On 21/11/2013 17:10, Mateusz Kowalczyk wrote: > Greetings, > > I spent a chunk of yesterday updating world on my machines (2 file > servers and 1 netbook) and with some effort, the updates went through. I > had to go out today so I rebooted my netbook and I started noticing > weird graphical glitches in certain applications, as if parts of the > screen weren't updating, namely in urxvt and emacs. In urxvt, my shell > prompt seems to not render the cursor and often keeps the letters I > remove still on the prompt (only graphically, they aren't actually > there). This is extremely annoying. > > It's also terrible in emacs: cursor sometimes doesn't get rendered and I > get tons of artefacts from different buffers when I switch or from text > I was editing. You can find an example image of such glitches in emacs > at [1]. This is absolutely tragic for me as I spend majority of my time > in emacs. I'd like to note that I'm running emacs in a graphical frame > and not in a terminal.
A quick note to say that you are not alone, I get this as well since about 6 weeks ago (a ~amd system). So it's not something you and just you managed to do, I got it as well. In my case it's as if the system's idea of what is on the screen is off by one row of pixels. I get a stray row of dots at the top of lines that correspond to the risers of glyphs on the previous line, and new underscores don't show up until I enter a newline. This is a mostly KDE system using konsole, so it's not the terminal emulator or editor that's the root cause. > > I'm unsure whether this is the case in my other machines as they are > headless and don't even have X. > > The issue is weird however: firefox and thunderbird are fine, they don't > suffer any such glitches. I can also make the glitches go away by > ‘refreshing’ my screen with use of xrandr, such as telling xrandr to > change my settings to what they currently are, which should technically > be a no-op but well, it seems that it does it anyway. > > Oh, I should mention that I did not update my kernel > Linux misaki 3.9.0-rc6 #1 SMP Tue Apr 9 10:51:07 BST 2013 i686 Intel(R) > Core(TM)2 Duo CPU L7700 @ 1.80GHz GenuineIntel GNU/Linux > > I am truly lost as to how to troubleshoot this. I provide links to some > of my system information below: > > http://fuuzetsu.co.uk/misc/genlop > http://fuuzetsu.co.uk/misc/emergeinfo > > Please feel free to request any information. I hope someone can aid me > as this basically renders my shell and emacs useless and they are the > two things I absolutely need. Even getting my logs was difficult with > such broken setup. > > Thanks. > > [1]: http://fuuzetsu.co.uk/images/badrendering.png > -- Alan McKinnon alan.mckin...@gmail.com
