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From: Takashi Iwai <tiwai@suse.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Keith Packard <keithp@keithp.com>,
	Linux SCSI List <linux-scsi@vger.kernel.org>,
	Linux ACPI <linux-acpi@vger.kernel.org>,
	Carlos Mafra <crmafra2@gmail.com>,
	Linux Wireless List <linux-wireless@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	DRI <dri-devel@lists.freedesktop.org>,
	Florian Mickler <florian@mickler.org>,
	Network Development <netdev@vger.kernel.org>,
	Dave Airlie <airlied@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Kernel Testers List <kernel-testers@vger.kernel.org>,
	Dave Airlie <airlied@gmail.com>,
	Linux PM List <linux-pm@lists.linux-foundation.org>,
	Maciej Rutecki <maciej.rutecki@gmail.com>
Subject: Re: 2.6.38-rc3-git1: Reported regressions 2.6.36 -> 2.6.37
Date: Fri, 04 Feb 2011 12:16:17 +0100	[thread overview]
Message-ID: <s5h39o4kq2m.wl%tiwai__41005.8035086424$1296818359$gmane$org@suse.de> (raw)
In-Reply-To: <AANLkTin-9a5Z3qq4t8UakRvgB1G3_CT2RLKMVaHXvnLr@mail.gmail.com>

At Thu, 3 Feb 2011 17:11:14 -0800,
Linus Torvalds wrote:
> 
> On Thu, Feb 3, 2011 at 5:05 PM, Keith Packard <keithp@keithp.com> wrote:
> >
> > The goal is to make it so that when you *do* set a mode, DPMS gets set
> > to ON (as the monitor will actually be "on" at that point). Here's a
> > patch which does the DPMS_ON precisely when setting a mode.
> 
> Ok, patch looks sane, but it does leave me with the "what about the
> 'fb_changed' case?" question. Is that case basically guaranteed to not
> change any existing dpms state?
> 
> > (note, this patch compiles, but is otherwise only lightly tested).
> 
> Carlos? Takashi? Ignore my crazy patch, try this one instead. Does it
> fix things for you?

Yes, the patch fixes the issue with xrandr off and on.

However, another issue I reported in that bugzilla still remains:
namely, DPMS value returned via ioctl or obtained via sysfs is
inconsistent with the actually applied value.   The reason is that
there are two places keeping the current DPMS values, in connector and
in crtc device properties.  A similar fix like my patch in the
bugzilla would be still needed, I guess.


thanks,

Takashi

  parent reply	other threads:[~2011-02-04 11:16 UTC|newest]

Thread overview: 103+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-03  0:03 2.6.38-rc3-git1: Reported regressions 2.6.36 -> 2.6.37 Rafael J. Wysocki
2011-02-03  0:03 ` Rafael J. Wysocki
2011-02-03  0:03 ` [Bug #22542] [2.6.37-rc1] drm:i195 errors Rafael J. Wysocki
2011-02-03  8:19   ` Paul Rolland
2011-02-03  8:19     ` Paul Rolland
2011-02-03 19:01     ` Rafael J. Wysocki
2011-02-03 19:01       ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #22912] spi_lm70llp module crash on unload (2.6.37-rc1) Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #22642] 2.6.37-rc1: Disk takes 10 seconds to resume - MacBook2,1 Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #22882] (2.6.37-rc1) amd64-agp module crashed on second load Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #23472] 2.6.37-rc2 vs. 2.6.36 laptop backlight changes? Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #24822] Embedded DisplayPort is detected wrongly on HP ProBook 5320m Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #24762] BUG at perf_ctx_adjust_freq (kernel/perf_event.c:1582) Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #24582] Kernel Oops at tty_buffer_request_room when using pppd program (2.6.37-rc4) Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #22942] [2.6.37-rc1, OOM] virtblk: OOM in do_virtblk_request() Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #24882] PM/Hibernate: Memory corruption patch introduces regression (2.6.36.2) Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #25432] Alpha fails to build with gcc 4.4 Rafael J. Wysocki
2011-02-08  8:24   ` Michael Cree
2011-02-03  0:05 ` [Bug #25442] ixp4xx defines FREQ macro; conflicts with gspca/ov519 driver Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #25072] backlight level is not maintened during LID close/open Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #25402] kernel (2.6.37-8-generic_amd64) panic on boot (with message "map_single: bounce buffer is not DMA'ble) - possible regression !!! Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #25822] [BUG] kernel BUG at mm/truncate.c:479! on 2.6.37-rc8 Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #25832] kernel crashes upon resume if usb devices are removed when suspended Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #25732] i915 turns picture green when display switched off-on Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #26112] [LogFS] [2.6.37-rc8+] Kernel BUG at logfs/readwrite.c:297! Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #25922] IdeaPad Y530 brightness keys not functioning Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #26102] [2.6.37-rc8] BUG kmalloc-256: Poison overwritten Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #26552] Screen flickering with 2.6.37 [ATI X1600] Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #26212] kernel NULL pointer dereference in pxa3xx_nand_probe Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #26242] BUG: unable to handle kernel NULL pointer dereference at (null) Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #26802] b43: Suspend failed Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #26932] [SNB mobile] Oops in DRM intel driver, esp. during S3/S4 stress test Rafael J. Wysocki
2011-02-03 13:35   ` Matthias Hopf
2011-02-03 13:35     ` Matthias Hopf
2011-02-03 19:03     ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #26842] [2.6.37 regression] threads with CPU affinity cannot be killed Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #26582] NULL pointer dereference on pipe creation Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #26942] radeon: screen distortion on resume Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #27152] VGA output broken at cold boot Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #27132] flush-btrfs gets into an infinite loop Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #27202] Remote control of saa7134-based tv card "ASUSTeK P7131 Hybrid" stopped working in 2.6.37 Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #27642] 2.6.37 says WARNING: at arch/x86/kernel/apic/apic.c:1287 setup_local_APIC+0x18f/0x263() Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #27532] ath9k prevents CPU from entering lower C-states Rafael J. Wysocki
2011-02-03  0:05   ` Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #27402] Atheros adapter no longer loads firmware Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #27892] SNB: GPU hang with Slip xscreensaver Rafael J. Wysocki
2011-02-03  0:05 ` [Bug #27842] [regression?] hang with 2.6.37 on a BTRFS test machine Rafael J. Wysocki
2011-02-03 11:20   ` Martin Steigerwald
2011-02-03 11:46     ` Helmut Hullen
2011-02-03 23:21       ` Chris Samuel
2011-02-03 19:05     ` Rafael J. Wysocki
2011-02-03 11:23 ` 2.6.38-rc3-git1: Reported regressions 2.6.36 -> 2.6.37 Carlos R. Mafra
2011-02-03 11:23   ` Carlos R. Mafra
2011-02-03 15:42   ` Linus Torvalds
2011-02-03 15:42   ` Linus Torvalds
2011-02-03 15:42     ` Linus Torvalds
2011-02-03 16:11     ` Takashi Iwai
2011-02-03 16:11     ` Takashi Iwai
2011-02-03 19:09       ` Rafael J. Wysocki
2011-02-03 21:56         ` Carlos Mafra
2011-02-03 21:56           ` Carlos Mafra
2011-02-03 22:10           ` Linus Torvalds
2011-02-03 22:10           ` Linus Torvalds
2011-02-03 22:19             ` Linus Torvalds
2011-02-03 22:19             ` Linus Torvalds
2011-02-04  0:06             ` Dave Airlie
2011-02-04  0:06             ` Dave Airlie
2011-02-04  0:06               ` Dave Airlie
2011-02-04  0:30               ` Linus Torvalds
2011-02-04  0:30               ` Linus Torvalds
2011-02-04  0:45                 ` Dave Airlie
2011-02-04  0:45                 ` Dave Airlie
2011-02-04  1:05                 ` Keith Packard
2011-02-04  1:05                 ` Keith Packard
2011-02-04  1:05                   ` Keith Packard
2011-02-04  1:11                   ` Linus Torvalds
2011-02-04  1:41                     ` Keith Packard
2011-02-04  1:41                     ` Keith Packard
2011-02-04  1:42                     ` Dave Airlie
2011-02-04  1:42                     ` Dave Airlie
2011-02-04  7:05                     ` Carlos R. Mafra
2011-02-04  7:05                       ` Carlos R. Mafra
2011-02-04  7:05                     ` Carlos R. Mafra
2011-02-04 11:16                     ` Takashi Iwai
2011-02-04 11:16                     ` Takashi Iwai [this message]
2011-02-04  1:11                   ` Linus Torvalds
2011-02-03 21:56         ` Carlos Mafra
2011-02-03 19:09       ` Rafael J. Wysocki
2011-02-03 11:23 ` Carlos R. Mafra
2011-02-03  0:03 Rafael J. Wysocki

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