2.5 AGP no good (VIA KT333, radeon 7500)

[Duncan Sands]

Latest Linus 2.5 BK:

In system logs:

kernel: Linux agpgart interface v0.100 (c) Dave Jones
kernel: agpgart: Detected VIA Apollo Pro KT266/KT333 chipset
kernel: agpgart: Maximum main memory to use for agp memory: 439M
kernel: agpgart: AGP aperture is 128M @ 0xe0000000
...
(X-windows starts)
kernel: agpgart: Putting AGP V2 device at 00:00.0 into 1x mode
kernel: agpgart: Putting AGP V2 device at 01:00.0 into 1x mode

X-windows starts, but the picture is horribly torn, only the grey stipple
pattern is recognizable.  Any thoughts?  Or should I start a binary
search for the last version that worked?

Thanks, Duncan.

00:00.0 Host bridge: VIA Technologies, Inc. VT8366/A/7 [Apollo KT266/A/333]
00:01.0 PCI bridge: VIA Technologies, Inc. VT8366/A/7 [Apollo KT266/A/333 AGP]
00:06.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
00:06.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
00:07.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator] (rev 01)
00:0a.0 USB Controller: VIA Technologies, Inc. USB (rev 04)
00:10.0 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.1 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.2 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586/B/686A/B PIPC Bus Master IDE (rev 06)
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233 AC97 Audio Controller (rev 50)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV200 QW [Radeon 7500]