[Bug 91211] intel_backlight dims on switching to VT from X

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=91211

--- Comment #4 from gotyaoi at hotmail.com ---
I just turned on debugging (hattip to Aaron), and the results are as follows.
Very odd looking. I switched to the VT, waited a few seconds and then switched
back, and it looks like two things fiddle with the brightness after switching,
but only one on going back

[  119.717467] [4425] brightness_store: backlight: set brightness to 0
[  120.191197] [4425] brightness_store: backlight: set brightness to 1054
[  127.636070] [4425] brightness_store: backlight: set brightness to 1054

process 4425 is X, ps -ef output:

root      4425  4419  0 22:28 tty7     00:00:03 /usr/bin/X -nolisten tcp -br
-deferglyphs 16 vt07 -auth /var/run/slim.auth

I'll give the patch a try soon and report back.

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