[EdLUG] Graphics issues

Edinburgh Linux Users Group edlug at lists.edlug.org.uk
Thu Nov 10 23:03:41 UTC 2016


Hi,

I'm running Linux Mint 18 Cinnamon on a Dell laptop, and have trouble with
my (intel) graphics card. I want my screen resolution to be different to
the default, but any changes I make (with xrandr for example) get reset
after a restart or even a screen lock.

So I made a script to set the resolution I want using xrandr and run it on
startup, but have to run it again after a screen lock.

Also, sometimes the screen is split into 4 after I unlock (like a partially
zoomed out view of 4 desktops) and everything is unresponsive and I have to
reboot with the power button, which has caused me to lose work.
Fiddling about with the screen resolution or plugging into external outputs
can also cause the thing to freeze.

I filed a bug for Linux Mint, and also asked on the Mint forums, but didn't
get very far.

Then I tried creating an xorg.conf file using X -configure in recovery
mode, but get an error:

"Number of created screens does not match number of detected devices."

And can't seem to find my way past that, really not finding much on google,
as it all seems to be people setting up second monitors, or who already
have an xorg.conf file.

I also tried to set GRUB_GFXMODE in the grub, but this seems to have no
effect (should it even?)

So, what I'm wondering is.. Should I be creating an xorg.conf in the first
place? If so, how can I do that given that I can't run X -configure? If
not, what should I do? I can't have a system that forces me to reboot every
5 times I unlock the screen (gross guesstimate)

I'm new to Linux btw. Any pointers or suggestions most welcome!

Many thanks,

Andrew
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