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[Bug 794474] Re: latitude e6420 screen flickering (sandy bridge intel video card)

 

OK, I finally made it work : using the GUI offered by unity, setting the
resolutions I wanted, and not caring that the display was mangled when
it asked me if the display was OK after setting the resolutions... I
checked "yes" even if that was not true, so the config was saved (in
.config/monitors.xml I presume). After a reboot everything was OK, even
after one suspend-to-ram.

I had to edit monitors.xml and change "<primary> no </primary>" to "yes"
on HDMI3 (corresponding to my external display), in order to have the
launcher on my external screen.

One more possibly useful info : I used the read-edid package (and more
precisely the 'get-edid| parse-edid' command) to get the vendor ID of my
laptop's screens :

old one (broken) : SEC
new one (works until now !) : LGD

No idea what SEC stands for, but probably LGD stands for LG ?

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https://bugs.launchpad.net/bugs/794474

Title:
  latitude e6420 screen flickering (sandy bridge intel video card)

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