Hi On Thu, May 18, 2023 at 10:45 AM Anuj Phogat <anuj.pho...@gmail.com> wrote: > > On Sat, May 6, 2023 at 9:04 AM Alan Coopersmith > <alan.coopersm...@oracle.com> wrote: > > > > On 5/5/23 16:07, Anuj Phogat wrote: > > > Thanks for the quick response Adam. I've seen this behavior across > > > multiple > > > graphics applications > > > and graphics drivers. This is an extreme use case I'm trying out. So, > > > there's a > > > possibility of this use > > > case not being handled correctly by any of the applications or graphics > > > drivers. > > > But I also see some basic X functionality, like closing the window using > > > the "x" > > > button, not working > > > properly with windows opened past the 256 limit. This happens with a > > > modified > > > limit of 512. I had to > > > use xkill to close those windows. Any thoughts about this? > > > > Closing the window with the "x" button is a function of the window manager. > > Does the window manager you are using assume the number of X clients is > > limited to 256? That xkill works suggests the X server is handling it > > correctly. > Alan, I took the window manager out of the equation by running multiple > instances of vkcube with Xorg without running any window manager. > Xorg.0.log file does show a log about set max clients through a .conf file: > (**) Option "MaxClients" "512" > > But, I start seeing below error messages at the end of the log file once > the number of vkcube instances go past 256: > "_XSERVTransSocketUNIXAccept: accept() failed" > > Seems like the modified max clients limit of 512 is not getting configured > correctly in X. > > What can I do to fix / debug this error ?
I didn't find a mention of the actual version of the Xserver you're running (not knowing what Ubuntu ships), but this may be relevant for your issue: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1310 Fixed with: https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/937 And backported to the 21.1 branch with: https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/953 HTH Cheers Olivier