Subject: Video corruption with VIA CLE266
To: None <tech-x11@netbsd.org>
From: Stephen Borrill <netbsd@precedence.co.uk>
List: tech-x11
Date: 08/01/2005 13:40:33
I'm trying to get X working on a mobo with embedded VIA CLE266 graphics
(it's not an Epia, but it's similar). With NetBSD 2.0.2 and 3.0_BETA (i.e.
XF86 4.4.0 and 4.5.0), I see a video corruption problem.
With NoAccel=False (default), large black bands appear, ghost windows
appear when windows are moved and the title bars in TWM have transparent
sections. With NoAccel=True, this corruption disappears, but a single
black line appears that corrupts any window beneath it. The pointer is
often corrupted too. With HWCursor=False and SWCursor=True, the thin line
and pointer corruption are fixed. i.e. the corruption can be worked around
at the expense of performance.
I had most success with 3.0_BETA. It fixes the corruption of the text
consoles reported elsewhere. It also detected modes correctly. With 2.0.2
modes weren't found and I had to hardwire refresh rates to get anything.
This is all using the via driver, I was unable to get the vesa driver to
do anything sensible (with 2.0.2 it never found any modes, IIRC and with
3.0_BETA it cleared the screen with a block cursor in the top left and the
console could no longer be switched).
Any suggestions on how to fix the corruption (besides these workarounds)?
XF86Config here:
Section "ServerLayout"
Identifier "XFree86 Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
RgbPath "/usr/X11R6/lib/X11/rgb"
ModulePath "/usr/X11R6/lib/modules"
FontPath "/usr/X11R6/lib/X11/fonts/misc/"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo/"
FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
FontPath "/usr/X11R6/lib/X11/fonts/CID/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"
EndSection
Section "Module"
Load "extmod"
Load "glx"
Load "dbe"
Load "record"
Load "xtrap"
Load "type1"
Load "speedo"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "keyboard"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "wsmouse"
Option "Device" "/dev/wsmouse"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Device"
### Available Driver options are:-
### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
### [arg]: arg optional
#Option "A2" # [<bool>]
Option "NoAccel" "True" # [<bool>]
Option "HWCursor" "False" # [<bool>]
Option "SWCursor" "True" # [<bool>]
#Option "ShadowFB" # [<bool>]
#Option "Rotate" # [<str>]
#Option "UseBIOS" # [<bool>]
#Option "VideoRAM" # <i>
#Option "ActiveDevice" # [<str>]
#Option "LCDDualEdge" # [<bool>]
#Option "BusWidth" # [<str>]
#Option "Center" # [<bool>]
#Option "PanelSize" # [<str>]
#Option "TVDotCrawl" # [<bool>]
#Option "TVType" # [<str>]
#Option "TVOutput" # [<str>]
#Option "TVVScan" # [<str>]
#Option "TVHScale" # [<str>]
#Option "TVEncoder" # [<str>]
#Option "Refresh" # <i>
#Option "DisableVQ" # [<bool>]
#Option "DisableIRQ" # [<bool>]
#Option "Cap0Deinterlace" # [<str>]
#Option "Cap1Deinterlace" # [<str>]
#Option "Cap0FieldSwap" # [<bool>]
#Option "DRIXINERAMA" # [<bool>]
Identifier "Card0"
Driver "via"
VendorName "Unknown Vendor"
BoardName "Unknown Board"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 16
SubSection "Display"
Viewport 0 0
Depth 1
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 4
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 8
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 15
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
Modes "1280x1024" "1024x786" "800x600" "640x480"
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
--
Stephen