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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [hsw] Cycling between GL/X rendering causes a hard hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63914#c43">Comment # 43</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [hsw] Cycling between GL/X rendering causes a hard hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63914">bug 63914</a>
from <span class="vcard"><a class="email" href="mailto:ben@bwidawsk.net" title="Ben Widawsky <ben@bwidawsk.net>"> <span class="fn">Ben Widawsky</span></a>
</span></b>
<pre>Running intel-gpu-top + kde, I can now hit it quite fast:
#!/bin/bash
# demonstration of X server / OpenGL lockup on SLED SP3 Beta 2
# with Haswell graphics. X server needs to be using "intel" driver.
export LIBGL_DRIVERS_PATH=/home/test/mesa/lib/
prog1=hypertorus
prog2=antmaze
prog3=phosphor
konsole --noclose -e sudo ./intel-gpu-tools/tools/intel_gpu_top
cd /usr/lib64/xscreensaver
vblank_mode=0 ./$prog1 -geometry 1280x1024+10+10 -delay 0 &
sleep 5
vblank_mode=0 ./$prog2 -geometry 1024x768+25+25 -delay 0 &
pid1=$!
mode=0
while true
do
if [ $mode -eq 0 ]
then
vblank_mode=0 ./$prog3 -geometry 1024x768+425+25 -delay 0 &
pid2=$!
else
vblank_mode=0 ./$prog2 -geometry 1024x768+25+25 -delay 0 &
pid2=$!
fi
mode=$(( ( $mode + 1 ) % 2 ))
# echo $mode
sleep 10
kill $pid1
pid1=$pid2
done</pre>
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