I have a powermac with s3virge pci card (Formac GA6). The card has F-code
ROM so OpenFirmware recognizes and initializes it. I boot to Linux
(through macos), Linux sees it as a unknown 1024x768 openfirmware
framebuffer and it works OK in console. Linux 2.2.20 and 2.4.19 tested.
Now I try to run X on it (latest 4.2.99 CVS - tried 4.1 also, no
difference). The screen comes up garbled - it has vertical stripes, mouse
cursor is a big square with random pattern, usually the lower 1/3 of
screen is just garbage where even mouse cursor is not shown (but it
flickers when moving mouse or scrolling text). When drawing windows (xterm
for example), some pixels are missing or garbled and scrolling distorts
all the image. Sometimes (maybe always) also the color palette is wrong.
Some letters are also flipped left-to-right in addition to being garbled.
24-bit, 16-bit and 15-bit depth ar all the same; 8-bit depth does have
correct colors an no garbage in the lower third of the screen but mouse
cursor and fonts are still garbled.
Using software cursor cures the cursor image but this is just one detail.
Has anybody run s3virge on powerpc successfully? Any hints to get it
running?
Selected interesting lines from the log:
(EE) S3VIRGE(0): Cannot read V_BIOS (5)
(II) S3VIRGE: driver (version 1.8.3) for S3 ViRGE chipsets: virge, 86C325,
virge vx, 86C988, virge dx, virge gx, 86C375, 86C385, virge gx2,
86C357, virge mx, 86C260, virge mx+, 86C280, trio 3d, 86C365,
trio 3d/2x, 86C362, 86C368
(--) Chipset virge found
(**) S3VIRGE(0): Depth 24, (--) framebuffer bpp 24
(==) S3VIRGE(0): RGB weight 888
(==) S3VIRGE(0): Default visual is TrueColor
(==) S3VIRGE(0): Using HW Cursor
(==) S3VIRGE(0): Using fb.
(==) S3VIRGE(0): mx_cr3a_fix.
(==) S3VIRGE(0): XVideo allowed (depends on chipset).
(II) S3VIRGE(0): initializing int10
(EE) S3VIRGE(0): Cannot read V_BIOS (5)
(--) S3VIRGE(0): Chipset: "virge"
(II) S3VIRGE(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x0000
(II) S3VIRGE(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x0000
(--) S3VIRGE(0): No DDC signal
(II) S3VIRGE(0): I2C bus "I2C bus" initialized.
(II) S3VIRGE(0): I2C device "I2C bus:ddc2" registered at address 0xA0.
(II) S3VIRGE(0): I2C device "I2C bus:ddc2" removed.
(==) S3VIRGE(0): Using gamma correction (1.0, 1.0, 1.0)
(--) S3VIRGE(0): videoram: 4096k
(--) S3VIRGE(0): Detected current MCLK value of 79.943 MHz
(II) S3VIRGE(0): Monitor0: Using hsync range of 30.00-64.00 kHz
(II) S3VIRGE(0): Monitor0: Using vrefresh range of 50.00-120.00 Hz
(II) S3VIRGE(0): Clock range: 20.00 to 270.00 MHz
(--) S3VIRGE(0): Virtual size is 1280x1024 (pitch 1280)
(**) S3VIRGE(0): Default mode "1280x1024": 108.0 MHz, 64.0 kHz, 60.0 Hz
(==) Depth 24 pixmap format is 32 bpp
(II) do I need RAC? No, I don't.
(II) S3VIRGE(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x0000
(II) S3VIRGE(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x0000
(**) S3VIRGE(0): Using FB
(II) S3VIRGE(0): Using XFree86 Acceleration Architecture (XAA)
Screen to screen bit blits
Solid filled rectangles
8x8 mono pattern filled rectangles
CPU to Screen color expansion
Solid Horizontal and Vertical Lines
Offscreen Pixmaps
Setting up tile and stipple cache:
10 128x68 slots
(==) S3VIRGE(0): Backing store disabled
(==) S3VIRGE(0): Silken mouse enabled
(**) Option "dpms"
(**) S3VIRGE(0): DPMS enabled
And from XF86Config:
Section "Module"
Load "extmod"
Load "glx"
Load "dri"
Load "dbe"
Load "record"
Load "xtrap"
Load "speedo"
Load "type1"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
HorizSync 30-64
VertRefresh 50-120
Option "DPMS"
EndSection
Section "Device"
Identifier "Card0"
Driver "s3virge"
VendorName "S3 Inc."
BoardName "86c325 [ViRGE]"
BusID "PCI:0:13:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 1
EndSubSection
SubSection "Display"
Depth 4
EndSubSection
SubSection "Display"
Depth 8
EndSubSection
SubSection "Display"
Depth 15
EndSubSection
SubSection "Display"
Depth 16
EndSubSection
SubSection "Display"
Depth 24
EndSubSection
EndSection
---
Meelis Roos (mroos@linux.ee)
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