mirror of
https://github.com/torvalds/linux.git
synced 2024-12-12 22:23:55 +00:00
63 lines
2.6 KiB
Plaintext
63 lines
2.6 KiB
Plaintext
- Start capturing by pressing "c" or by selecting it via a menu!
|
|
|
|
- Start capturing by pressing "c" or by selecting it via a menu!!!
|
|
|
|
- The memory of some S3 cards is not recognized right:
|
|
|
|
First of all, if you are not using XFree-3.2 or newer, upgrade AT LEAST to
|
|
XFree-3.2A! This solved the problem for most people.
|
|
|
|
Start up X11 like this: "XF86_S3 -probeonly" and write down where the
|
|
linear frame buffer is.
|
|
If it is different to the address found by bttv install bttv like this:
|
|
"insmod bttv vidmem=0xfb0"
|
|
if the linear frame buffer is at 0xfb000000 (i.e. omit the last 5 zeros!)
|
|
|
|
Some S3 cards even take up 64MB of memory but only report 32MB to the BIOS.
|
|
If this 64MB area overlaps the IO memory of the Bt848 you also have to
|
|
remap this. E.g.: insmod bttv vidmem=0xfb0 remap=0xfa0
|
|
|
|
If the video memory is found at the right place and there are no address
|
|
conflicts but still no picture (or the computer even crashes),
|
|
try disabling features of your PCI chipset in the BIOS setup.
|
|
|
|
Frank Kapahnke <frank@kapahnke.prima.ruhr.de> also reported that problems
|
|
with his S3 868 went away when he upgraded to XFree 3.2.
|
|
|
|
|
|
- I still only get a black picture with my S3 card!
|
|
|
|
Even with XFree-3.2A some people have problems with their S3 cards
|
|
(mostly with Trio 64 but also with some others)
|
|
Get the free demo version of Accelerated X from www.xinside.com and try
|
|
bttv with it. bttv seems to work with most S3 cards with Accelerated X.
|
|
|
|
Since I do not know much (better make that almost nothing) about VGA card
|
|
programming I do not know the reason for this.
|
|
Looks like XFree does something different when setting up the video memory?
|
|
Maybe somebody can enlighten me?
|
|
Would be nice if somebody could get this to work with XFree since
|
|
Accelerated X costs more than some of the grabber cards ...
|
|
|
|
Better linear frame buffer support for S3 cards will probably be in
|
|
XFree 4.0.
|
|
|
|
- Grabbing is not switched off when changing consoles with XFree.
|
|
That's because XFree and some AcceleratedX versions do not send unmap
|
|
events.
|
|
|
|
- Some popup windows (e.g. of the window manager) are not refreshed.
|
|
|
|
Disable backing store by starting X with the option "-bs"
|
|
|
|
- When using 32 bpp in XFree or 24+8bpp mode in AccelX 3.1 the system
|
|
can sometimes lock up if you use more than 1 bt848 card at the same time.
|
|
You will always get pixel errors when e.g. using more than 1 card in full
|
|
screen mode. Maybe we need something faster than the PCI bus ...
|
|
|
|
|
|
- Some S3 cards and the Matrox Mystique will produce pixel errors with
|
|
full resolution in 32-bit mode.
|
|
|
|
- Some video cards have problems with Accelerated X 4.1
|