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Based on notaweblog.php by joshua stein

[ ] Thursday, 21 July 2011 [ ]

Muppetry

Updated my Thinkpad X41 Laptop to OpenBSD 5.0-beta, used sysmerge to update /etc and then when I tried to start X it failed with:

(EE) No devices detected.
Fatal server error: 
no screens found

This was due to OpenBSD not allowing X to access the memory and was fixed by uncommenting the sysctl.conf 'machdep.allowaperture=' setting, and was the first line in the Xorg.0.log file:

(WW) checkDevMem: failed to open /dev/xf86 and /dev/mem
(Operation not permitted)
Check that you have set 'machdep.allowaperture=1'
in /etc/sysctl.conf and reboot your machine
refer to xf86(4) for details


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