Dear Debian folks,
Am Dienstag, den 24.07.2012, 14:31 +0200 schrieb Paul Menzel: […] > Am Dienstag, den 24.07.2012, 13:24 +0200 schrieb Paul Menzel: > > […] > > > Am Dienstag, den 24.07.2012, 12:29 +0200 schrieb Paul Menzel: > > > unarchive 614296 > > > reopen 614296 > > > found 614296 2:2.19.0-4 > > > notforwarded 614296 > > > quit > > > > > > Am Sonntag, den 25.09.2011, 14:08 +0200 schrieb Paul Menzel: > > > > reopen 614296 > > > > quit > > > > > > > > Am Sonntag, den 25.09.2011, 13:44 +0200 schrieb Julien Cristau: > > > > > On Sun, Feb 20, 2011 at 22:35:27 +0100, Paul Menzel wrote: > > > > > > > > > > > Package: xserver-xorg-video-intel > > > > > > Version: 2:2.14.0-4 > > > > > > Severity: important > > > > > > User: debian-eeepc-de...@lists.alioth.debian.org > > > > > > > > > > I am sorry for not being able to give a better description than > > > > > > writing that with the latest upgrades in Sid/unstable to > > > > > > DebPkg:xserver-xorg-video-intel 2.14.0-? and > > > > > > DebPkg:linux-image-2.6.37-1-686 in for example the LXTerminal often > > > > > > the 2 and 4 are not completely drawn, i. e. like a rubber was used > > > > > > horizontally in the middle of the characters. > > > > > > > > > > > > Additionally there are corruptions browsing the Web using Midori. > > > > > > > > > > According to the linked upstream report this was probably a kernel bug > > > > > and got fixed, so closing. > > > > > > > > Unfortunately the problem is not fixed. I am using a current Debian > > > > Sid/unstable installation with Linux 3.0.0-1. > > > > > > > > The upstream report seems to have the same issues but with different > > > > hardware. > > > > > > > > I will try to follow up on this report and open a new upstream report in > > > > the next month. > > > > > > As written last September (2011) I can still reproduce this error. > > > Unfortunately the bug was archived because I did a reply to all and did > > > not remove »done« for <614296-d...@bugs.debian.org>. Therefore I am > > > unarchiving this report to reopen it properly. > > > > > > Obviously the upstream report is for a different issue and therefore I > > > am removing that too. > > […] > > > > PS: After this, I will merge this with #675734 [1] and hopefully find a > > > solution with the reporters there. > > reading up on all the links regarding this report, this is what I found. > > First the work around. Using the SNA backend(?) of the Intel DDX > (`xserver-xorg-video-intel`) as suggested by Chris Wilson on #intel-gfx > by creating `/etc/X11/xorg.conf.d/99-local.conf` with the following > content > > Section "Device" > Identifier "Device0" > Driver "intel" > Option "AccelMethod" "sna" > EndSection > > the rendering corruptions do not occur anymore on my Eee PC 701 4G. Only > once I saw some kind of smearing(?) – letters not rendered sharply but > blurry – > > Chris Wilson also suggested to try the options > > Option "DebugFlushBatches" "1" > > and > > Option "DebugFlushWait" "1" Sitsofe pointed out the name of this option is `DebugWait` [7]. Option "DebugWait" "1" > together and separately with the default backend (non SNA). But I did > not try those. Maybe someone else has some time to do so and capture all > relevant log files as by turning on log level debug logged to > `/var/log/Xorg.0.log` and to provide all information listed at their Web > page »How to file a good bug report« [2]. Encouraged by Sitsofe’s comment [7] I tried just Option "DebugWait" "1" and at least in this session I did not see any corruptions. Could you please confirm this on your systems too? > This would be especially desirable to fix the issue with the old backend > because SNA will not be enabled by default I guess and the current way > is difficult to do for normal users. > > Also we need to consider that upstream does not maintain older versions > and the one in Debian Wheezy/testing is already superseded by version > 2.20.1 [3] which will not be packaged for Debian Sid/unstable until > after the release and will not be allowed for Debian Wheezy due to the > freeze (I think). Therefore testing newer versions is also difficult. > > Now some information regarding other resources concerning this issue. > After reproducing this issue with Fedora I created ticket #704959 at the > Red Hat Bugzilla [5] and Sitsofe Wheeler informed me about the reports > at the freedesktop.org Bugzilla #36326 [4] and at Launchpad #745608 [6]. > > Although the freedesktop.org Bugzilla ticket #36326 is named > > [915GM] Characters sometimes have horizontal lines through them (glyph > font corruption) > > some people also report the same problem with 945GM/GMS (and others do > not :/). > > Samual and Axel, maybe you can subscribe to the freedesktop.org Bugzilla > ticket #36326. I believe the upstream developers will be the only ones > being able to fix this issue properly. > > But first I hope the SNA fix will work for you too and I did not mess > anything up with this merge. Thanks, Paul > > > [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=675734 > [2] http://intellinuxgraphics.org/how_to_report_bug.html > [3] http://lists.freedesktop.org/archives/xorg/2012-July/054916.html > [4] https://bugs.freedesktop.org/show_bug.cgi?id=36326 > [5] https://bugzilla.redhat.com/show_bug.cgi?id=704959 > [6] > https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/745608 [7] https://bugs.freedesktop.org/show_bug.cgi?id=36326#c50
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