On Mon, Jun 20, 2016 at 07:02:35AM +0200, anax wrote: > Try with CTRL-ALT-F2 (go to the console) and CTRL-ALT-F1 (go back to > the X-Window). This may help... > > suomi oh, sorry, I did try that, but failed to mention it. No, it makes no visible difference at all. > > On 06/20/2016 03:10 AM, Fred Smith wrote: > >Hi all! > > > >I'm running an up to date Centos-7 on my Acer Aspire One netbook. have > >been for, well, ever since C7 was released. > > > >Just had an event today that also happened 2 or 3 times with earlier > >systems installed, but I never pursued it. > > > >What happens is that suddenly while working away on the desktop the > >display suddenly goes black... not black as in turned off, I can see > >that the backlight is still on, but no image is displayed. > > > >Nothing I can do fixes it except a reboot. I've tried CTRL-ALT-BKSP, > >CTRL-ALT-DEL, alt+printscreen+r+e+i+s+u+b. none of them do anything > >noticeable. > > > >I've been looking at system logs and don't find anything that gives > >me a clue what is going wrong when that happens. > > > >neither dmesg, /var/log/Xorg*, nor /var/log/messages contins much. I've > >tried digging thru "man journalctl" and ultimately reading thru the > >output of journalctl with no arguments. > > > >Can anyone of you provide further hints on what I should be looking > >for or at? > > > >thanks! > > > >Fred > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos -- ---- Fred Smith -- fredex at fcshome.stoneham.ma.us ----------------------------- "For the word of God is living and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart." ---------------------------- Hebrews 4:12 (niv) ------------------------------