Suspend
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(Difference between revisions)
m (Created page with '== How to suspend under linux == <source lang="bash"> #!/bin/sh # discover video card's ID ID=`lspci | grep VGA | awk '{ print $1 }' | sed -e 's@0000:@@' -e 's@:@/@'` # securel…') |
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<source lang="bash"> | <source lang="bash"> | ||
#!/bin/sh | #!/bin/sh | ||
+ | |||
+ | # ensure that we are root | ||
+ | if [ `whoami` != "root" ]; then | ||
+ | sudo $0 | ||
+ | exit 0 | ||
+ | fi | ||
# discover video card's ID | # discover video card's ID |
Revision as of 02:06, 24 January 2011
How to suspend under linux
#!/bin/sh # ensure that we are root if [ `whoami` != "root" ]; then sudo $0 exit 0 fi # discover video card's ID ID=`lspci | grep VGA | awk '{ print $1 }' | sed -e 's@0000:@@' -e 's@:@/@'` # securely create a temporary file TMP_FILE=`mktemp /var/tmp/video_state.XXXXXX` trap 'rm -f $TMP_FILE' 0 1 15 # switch to virtual terminal 1 to avoid graphics # corruption in X chvt 1 # write all unwritten data (just in case) sync # dump current data from the video card to the # temporary file cat /proc/bus/pci/$ID > $TMP_FILE # suspend echo -n mem > /sys/power/state # restore video card data from the temporary file # on resume cat $TMP_FILE > /proc/bus/pci/$ID # switch back to virtual terminal 7 (running X) chvt 7 # remove temporary file rm -f $TMP_FILE