Having just upgraded my system from Mandrake 7.2 running the original
XFree86 4.1.0 binaries to the XFree86 4.2.0 provided with Mandrake 8.2 (/
partition was reformatted for this upgrade) I now have a visual problem
with the XFree86 display. The card in this machine (an IBM 300PL) is a S3
Trio 3D which identifies itself to XFree86 4.2.0 as:

(II) S3VIRGE(0): VESA BIOS detected
(II) S3VIRGE(0): VESA VBE Version 2.0
(II) S3VIRGE(0): VESA VBE Total Mem: 4096 kB
(II) S3VIRGE(0): VESA VBE OEM: S3 Incorporated Trio3D.
(II) S3VIRGE(0): VESA VBE OEM Software Rev: 1.1
(II) S3VIRGE(0): VESA VBE OEM Vendor: S3 Incorporated.
(II) S3VIRGE(0): VESA VBE OEM Product: Trio3D
(II) S3VIRGE(0): VESA VBE OEM Product Rev: Rev B
(--) S3VIRGE(0): Chipset: "trio 3d"
(II) S3VIRGE(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is
0x0000
(II) S3VIRGE(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is
0x0000

The left hand side and middle of the screen are fine, but the right hand
side of the display is covered with multiple copies of a strip about 180
pixels wide taken from the middle of the screen and duplicated roughly
three times (in 1280x1024 resolution) on the right hand side of the screen.
Every application appears to be acting normally on this setup, the X server
runs happily enough without errors in the /var/log/XFree86.0.log file.
This effect is not observed in 8bit colour but is seen in 15, 16 and 24bit
colour depths. Moving to higher resolutions like 1400x1050 results in a
similar effect with roughly five copies of that strip on the right hand
side of the screen.

Disabling acceleration for the s3virge driver does not affect the display.
Similarly settings like "fifo_conservative" do not have any effect. I've
tried reverting to the older frame buffer code and that does not change the
display either. Fiddling with xvidtune does not have any effect.

At the moment I'm reverting back to XFree86 3.3.6 but I would like to know
if this is a known problem. XFree86 logs, current configs are available on
request.

Cheers,

Toby Haynes
tel: (905) 413-4330
fax: (905) 413-4849
email: [EMAIL PROTECTED]

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