(In reply to comment #160) > Typical, it appeared stable through my firefox testing, but if you try > reverting b7565a26401e283df94b68019e8093f8104428f4, I expect the corruptions > to disappear again.
Yep - correct revert of this commit make MAX_VERTEX 1 again producing correct rendering - even thought it's again noticable slower - thus now it's clear why I've considered it usable with MAX 1 before (in my comment 155). So yep - revert & MAX 1 works again - but it's quite slow. Is it now any better to deduce which operation is make such bad memory interaction ? It seems like the 'synchronization' is really needed only at very certain moments - where the GPU is producing memory corruption error on the screen - but how to catch in which moment ? I'm still suspecting some memory layout of those memory object - since when I see corruption - it usually it specific places (i.e. edit of this firefox input widget and just only certain characters at certain positions are render with errors) How can I try to increasing memory alignment ? (i.e. each object only at 16KB boundary?) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1098334 Title: [gen4 sna] Font corruption Status in X.org xf86-video-intel: In Progress Status in “xserver-xorg-video-intel” package in Ubuntu: Incomplete Bug description: After enabling the SNA acceleration method and rebooting, I noticed that graphical glitches appeared in the letters on Chromium's tab bar during the mouse hover animation. I've attached a screenshot illustrating this, particularly with the letter "g" in the screenshot. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.7.0-7.15-generic 3.7.0 Uname: Linux 3.7.0-7-generic x86_64 ApportVersion: 2.8-0ubuntu1 Architecture: amd64 Date: Thu Jan 10 16:00:55 2013 InstallationDate: Installed on 2012-09-24 (107 days ago) InstallationMedia: Kubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120822.2) MarkForUpload: True SourcePackage: xorg UpgradeStatus: Upgraded to raring on 2012-09-25 (107 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
