Bug 10843
| Summary: | Display artifacts on XOrg logout with PAT kernel and VESA framebuffer | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Frans Pop (elendil) |
| Component: | Console/Framebuffers | Assignee: | Venkatesh Pallipadi (venki) |
| Status: | CLOSED CODE_FIX | ||
| Severity: | normal | CC: | adaplas, jbarnes, mingo, rjw |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.26-rc1 | Subsystem: | |
| Regression: | Yes | Bisected commit-id: | |
| Bug Depends on: | |||
| Bug Blocks: | 10492 | ||
The issue is still present in 2.6.26-rc4. Confirmed to be present in 2.6.26-rc5-git2. References : http://lkml.org/lkml/2008/6/7/206 On Saturday, 14 of June 2008, Frans Pop wrote:
> On Saturday 14 June 2008, Rafael J. Wysocki wrote:
> > The following bug entry is on the current list of known regressions
> > from 2.6.25. Please verify if it still should be listed.
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10843
> > Subject : Display artifacts on XOrg logout with PAT kernel and VESA
> > framebuffer
> > Submitter : Frans Pop <elendil@planet.nl>
> > Date : 2008-05-31 14:04 (15 days old)
> > References : http://lkml.org/lkml/2008/6/7/206
>
> Yes. See also: http://lkml.org/lkml/2008/6/13/159
Regressions list annotation: References : http://lkml.org/lkml/2008/6/15/119 On Sunday, 22 of June 2008, you wrote:
> On Sunday 22 June 2008, Rafael J. Wysocki wrote:
> > The following bug entry is on the current list of known regressions
> > from 2.6.25. Please verify if it still should be listed.
> >
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10843
> > Subject : Display artifacts on XOrg logout with PAT kernel and VESA
> > framebuffer
> > Submitter : Frans Pop <elendil@planet.nl>
> > Date : 2008-05-31 14:04 (23 days old)
> > References : http://lkml.org/lkml/2008/6/7/206
> > http://lkml.org/lkml/2008/6/15/119
>
> Yes.
References : http://lkml.org/lkml/2008/6/23/160 On Sunday, 29 of June 2008, Frans Pop wrote:
> On Sunday 29 June 2008, you wrote:
> > The following bug entry is on the current list of known regressions
> > from 2.6.25. Please verify if it still should be listed.
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10843
> > Subject : Display artifacts on XOrg logout with PAT kernel and VESA
> > framebuffer
>
> Yes.
On Monday, 7 of July 2008, Frans Pop wrote:
> On Sunday 06 July 2008, you wrote:
> > The following bug entry is on the current list of known regressions
> > from 2.6.25. Please verify if it still should be listed.
> >
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10843
> > Subject : Display artifacts on XOrg logout with PAT kernel and VESA
> > framebuffer
>
> Yes.
Confirmed present in 2.6.27-rc6. References : http://lkml.org/lkml/2008/9/12/44 Trivially reproducible on 3 of my systems; see reference for details. Fixed with: commit 9542ada803198e6eba29d3289abb39ea82047b92 Author: Suresh Siddha <suresh.b.siddha@intel.com> Date: Wed Sep 24 08:53:33 2008 -0700 x86: track memtype for RAM in page struct |
Latest working kernel version: 2.6.25 Earliest failing kernel version: 2.6.26-rc1 Distribution: Debian Hardware Environment: Intel D945GCZ mainboard, Intel Pentium D 3.20GHz Video: 00:02.0 VGA compatible controller [0300]: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02) Software Environment: x86_64; Debian unstable First reported: http://lkml.org/lkml/2008/5/2/406 (the error messages reported in that mail have already been resolved) Problem Description: When CONFIG_X86_PAT is enabled and the VESA framebuffer is used for the console by booting with "vga=791", logging out of XOrg will result in artifacts (sometimes a 2cm band, sometimes covering most of the display) being displayed for a short time. Jesse Barnes has done some initial work on this issue, see: http://groups.google.co.uk/group/fa.linux.kernel/msg/f5bf9294bf744612 (cannot find that message on lkml.org) This patch proved insufficient to solve the issue.