOffscreenPixmaps"
Option "XaaNoMono8x8PatternFillRect"
Option "XaaNoSolidFillRect"
Let me know which mininal set of the above cure all artifacts.
BTW, what architecture is this?
Marc.
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| Marc Aurele La France | work: 1-780-492-9310 |
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XFree86 Core Team member. ATI driver and X server internals.
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