[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
Swizzling bug fixed in the kernel (raring). ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
Anyone other fixes available yet? I also get screen corruption on other desktop environments (xfce mainly), but it took a while of heavy usage on them. It seems to favor corrupting HUD in Precise. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
My suggestions: 1. DebugWait / SwapbuffersWait: create the file /usr/share/X11/xorg.conf.d/20-intel.conf with the following: Section Device Identifier Intel Driver intel Option DebugWait true Option SwapbuffersWait false EndSection 2. Add i915.semaphores=1 to the kernel boot command line in /etc/default/grub/ E.g.: GRUB_CMDLINE_LINUX_DEFAULT=quiet splash i915.semaphores=1 (then run update-grub and reboot). 3. turn off font anti-aliasing, 4. set the DPI for your screen correctly, ^^Unfortunately multiple sub-systems manageo both of those. Suggestions welcome. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
Sitsofe, I experience this problem in Oneiric: cat /proc/version Linux version 3.0.0-19-generic (buildd@vernadsky) (gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3) ) #33-Ubuntu SMP Thu Apr 19 19:05:57 UTC 2012 dpkg -l | grep xserver-xorg\ ii xserver-xorg 1:7.6+7ubuntu7.1X.Org X server dpkg -l | grep intel ii libdrm-intel1 2.4.26-1ubuntu1 Userspace interface to intel-specific kernel DRM services -- runtime ii xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1 X.Org X server -- Intel i8xx, i9xx display driver lspci -nn | grep VGA 00:02.0 VGA compatible controller [0300]: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02) cat /proc/version I can easily reproduce the problem instantly after boot when running bonnie++ benchmarks while switching between multiple X servers via Ctrl/Alt F7-F12, given the following lightdm config (I am logged into one session and the other sessions just show the greeter): cat /etc/lightdm/lightdm.conf [LightDM] greeter-user=lightdm seats=Seat:0 Seat:1 Seat:2 Seat:3 [SeatDefaults] allow-guest=false greeter-hide-users=true greeter-session=lightdm-gtk-greeter user-session=xubuntu [Seat:0] user-session=xubuntu autologin-user= [Seat:1] user-session=xubuntu autologin-user= [Seat:2] user-session=xubuntu autologin-user= [Seat:3] user-session=xubuntu autologin-user= [Seat:4] user-session=xubuntu autologin-user= [Seat:5] user-session=xubuntu autologin-user= [XDMCPServer] enabled=true In case I swapoff -a before starting the test, then the problem seems to be gone though. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
I get font corruption in an i915 both with 512M and after upgrade to 2G memory and no swap in either case. Only adding the 'debugwait' fix makes the font corruption go away for me in either Unity or Cinnamon desktop. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
Rui: You're welcome. I don't know if running with less swap will help but it is interesting that no swap seems to hide the problem completely. Can people the other people subscribed to this bug also reproduce this problem when using a LiveCD and do they find that running a system with swap disabled prevents the problem too? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
(Subscribing Rui Moreira) Rui: Can you reproduce this if you immediately disable swap after you finish booting (i.e. sudo swapoff -a ) Also, how much memory do you have in the machine? To anyone who stumbles on this bug report: If you are posting comments on launchpad bug reports that affect you, please think about subscribing yourself/pressing the this bug affects me too link - someone else might need to follow up on your comment :-). Thank you! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
Hi, Thanks for the prompt help. I confirm that after 'sudo swapoff -a' the problem is gone. System info shows memory size 741MB. I uncovered the PC and it has 2X256MB+2X128MB. So, running Ubuntu with a lower swap size might help until there is a final solution for this? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
I'm experiencing this problem since I upgraded from 11.04 to 11.10. I thought it had been a bad upgrade and I then did a fresh install and the problem remains. I've also experienced this on both Kde and Gnome sessions. Sessions without acceleration like Ubuntu 2D are not affected. My VGA card is : VGA compatible controller: Intel Corporation 82915G/GV/910GL Integrated Graphics Controller (rev 04) Note: I'm not going back to Windows over this! I'd rather poke myself with a burning stick. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
00:02.0 VGA compatible controller [0300]: Intel Corporation 82915G/GV/910GL Integrated Graphics Controller [8086:2582] (rev 04) so yeah, it's not *exactly* the same hardware as per the bug report but it is exactly the same symptom and probably similar enough causes... For full confirmation someone would have to test on the exact system... mine's 910 vs. 950 GMA 82915 vs. 82945 - anyhow, it is what it is and I hope it is still helpful :) Mine usually started to corrupt within 20 mins but varied with what I was doing - java game opening multiple tabs, etc... If I wasn't doing much (surfing, checking e-mail) it would go much longer -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
** Summary changed: - [i945] Heavy screen and font corruption on GMA950 + [i945] Heavy screen and font corruption when free memory is low on GMA950 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 820881] Re: [i945] Heavy screen and font corruption when free memory is low on GMA950
zemerica: OK that confirms the other poster's comments. What is the output of /sbin/lspci -nn | grep VGA on that machine and roughly how many minutes did it take before the corruption appeared? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/820881 Title: [i945] Heavy screen and font corruption when free memory is low on GMA950 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/820881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
