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. 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 -- Mateusz K.