Very Computer

by **Dan McGui** » Thu, 16 Feb 1995 16:29:52

I have a STB Horizon-VL CLGD5426 VESA local bus video card on a Hint
EISA/VESA 486DX2/66 motherboard. I'm having problems with graphical
glitches using XFree86-3.1.1 (the problem also occurred with 3.1). When
an xterm scrolls, or is exposed after being hidden behind another window,
some 'droppings' frequently appear. These consist of horizontal lines
about 10 pixels long, and appear between the lines of text about an inch
from the left-hand side of the window. Redrawing the xterm by hitting
^L or re-exposing the window will cause them to go away.

Is this a known problem? Are there any fixes available?

--
"Emergency! Everything is uncool. Send the mothership."
--Levon

by **Vidur Dhand** » Fri, 17 Feb 1995 16:06:46

> I have a STB Horizon-VL CLGD5426 VESA local bus video card on a Hint
> EISA/VESA 486DX2/66 motherboard. I'm having problems with graphical
> glitches using XFree86-3.1.1 (the problem also occurred with 3.1). When
> an xterm scrolls, or is exposed after being hidden behind another window,
> some 'droppings' frequently appear. These consist of horizontal lines
> about 10 pixels long, and appear between the lines of text about an inch
> from the left-hand side of the window. Redrawing the xterm by hitting
> ^L or re-exposing the window will cause them to go away.

> Is this a known problem? Are there any fixes available?

> --
> "Emergency! Everything is uncool. Send the mothership."
> --Levon

I have similar problems. Please if someone knows the right
settings, let us know. I'm running 3.1 and an unable to run it
in 1024x768
Vidur Dhanda

by **Mikko A. Suome** » Mon, 20 Feb 1995 20:19:44

> EISA/VESA 486DX2/66 motherboard. I'm having problems with graphical
> glitches using XFree86-3.1.1 (the problem also occurred with 3.1). When
> an xterm scrolls, or is exposed after being hidden behind another window,
> some 'droppings' frequently appear. These consist of horizontal lines

> Is this a known problem? Are there any fixes available?

I _don't_know_ what is wrong, but I suspect that there is some
timing problems between XFree86's drivers and yours videocards
DRAM-memory-chips.. I had samekind problems when I used option

Option "fifo_aggressive"

in my XF86Config. But when I took it out, glittering disappeared.
Check if you have the same option set and try to take that out.
Or if that is not enought, try then add an option

Option "fifo_conservative"

I have Cirrus Logic GLGD-5428 VLB-card and XFree86 3.1 and kernel is
1.1.92.

--
Mikko Suomela

by **Chris Eilbec** » Wed, 22 Feb 1995 03:51:02

> I have a STB Horizon-VL CLGD5426 VESA local bus video card on a Hint
> EISA/VESA 486DX2/66 motherboard. I'm having problems with graphical
> glitches using XFree86-3.1.1 (the problem also occurred with 3.1). When
> an xterm scrolls, or is exposed after being hidden behind another window,
> some 'droppings' frequently appear. These consist of horizontal lines
> about 10 pixels long, and appear between the lines of text about an inch
> from the left-hand side of the window. Redrawing the xterm by hitting
> ^L or re-exposing the window will cause them to go away.

> Is this a known problem? Are there any fixes available?

> --
> "Emergency! Everything is uncool. Send the mothership."
> --Levon

I get the same thing with a 5428vlb with 2Mb but only in 1280x1024x256
but they disappear on their own. There are no problems in other modes.

Chris

by **Harm Hanemaaij** » Tue, 21 Feb 1995 20:58:23

>> I have a STB Horizon-VL CLGD5426 VESA local bus video card on a Hint
>> EISA/VESA 486DX2/66 motherboard. I'm having problems with graphical
>> glitches using XFree86-3.1.1 (the problem also occurred with 3.1). When
>> an xterm scrolls, or is exposed after being hidden behind another window,
>> some 'droppings' frequently appear. These consist of horizontal lines
>> about 10 pixels long, and appear between the lines of text about an inch
>> from the left-hand side of the window. Redrawing the xterm by hitting
>> ^L or re-exposing the window will cause them to go away.

You might want to try the "no_imageblt" function.
It may be related to some kind of timing problem with the 5426 chip
on VL-bus and the DX2/66 CPU with the accelerated functions in the
XFree86 Cirrus driver.

--

Very Computer

CLGD5426/XFree-3.1.1 graphics glitches

CLGD5426/XFree-3.1.1 graphics glitches

CLGD5426/XFree-3.1.1 graphics glitches

CLGD5426/XFree-3.1.1 graphics glitches

CLGD5426/XFree-3.1.1 graphics glitches

CLGD5426/XFree-3.1.1 graphics glitches