skipped... >>this NoAccel bug is reproducible: X11 can blacks after first time i switching >>consoles, sometimes - after 10 times, sometimes - even after 20 times. >>looks like (available?) agp memory amount determines this... maybe not... >> >>and i think this is a common bug for accel and non-accel setups: it doesn't >>matter in the accel setup because the ring buffer bug takes precedence. >> >>and this is common bug for linux and bsd: after the paranoid console >>switching, 4.3.0 under linux also blacks its console out. but there is >>no ring buffer bug as i mentioned before. >> >>this "blacking" in non-accel looks like the pipe just deattaching from the >>driver (or restoring its state incorrectly), so i can't see anything on the >>X's tty while X runs completely normally (i.e. no lockups) and allows me to >>switch to completely normally working text ttys. > > Does further switching give you a working XFree86 display again? no. once "blacked" it cannot be restored to normal operation. until i reboot the box... > What happens if you exit that XFree86 session and restart XFree86? it works fine if i just sequentially shutdown the X and restart with no console switching. i have done 20-30 times like this with NO problem. the "blacking" problem arise only when i try to switch consoles. even on 4.3.99.14... > FWIW, when I was working in the driver, I wasn't able to reproduce any > switching-related problems with the hardware I had and the 4.3 version on > Linux, even after literally hundreds of switches. as i said before, linux shows NO ring buffer lockup, but "blacking" problem exist on linux running 4.3.0. > I'm pretty much out of suggestions, short of doing some very detailed > tracing/debugging, or rewriting the mode handling code in the driver to > avoid the video BIOS. ehh... i am running out too and really confused :( but i will try to find out more i830 hardware for tests to ensure what there is no bios/hardware problem... _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86
