* Suspend/resume regression in Toshiba A11 since 2.6.34-rc4
@ 2011-03-18 22:00 Herton Ronaldo Krzesinski
2011-03-18 22:38 ` Rafael J. Wysocki
0 siblings, 1 reply; 6+ messages in thread
From: Herton Ronaldo Krzesinski @ 2011-03-18 22:00 UTC (permalink / raw)
To: linux-kernel; +Cc: Rafael J. Wysocki
This regression is old, but discovered recently. Since 2.6.34-rc4,
a Toshiba Tecra A11 machine resumes without video for the first time.
Here is the strange thing reported, on the first suspend/resume, when
the machine wakes up the video is blank, but the machine is up (just the
screen is black). If you suspend again, on second resume the video comes
back normally.
Helping the reporter bisecting the problem, we narrowed down the bug to
this commit:
commit ac7729da880e742613129ee6dea0045328670d2d
Author: Rafael J. Wysocki <rjw@sisk.pl>
Date: Mon Apr 5 01:43:51 2010 +0200
ACPI / PM: Move ACPI video resume to a PM notifier
And reverting this commit on 2.6.38 still made the problem go away.
Looking at the commit above I don't saw any problem, and perhaps we have
some bad bios here which by moving the resume of acpi video later
triggers this bug. Also strange that on second suspend/resume everything
is normal... (the regression here is just the video is blank on first
resume).
I asked the reporter to try to increase brightness logged in remotely
when the video is blank after first resume, but this didn't have any
effect.
This was reported in https://bugs.launchpad.net/bugs/719620 (if reading
I recommend to skip to comment #58 and later), I can't think of any
solution besides trying to move acpi video resume perhaps back and
depend on video device being resume first. I asked for more debugging
information but got nothing unfortunately which could diagnose better
this...
--
[]'s
Herton
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Suspend/resume regression in Toshiba A11 since 2.6.34-rc4 2011-03-18 22:00 Suspend/resume regression in Toshiba A11 since 2.6.34-rc4 Herton Ronaldo Krzesinski @ 2011-03-18 22:38 ` Rafael J. Wysocki 2011-03-19 15:35 ` Herton Ronaldo Krzesinski 0 siblings, 1 reply; 6+ messages in thread From: Rafael J. Wysocki @ 2011-03-18 22:38 UTC (permalink / raw) To: Herton Ronaldo Krzesinski; +Cc: linux-kernel On Friday, March 18, 2011, Herton Ronaldo Krzesinski wrote: > This regression is old, but discovered recently. Since 2.6.34-rc4, > a Toshiba Tecra A11 machine resumes without video for the first time. > Here is the strange thing reported, on the first suspend/resume, when > the machine wakes up the video is blank, but the machine is up (just the > screen is black). If you suspend again, on second resume the video comes > back normally. > > Helping the reporter bisecting the problem, we narrowed down the bug to > this commit: > > commit ac7729da880e742613129ee6dea0045328670d2d > Author: Rafael J. Wysocki <rjw@sisk.pl> > Date: Mon Apr 5 01:43:51 2010 +0200 > > ACPI / PM: Move ACPI video resume to a PM notifier > > And reverting this commit on 2.6.38 still made the problem go away. > Looking at the commit above I don't saw any problem, and perhaps we have > some bad bios here which by moving the resume of acpi video later > triggers this bug. Also strange that on second suspend/resume everything > is normal... (the regression here is just the video is blank on first > resume). > > I asked the reporter to try to increase brightness logged in remotely > when the video is blank after first resume, but this didn't have any > effect. > > This was reported in https://bugs.launchpad.net/bugs/719620 (if reading > I recommend to skip to comment #58 and later), I can't think of any > solution besides trying to move acpi video resume perhaps back and > depend on video device being resume first. I asked for more debugging > information but got nothing unfortunately which could diagnose better > this... What graphics driver is used? Rafael ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Suspend/resume regression in Toshiba A11 since 2.6.34-rc4 2011-03-18 22:38 ` Rafael J. Wysocki @ 2011-03-19 15:35 ` Herton Ronaldo Krzesinski 2011-03-19 20:52 ` Rafael J. Wysocki 0 siblings, 1 reply; 6+ messages in thread From: Herton Ronaldo Krzesinski @ 2011-03-19 15:35 UTC (permalink / raw) To: Rafael J. Wysocki; +Cc: linux-kernel On Fri, Mar 18, 2011 at 11:38:52PM +0100, Rafael J. Wysocki wrote: > On Friday, March 18, 2011, Herton Ronaldo Krzesinski wrote: > > This regression is old, but discovered recently. Since 2.6.34-rc4, > > a Toshiba Tecra A11 machine resumes without video for the first time. > > Here is the strange thing reported, on the first suspend/resume, when > > the machine wakes up the video is blank, but the machine is up (just the > > screen is black). If you suspend again, on second resume the video comes > > back normally. > > > > Helping the reporter bisecting the problem, we narrowed down the bug to > > this commit: > > > > commit ac7729da880e742613129ee6dea0045328670d2d > > Author: Rafael J. Wysocki <rjw@sisk.pl> > > Date: Mon Apr 5 01:43:51 2010 +0200 > > > > ACPI / PM: Move ACPI video resume to a PM notifier > > > > And reverting this commit on 2.6.38 still made the problem go away. > > Looking at the commit above I don't saw any problem, and perhaps we have > > some bad bios here which by moving the resume of acpi video later > > triggers this bug. Also strange that on second suspend/resume everything > > is normal... (the regression here is just the video is blank on first > > resume). > > > > I asked the reporter to try to increase brightness logged in remotely > > when the video is blank after first resume, but this didn't have any > > effect. > > > > This was reported in https://bugs.launchpad.net/bugs/719620 (if reading > > I recommend to skip to comment #58 and later), I can't think of any > > solution besides trying to move acpi video resume perhaps back and > > depend on video device being resume first. I asked for more debugging > > information but got nothing unfortunately which could diagnose better > > this... > > What graphics driver is used? i915 > > Rafael > -- []'s Herton ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Suspend/resume regression in Toshiba A11 since 2.6.34-rc4 2011-03-19 15:35 ` Herton Ronaldo Krzesinski @ 2011-03-19 20:52 ` Rafael J. Wysocki 2011-03-21 11:52 ` Herton Ronaldo Krzesinski 0 siblings, 1 reply; 6+ messages in thread From: Rafael J. Wysocki @ 2011-03-19 20:52 UTC (permalink / raw) To: Herton Ronaldo Krzesinski; +Cc: linux-kernel On Saturday, March 19, 2011, Herton Ronaldo Krzesinski wrote: > On Fri, Mar 18, 2011 at 11:38:52PM +0100, Rafael J. Wysocki wrote: > > On Friday, March 18, 2011, Herton Ronaldo Krzesinski wrote: > > > This regression is old, but discovered recently. Since 2.6.34-rc4, > > > a Toshiba Tecra A11 machine resumes without video for the first time. > > > Here is the strange thing reported, on the first suspend/resume, when > > > the machine wakes up the video is blank, but the machine is up (just the > > > screen is black). If you suspend again, on second resume the video comes > > > back normally. > > > > > > Helping the reporter bisecting the problem, we narrowed down the bug to > > > this commit: > > > > > > commit ac7729da880e742613129ee6dea0045328670d2d > > > Author: Rafael J. Wysocki <rjw@sisk.pl> > > > Date: Mon Apr 5 01:43:51 2010 +0200 > > > > > > ACPI / PM: Move ACPI video resume to a PM notifier > > > > > > And reverting this commit on 2.6.38 still made the problem go away. > > > Looking at the commit above I don't saw any problem, and perhaps we have > > > some bad bios here which by moving the resume of acpi video later > > > triggers this bug. Also strange that on second suspend/resume everything > > > is normal... (the regression here is just the video is blank on first > > > resume). > > > > > > I asked the reporter to try to increase brightness logged in remotely > > > when the video is blank after first resume, but this didn't have any > > > effect. > > > > > > This was reported in https://bugs.launchpad.net/bugs/719620 (if reading > > > I recommend to skip to comment #58 and later), I can't think of any > > > solution besides trying to move acpi video resume perhaps back and > > > depend on video device being resume first. I asked for more debugging > > > information but got nothing unfortunately which could diagnose better > > > this... > > > > What graphics driver is used? > > i915 In the KMS mode I guess? Rafael ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Suspend/resume regression in Toshiba A11 since 2.6.34-rc4 2011-03-19 20:52 ` Rafael J. Wysocki @ 2011-03-21 11:52 ` Herton Ronaldo Krzesinski 2011-03-21 22:58 ` Rafael J. Wysocki 0 siblings, 1 reply; 6+ messages in thread From: Herton Ronaldo Krzesinski @ 2011-03-21 11:52 UTC (permalink / raw) To: Rafael J. Wysocki; +Cc: linux-kernel On Sat, Mar 19, 2011 at 09:52:52PM +0100, Rafael J. Wysocki wrote: > On Saturday, March 19, 2011, Herton Ronaldo Krzesinski wrote: > > On Fri, Mar 18, 2011 at 11:38:52PM +0100, Rafael J. Wysocki wrote: > > > On Friday, March 18, 2011, Herton Ronaldo Krzesinski wrote: > > > > This regression is old, but discovered recently. Since 2.6.34-rc4, > > > > a Toshiba Tecra A11 machine resumes without video for the first time. > > > > Here is the strange thing reported, on the first suspend/resume, when > > > > the machine wakes up the video is blank, but the machine is up (just the > > > > screen is black). If you suspend again, on second resume the video comes > > > > back normally. > > > > > > > > Helping the reporter bisecting the problem, we narrowed down the bug to > > > > this commit: > > > > > > > > commit ac7729da880e742613129ee6dea0045328670d2d > > > > Author: Rafael J. Wysocki <rjw@sisk.pl> > > > > Date: Mon Apr 5 01:43:51 2010 +0200 > > > > > > > > ACPI / PM: Move ACPI video resume to a PM notifier > > > > > > > > And reverting this commit on 2.6.38 still made the problem go away. > > > > Looking at the commit above I don't saw any problem, and perhaps we have > > > > some bad bios here which by moving the resume of acpi video later > > > > triggers this bug. Also strange that on second suspend/resume everything > > > > is normal... (the regression here is just the video is blank on first > > > > resume). > > > > > > > > I asked the reporter to try to increase brightness logged in remotely > > > > when the video is blank after first resume, but this didn't have any > > > > effect. > > > > > > > > This was reported in https://bugs.launchpad.net/bugs/719620 (if reading > > > > I recommend to skip to comment #58 and later), I can't think of any > > > > solution besides trying to move acpi video resume perhaps back and > > > > depend on video device being resume first. I asked for more debugging > > > > information but got nothing unfortunately which could diagnose better > > > > this... > > > > > > What graphics driver is used? > > > > i915 > > In the KMS mode I guess? Yes, in KMS mode. > > Rafael > -- []'s Herton ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Suspend/resume regression in Toshiba A11 since 2.6.34-rc4 2011-03-21 11:52 ` Herton Ronaldo Krzesinski @ 2011-03-21 22:58 ` Rafael J. Wysocki 0 siblings, 0 replies; 6+ messages in thread From: Rafael J. Wysocki @ 2011-03-21 22:58 UTC (permalink / raw) To: Herton Ronaldo Krzesinski, Matthew Garrett Cc: linux-kernel, ACPI Devel Mailing List On Monday, March 21, 2011, Herton Ronaldo Krzesinski wrote: > On Sat, Mar 19, 2011 at 09:52:52PM +0100, Rafael J. Wysocki wrote: > > On Saturday, March 19, 2011, Herton Ronaldo Krzesinski wrote: > > > On Fri, Mar 18, 2011 at 11:38:52PM +0100, Rafael J. Wysocki wrote: > > > > On Friday, March 18, 2011, Herton Ronaldo Krzesinski wrote: > > > > > This regression is old, but discovered recently. Since 2.6.34-rc4, > > > > > a Toshiba Tecra A11 machine resumes without video for the first time. > > > > > Here is the strange thing reported, on the first suspend/resume, when > > > > > the machine wakes up the video is blank, but the machine is up (just the > > > > > screen is black). If you suspend again, on second resume the video comes > > > > > back normally. > > > > > > > > > > Helping the reporter bisecting the problem, we narrowed down the bug to > > > > > this commit: > > > > > > > > > > commit ac7729da880e742613129ee6dea0045328670d2d > > > > > Author: Rafael J. Wysocki <rjw@sisk.pl> > > > > > Date: Mon Apr 5 01:43:51 2010 +0200 > > > > > > > > > > ACPI / PM: Move ACPI video resume to a PM notifier > > > > > > > > > > And reverting this commit on 2.6.38 still made the problem go away. > > > > > Looking at the commit above I don't saw any problem, and perhaps we have > > > > > some bad bios here which by moving the resume of acpi video later > > > > > triggers this bug. Also strange that on second suspend/resume everything > > > > > is normal... (the regression here is just the video is blank on first > > > > > resume). > > > > > > > > > > I asked the reporter to try to increase brightness logged in remotely > > > > > when the video is blank after first resume, but this didn't have any > > > > > effect. > > > > > > > > > > This was reported in https://bugs.launchpad.net/bugs/719620 (if reading > > > > > I recommend to skip to comment #58 and later), I can't think of any > > > > > solution besides trying to move acpi video resume perhaps back and > > > > > depend on video device being resume first. I asked for more debugging > > > > > information but got nothing unfortunately which could diagnose better > > > > > this... > > > > > > > > What graphics driver is used? > > > > > > i915 > > > > In the KMS mode I guess? > > Yes, in KMS mode. OK, I have no idea how to fix this. Matthew, can you please have a look here? Rafael ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-03-21 22:58 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-03-18 22:00 Suspend/resume regression in Toshiba A11 since 2.6.34-rc4 Herton Ronaldo Krzesinski 2011-03-18 22:38 ` Rafael J. Wysocki 2011-03-19 15:35 ` Herton Ronaldo Krzesinski 2011-03-19 20:52 ` Rafael J. Wysocki 2011-03-21 11:52 ` Herton Ronaldo Krzesinski 2011-03-21 22:58 ` Rafael J. Wysocki
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