<div class="gmail_quote">On Mon, Jan 18, 2010 at 1:53 AM, Dotan Cohen <<a href="mailto:dotancohen@gmail.com">dotancohen@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Often, my Kubuntu 9.10 system slows to a crawl. When this happens, Xorg is usually the culprit: top - 10:51:32 up 2:03, 2 users, load average: 0.72, 0.49, 0.29 Tasks: 168 total, 2 running, 166 sleeping, 0 stopped, 0 zombie Cpu(s): 31.1%us, 7.9%sy, 0.0%ni, 61.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 2060628k total, 1631280k used, 429348k free, 1132k buffers Swap: 2931852k total, 0k used, 2931852k free, 692632k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1206 root 20 0 526m 157m 19m S 45 7.8 26:22.25 Xorg 1756 dotancoh 20 0 472m 240m 24m S 18 11.9 29:01.06 firefox 1632 dotancoh 20 0 244m 28m 20m S 7 1.4 8:59.91 kwin What is Xorg doing? How can I diagnose this? Thanks! </blockquote><div> I've seen similar symptoms on a box with an older ati video card. I assumed it's something quirky with the card or driver, and haven't gotten around to digging into this problem The box is a half hour drive from here. If anyone is interested I can check the exact model, etc., next time I visit there. </div></div> -- Drew Einhorn