merike@alw.nih.gov (Merike Kaeo) (03/08/91)
A friend is posting this for me since I don't have access to a news
server. Please respond via email to "shaffer@achilles.ctd.anl.gov".
I have a program running on an IBM RS/6000 that I need to display
on a Sun. The program is apparently not compatible with the X11R4
version of twm. When I display on the IBM (X11R3 and mwm) it works
fine. When I display on the Sun with no window manager it works fine.
But when I display on the Sun using X11R4 and twm the program crashes
with the following error message.
X Protocol error detected by server: BadAccess, attempt to access
private resource denied
Failed request major op code 28 (X_GrabButton)
Failed request minor op code 0
ResourceID 0x900020 in failed request
Serial number of failed request 484
Current serial number in output stream 489
Using bug compatibility mode does no good. My question...does anyone
know where I can (at reasonable or no cost) get a window manager that
might work? Like mwm or an old twm. Are there any public domain
window managers that I could try? Is there another way to fix this
problem.
mike
shaffer@achilles.ctd.anl.govmouse@lightning.mcrcim.mcgill.EDU (der Mouse) (03/09/91)
> I have a program running on an IBM RS/6000 that I need to display on > a Sun. The program is apparently not compatible with the X11R4 > version of twm. When I display on the IBM (X11R3 and mwm) it works > fine. When I display on the Sun with no window manager it works > fine. But when I display on the Sun using X11R4 and twm the program > crashes with the following error message. > X Protocol error detected by server: BadAccess, attempt to access private resource denied > Failed request major op code 28 (X_GrabButton) > ResourceID 0x900020 in failed request From the protocol document, describing the GrabButton request: An Access error is generated if some other client has already issued a GrabButton request with the same button/key combination on the same window. When using AnyModifier or AnyButton, the request fails completely (no grabs are established), and an Access error is generated if there is a conflicting grab for any combination. Checking the MIT R4 source gives me the impression that this is the only way to get a BadAccess error. (As far as I can see the "ResourceID" in the error you got is pretty much meaningless.) So your program is trying to issue a grab that conflicts with twm, probably a grab on the root window. It strikes me as antisocial for any program except a window manager (or similar program) to set up a passive grab on the root; I would prefer to fix the guilty program. If it *is* supposed to set up such a grab, you will have to configure either it or twm to avoid doing the problematic grab - preferably, persuade it to grab some other button or with some other modifier combination. der Mouse old: mcgill-vision!mouse new: mouse@larry.mcrcim.mcgill.edu