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Mir Now Has DPMS Power Management Support

Ubuntu

Published on 07 September 2013 05:26 PM EDT
Written by Michael Larabel in Ubuntu
14 Comments

Support was committed to Mir on Friday for handling Display Power Management Signaling (DPMS) so that monitors will be able to enter down their power-down/sleep state.

While the Ubuntu 13.10 release is only one month away, a Mir Display Server feature not arriving until yesterday was support for DPMS. Display Power Management Signaling is the VESA standard for GPUs and monitors to communicate about display power savings, like putting the monitor to sleep after it's been idling for a certain period of time.

When using XMir with the unity-system-compositor on Ubuntu 13.10, the display would never be put to sleep due to DPMS not being implemented, per this bug report. Fortunately, that's resolved with Mir Revision 1054. Adding a DPMS configuration API to Mir also bumped the client library version to libmirclient3.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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