Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I am having a really strange issue with my Ubuntu 12.10 computer. I have a computer that is left on 24/7. Lately, after the computer has been on for a while, when I log in to Ubuntu, the GUI is really slow and glitchy. It's as if hardware acceleration is disabled. Unity runs at around 5 fps, and I cant even scroll through websites because of the enormous lag. If I restart the computer, the issue goes away. After a day or so, it comes back! Here's some more info:

Computer specs:

Intel core i5-2500k @ 5ghz (overclock)
24GB DDR3 1333MHz RAM
Dual 60GB SSDS
4 1TB storage/backup HDDs
ASRock Extreme4 Gen3 motherboard
Gigabyte/Nvidia GeForce GTX660 Graphics card - (GPU Clock @ 549MHz | Memory Clock @ 3004MHz)

Tasks: 232 total,   2 running, 230 sleeping,   0 stopped,   0 zombie
%Cpu(s): 53.1 us,  4.2 sy,  0.0 ni, 42.5 id,  0.1 wa,  0.0 hi,  0.1 si,  0.0 st
KiB Mem:  24603584 total, 21437068 used,  3166516 free,  1420912 buffers
KiB Swap:        0 total,        0 used,        0 free,  9695376 cached

  PID USER      PR  NI  VIRT  RES  SHR S  %CPU %MEM    TIME+  COMMAND           
 4023 julian     0 -20 12.5g 3.4g 7200 S 140.5 14.7   8271:18 java              
 1569 root      20   0  282m 118m  30m R  47.6  0.5  97:29.30 Xorg              
15730 julian    20   0  409m  97m  55m S  27.0  0.4   7:58.35 chrome            
32220 julian     0 -20 12.7g 2.4g  13m S   5.7 10.2 120:30.22 java              
 2822 julian    20   0 1578m 199m  56m S   2.3  0.8  87:37.55 compiz            
17448 julian    20   0  940m  82m  29m S   1.0  0.3   0:08.48 chrome            
15692 julian    20   0  784m 144m  48m S   0.7  0.6   0:12.26 chrome            
   16 root      rt   0     0    0    0 S   0.3  0.0   0:00.47 migration/3       
  335 root      20   0     0    0    0 S   0.3  0.0   1:08.60 kjournald         
 2845 julian    20   0 1854m 705m  24m S   0.3  2.9  20:50.03 nautilus          
 2903 julian    20   0  412m  12m 7824 S   0.3  0.1   0:15.90 bamfdaemon        
 2936 julian    20   0  537m  48m  11m S   0.3  0.2  11:34.38 unity-panel-ser   
19249 julian    20   0  510m  18m  11m S   0.3  0.1   0:00.44 gnome-terminal    
20124 root      20   0     0    0    0 S   0.3  0.0   0:00.20 kworker/1:3       
20196 www-data  20   0  228m  10m 2984 S   0.3  0.0   0:00.12 apache2           
    1 root      20   0 24584 2472 1288 S   0.0  0.0   0:00.78 init              
    2 root      20   0     0    0    0 S   0.0  0.0   0:00.01 kthreadd`

julian@julian-desktop:~$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +55.0°C  (high = +80.0°C, crit = +98.0°C)
Core 0:         +39.0°C  (high = +80.0°C, crit = +98.0°C)
Core 1:         +46.0°C  (high = +80.0°C, crit = +98.0°C)
Core 2:         +55.0°C  (high = +80.0°C, crit = +98.0°C)
Core 3:         +45.0°C  (high = +80.0°C, crit = +98.0°C)
share|improve this question
    
Could you do dmesg | tail -n 20 next time it slows down? Also the output of glxinfo | grep render. Edit your question and add the information. –  Braiam Sep 9 '13 at 15:05
add comment

Know someone who can answer? Share a link to this question via email, Google+, Twitter, or Facebook.

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.