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annotate lib/localdisplay.py @ 958:f83d494b0f31

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start buttons+lcd program Ignore-this: 7bcbbbbbc21984988c87a06e1cb582f1 darcs-hash:20150104073406-312f9-0fdaf43c639503fac5b4100dcf0f8ede1463866b
author drewp <drewp@bigasterisk.com>
date Sat, 03 Jan 2015 23:34:06 -0800
parents 4620a5d2f337
children 2f8ba398f958
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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886
2d055bce2e60 Xorg display number fetcher for use by xidle and dpms
drewp <drewp@bigasterisk.com>
parents:
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1 import psutil, os
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2
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3 def setDisplayToLocalX():
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4 """
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drewp <drewp@bigasterisk.com>
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5 set DISPLAY env var in this process to the id of the X process on localhost
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4620a5d2f337 comment
drewp <drewp@bigasterisk.com>
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6
4620a5d2f337 comment
drewp <drewp@bigasterisk.com>
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7 I might need something like xauth merge /run/gdm/auth-for-gdm-xxxxxx/database too
4620a5d2f337 comment
drewp <drewp@bigasterisk.com>
parents: 886
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8 and this isn't automated yet
886
2d055bce2e60 Xorg display number fetcher for use by xidle and dpms
drewp <drewp@bigasterisk.com>
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9 """
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drewp <drewp@bigasterisk.com>
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10 for pid in psutil.get_pid_list():
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11 try:
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12 proc = psutil.Process(pid)
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13 if proc.exe not in ['/usr/bin/Xorg', '/usr/bin/X']:
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14 continue
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15 except (psutil.error.AccessDenied, psutil.error.NoSuchProcess):
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16 continue
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17 display = proc.cmdline[1]
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18 assert display.startswith(':'), display
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19 os.environ['DISPLAY'] = display
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20 break
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21 else:
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22 raise ValueError("didn't find an Xorg process")