Įven stranger is: I tried that several times - monitor switch off/on - and suddenly it wouldn't lead to a blank screen any more =:-O So I had a look whether this is also true in my situation but xfsettingsd was still happily running while the screen refused to come back on.ĭon't know exactly why (maybe the anger at xfsettingsd to fail somewhere -)) but I just killed the running instance and was completely stumped to see the display turning on again. I also stumbled upon the fact that there must be something weird with xfsettingsd: at least under some circumstances this daemon was said to be responsible for leaving a blank screen while crashing when the monitor gets switched on. I'm running Xubuntu 14.04 on a Dell Optiplex 7010 with a Radeon HD 7570 VGA card that is attached to an LG ultrawide monitor (2560x1080) via DisplayPort, my desktop is XFCE4.Īs this problem is very annoying I googled quite a bit and found this and that but nothing really helped. I also have the problem with the blank screen after monitor power cycle.
#Amd firepro w4100 3 monitors upgrade
UpgradeStatus: No upgrade log present (probably fresh install) Package: xfce4-power-manager 1.2.0-3ubuntu4 LiveMediaBuild: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) This issue does not occurs on another computer (with nVidia gfx card+Dell U2713HM+DVI cable) The monitor is connected with a displayport cable.Įnable or disable the displayport 1.2 setting of the monitor doesn't change anything. My graphics card is Intel HD4600 and my monitor is Dell UP3214Q. I tried xset dpms force off/suspend/ standby, the monitor works fine after resuming. This never happened on 13.10.īooting from xubuntu 14.04 livecd or a clean installion of xubuntu 14.04 gives the same problem. I have to restart x to bring it back to work. When I turn the monitor off and on, it only shows "no input signal".
I upgraded my xubuntu 13.10 to 14.04 recently.