Hi Alain, > I have been incolved with cutemouse, and I remember this: version 1.9x > uses BIOS to access PS/2 mouse, version 2.x uses direct hardware access. > Both version are suposed to be identical in all other matters.
No, version 2.1 uses BIOS again (thanks to Konstantin from Deskwork.de) and only 2.0 and 2.1 versions do support mice with a scroll wheel. Interestingly, both "controller programming" and "BIOS" methods to do the wheel detection handshake sometimes crash the keyboard both with PS/2 and USB mice, and modern BIOSes somehow make USB mice so PS/2-ish that even ctmouse 2.0 can detect them. I think the safest method is to use 1.9 or 2.1 with /O switch (no wheel) for universal boot disks and try 2.1 first, 2.0 second for wheel support. Please let me know which version works better for you :-). > > when I run ctmouse v2.1beta in Qemu, it says > > "Installed at COM1 (...) in Mouse > > Systems mode" and the mouse does NOT work inside the emulator. Mouse Systems (Genius) Mode means "assume that a serial port has a mouse" because Genius mice have no install check. This is why the /Y switch should be used to disable Mouse Systems mode. Only very old mice used this mode. > > If I try "ctmouse /P", it displays "Error: device not found" This is "force PS/2" (ignore serial ports) mode. > > The old ctmouse v1.91a does not have such a problem, it detects > > a PS/2 mouse and works in Qemu. After some off-list discussion, we found out that the QEMU BIOS has a bug (can anybody tell me if Bochs BIOS has the same bug?). The problem is that QEMU does react on the "enable scroll wheel" sequence and then reports "scroll mouse present". But if you then try to enable the scroll mouse communication protocol, you get an error from the BIOS. So in the end, ctmouse fails to connect. With the current version of ctmouse, the solution is to use: ctmouse /O /Y /O - old: disable wheel detection (can improve PnP handling) /Y - do not try Mouse Systems mode for non-PnP devices This works for example with ctmouse21b3 from: > www.coli.uni-saarland.de/~eric/ctmouse21b3.zip Sorry about the unlinked URL, I am planning to make a new version with better hotplugging and then make this the "official 2.1", so the 21b3 version is only one of the betas for that. Eric ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
