23740 2010-07-07 20:26:53 +0400 blanks the screen in graphics mode "forever" at random moments on intel (i915 driver) 2010-08-09 15:52:10 +0400 1 1 3 Distributions Branch 5.1 kernel-modules-drm-std-def unspecified all Linux NEW P3 normal --- 23739 23850 1 imz silicium qa-5.1 oldest_to_newest 110433 0 imz 2010-07-07 20:26:53 +0400 The following problem can also be considered as a problem of the kernel: because even after restarting X, the screen stays blank. So, this means, the kernel doesn't provide a clean state for the new, independent X process. The kernel could take care of providing a clean graphics state for new Xs. +++ This bug was initially created as a clone of Bug #23739 +++ Created an attachment (id=4453) /var/log/Xorg.0.log.old when this happens xorg-drv-intel-2.4.3-alt0.M41.1 # uname -a Linux localhost.localdomain 2.6.30-std-def-alt15 #1 SMP Mon Dec 14 08:45:48 UTC 2009 i686 GNU/Linux # lspci | fgrep -i vga 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) # At random moments (often when opening a new page in chromium-browser-6.0.401.0-alt1.r47010), the screen is blanked (more precisely, filled with one color: black, or the blue color of the Chromium's window). One can successfully switch to a linux text console. But this state of the graphics screen stays "forever" until a reboot: restarting X doesn't help. This happens rather seldom; and is not deterministically reproducible. 111016 1 imz 2010-08-05 10:53:19 +0400 (Originally posted to https://bugzilla.altlinux.org/show_bug.cgi?id=23739#c6 , but htis comments concerns 5.1 as well.) This also happened on 2.6.32-un-def-alt5 (from 5.1) and that xorg-drv-intel-2.4.3-alt0.M41.1 (when working in rxvt-unicode-9.02-alt1). 111017 2 imz 2010-08-05 10:55:54 +0400 Perhaps, it's fixed by this famous (http://www.linux.org.ru/news/kernel/5174456 ) commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=944001201ca0196bcdb088129e5866a9f379d08cb ... 111019 3 imz 2010-08-05 10:59:16 +0400 (In reply to comment #1) > This also happened on 2.6.32-un-def-alt5 (from 5.1) and that https://bugzilla.altlinux.org/show_bug.cgi?id=23850 111023 4 wrar 2010-08-05 11:13:11 +0400 https://bugzilla.kernel.org/show_bug.cgi?id=14781 (В ответ на комментарий №2) > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=944001201ca0196bcdb088129e5866a9f379d08cb > ... 404 111088 5 imz 2010-08-09 15:43:49 +0400 (In reply to comment #4) > https://bugzilla.kernel.org/show_bug.cgi?id=14781 > > (В ответ на комментарий №2) > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=944001201ca0196bcdb088129e5866a9f379d08cb > > ... > > 404 Sorry, my typo was an extra "b" at the end; the correct URL is: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=944001201ca0196bcdb088129e5866a9f379d08c . 111090 6 imz 2010-08-09 15:52:10 +0400 (In reply to comment #5) > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=944001201ca0196bcdb088129e5866a9f379d08c > . Also, <q>Intel's Keith Packard provided a patch documenting some of the register used by Arlie's new code</q>: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=45503ded966c98e604c9667c0b458d40666b9ef3 .