On Thu, May 28, 2015 at 9:26 AM, M. Fioretti <mfioretti@xxxxxxxxxxx> wrote: > Greetings, > > I have come across a computer running Fedora 20 X86_64 that is > basically unusable. I would really appreciate your help to: > > 1) figure out and fix the current problem (including: would > installing fedora 22 help or make things worse because of > dropped support for some hw component, etc?) > > 2) even more important: help me define a general, systematic procedure > to investigate what exactly causes certain problems on Fedora and Linux > in general, in all > cases like this. I ask because I just realized that I am not > up to date anymore on this particular topic, and it is a general > interset question, isn't it? > > > Now the facts: that computer has a dual core CPU and 8GB of RAM, but it > is so slow that when I open any terminal in X, under any window/desktop > manager, if I write a long command at the prompt, then realize I made a typo > 10 characters before the cursor, and hit backspace, it takes 2/3 seconds > to go back to that point. > > If I open libre office or ANY OTHER text editor, and move the trackball to > select a sentence, > it takes seconds to see it highlighted. If I then click on another part of > the file > to paste the text there, it is another 2 seconds to see the cursor blink in > that new > position. Ditto for scrolling, in ANY program that supports it: press > PageDown, wait seconds > to see the corresponding text. > > My **feeling** is that there is some biiig misconfiguration at the graphic > driver level, > but it's just a feeling. As I said, besides fixing THIS computer, I really > want to refresh all my knowledge on how to investigate properly any case > like this. > > Outputs of lspci, /proc information are below. If I need to run other tests, > just ask. > Any feedback is welcome, thanks in advance, > > Marco Most likely you're using software acceleration (due to poorly supported [by F20] graphics card) with a heavy desktop environment (E.g. GNOME 3). As F20 is nearing end of life (~4 weeks), so I wouldn't waste time trying to fix it. I suggest you download the XFCE live CD (or USB), play around with it, see if things look better. If it does, install F22 with XFCE, and slowly test the different desktop environments (XFCE, GNOME 3, KDE 5, etc) and see what works best. If it doesn't, file a bug report with the complete system configuration; I'd also add the output of glxinfo. - Gilboa -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
