bjhkjhkrdjbv wrote:Mint 17, I want to keep the monitor configuration (resolution, refresh rate) and the dual screen configuration (LCD left of CRT, no mirroring...) and do not want the system to autodetect the capabilities of the monitors (which it gets completely false) at startup and I do also not want the system to react to the fact that the CRT is off most of the time (only on when I use it). My graphics card is radeon 3450. I have a script that sets the resolutions right bypassing the control panel but the system always resets them at next restart because it thinks those monitors cannot do these resolutions. I get an error message how the monitor configuration could not be restored.
I'm no expert but this works for me on a single monitor and may help if you have found and are using correct XRANDR newmode but losing your settings on reboot - I haven't done dual screen but seems likely you could enter settings for each screen separately in the .xprofile script. I made hidden files visible, created home/mint/.xprofile as a new empty text file. Pasted the xrandr sequence into the file, as is. Right clicked to Properties > Permissions and checked Allow Executing File as a Program.
You may be able to google .xprofile for a dual monitor arrangement.viewtopic.php?f=90&t=172967
When I reboot, it starts to "autodetect" but you see the cursor shrink when it runs .xprofile and I get the 1900 X 1200 that Mint fails to detect - I always test these things on a persistent Live USB before risking my hard drive installations. Good luck,
Test driving Mint 17 Cinnamon via Persistent Live USB on a W7 Lenovo desktop with peripherals, and a W10tp Dell laptop. Dual booting Mint 16 XFCE with W7 on an Acer netbook, testing Live M17 XFCE. Considering the M17.1 point releases for installation.