On Mon, Nov 18, 2013 at 01:22:20AM +0200, ja...@cieti.lv wrote: > I tried this diff and at least one thing changed -- neverball now works > (previously it immediately hung the GPU on start). There is still corruption > and GPU hanging in chromium. There is corruption in mplayer -vo gl too (and > it is still much slower than it is on 5.4). > > With a lot of help from Stefan Sperling I tried to do experiments. > > Since I am too unskilled I was not able to do it properly and build xenocara > from the same point in time (date-based CVS checkouts do not compile for me)
It's unfortunate that CVS messes up like this :( I just tested date-based checkouts with opencvs and it's also broken. > but I built kernel on 5.3 from 2013-07-06 with just this patch applied: > http://freshbsd.org/commit/openbsd/304417ea27d0874895cc4e65c30324b7bd14ac22 > (as I am 80% sure it's when problems started) and the screen became totally > corrupted in X but computer did not hang. It looked very similar to what is > seen now. If that helps that is all I could find out. Well, that is the patch that requires a newer libdrm to work. It changes the userland<->kernel interface that libdrm is using to talk to the kernel to configure graphics. So unless you also updated libdrm I don't think that it is surprising that graphics stopped working in this configuration. You could try updating libdrm (/usr/xenocara/lib/libdrm) to the same time frame.
