Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752875Ab1EJVlF (ORCPT ); Tue, 10 May 2011 17:41:05 -0400 Received: from mail-iw0-f174.google.com ([209.85.214.174]:61361 "EHLO mail-iw0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752147Ab1EJVlE convert rfc822-to-8bit (ORCPT ); Tue, 10 May 2011 17:41:04 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=APOIf2FT3Qc6Ksuf3coiZUoFhyDAvyZ936NKsMCFll3SI6riRfna3JasDIO8yRPDjg miZVx1/+Sy41VcR/v6n+bzxa9rQq/WE5Gm6w5Ey8Ew5PkSGi0gZOQpBFcDnzseriWSwb YJX/qjn3k4hrHfwY+gBxv+q7bh4YaPq/9TDKI= MIME-Version: 1.0 In-Reply-To: <201105101237.49686.thomas@fjellstrom.ca> References: <201105071815.03318.thomas@fjellstrom.ca> <201105092122.32284.thomas@fjellstrom.ca> <201105101237.49686.thomas@fjellstrom.ca> Date: Tue, 10 May 2011 17:41:02 -0400 Message-ID: Subject: Re: long delay when using HMDI output on RS780 From: Alex Deucher To: thomas@fjellstrom.ca Cc: Jerome Glisse , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 8312 Lines: 178 On Tue, May 10, 2011 at 2:37 PM, Thomas Fjellstrom wrote: > On May 10, 2011, you wrote: >> On Mon, May 9, 2011 at 11:22 PM, Thomas Fjellstrom > wrote: >> > On May 9, 2011, Thomas Fjellstrom wrote: >> >> On May 9, 2011, Alex Deucher wrote: >> >> > On Mon, May 9, 2011 at 5:04 PM, Thomas Fjellstrom >> >> > >> >> >> >> wrote: >> >> > > On May 9, 2011, Thomas Fjellstrom wrote: >> >> > >> On May 9, 2011, Jerome Glisse wrote: >> >> > >> > On Mon, May 9, 2011 at 3:50 PM, Thomas Fjellstrom >> >> > >> > >> >> > >> >> >> > >> wrote: >> >> > >> > > On May 7, 2011, Thomas Fjellstrom wrote: >> >> > >> > >> I just switched to using HDMI with my media center, and its >> >> > >> > >> causing a 30+ second delay in the screen turning on, as well >> >> > >> > >> as a 7 second delay in the X startup when it tries to fetch >> >> > >> > >> the EDID >> >> > >> > >> information. Basically I don't get any picture at all once KMS >> >> > >> > >> initializes until after X has been up a few seconds. >> >> > >> > >> >> >> > >> > >> The odd thing is the monitor seems to think something is going >> >> > >> > >> on, since it doesn't go to sleep or display its "No Signal" >> >> > >> > >> OSD, but just after X starts up, it pops up the "Input >> >> > >> > >> detected/switched" OSD, and the picture appears. >> >> > >> > >> >> >> > >> > >> The bios, grub2 (in both text mode and graphics mode), and the >> >> > >> > >> initial linux kernel messages all display fine and >> >> > >> > >> immediately. Its only once KMS and radeondrmfb initializes >> >> > >> > >> that there's a problem (at least till X starts up). >> >> > >> > >> >> >> > >> > >> I've just built with a vanila 2.6.38.4 kernel from the stable >> >> > >> > >> git repo, and have played with some EDID settings, trying to >> >> > >> > >> disable edid where I could thinking thats what caused the >> >> > >> > >> problem. That doesn't seem to be the case though. I also >> >> > >> > >> tried playing with the video= kernel option, trying to force >> >> > >> > >> disable VGA-1, and set a static mode for HDMI-A-1, but if I >> >> > >> > >> try, it seems to force disable HDMI-A-1 instead of force the >> >> > >> > >> mode. >> >> > >> > >> >> >> > >> > >> With a DVI-D cable instead, the problem goes away. >> >> > >> > >> >> >> > >> > >> Attached are the dmesg and xorg.log files for the latest boot >> >> > >> > >> with HDMI (no video= parameter, and EDID enabled, most >> >> > >> > >> settings at defaults). >> >> > >> > >> >> >> > >> > >> What exactly would cause this, and is there a way I can fix >> >> > >> > >> it? >> >> > >> > > >> >> > >> > > I've been playing around with it more, and got it to not blank >> >> > >> > > the screen after KMS init, /once/. So far no luck repeating >> >> > >> > > that success. >> >> > >> > > >> >> > >> > > I've tried late, and early kms init, and currently have the >> >> > >> > > radeon module and firmware compiled into the kernel. Boot >> >> > >> > > times at least are fairly decent, about 8-10s till X starts, >> >> > >> > > but about 25-35s till anything shows up. >> >> > >> > > >> >> > >> > > Some strangeness, I have the kernel set to force the hdmi >> >> > >> > > output to on, with a very specific mode, that X tends to like, >> >> > >> > > the vga port is forced disabled. X is set to ignore EDID, and >> >> > >> > > also set to that specific mode that it tends to auto set >> >> > >> > > itself. Regardless X still wants to pause for 7s 2-3 times >> >> > >> > > while processing EDID info. >> >> > >> > > >> >> > >> > > I've attached the new dmesg and xorg logs from the latest >> >> > >> > > attempts. >> >> > >> > > >> >> > >> > > Note, this only happens with KMS, with HDMI. disabling KMS, or >> >> > >> > > using DVI makes the problem go away. Even grub's own graphical >> >> > >> > > mode works fine, its only once KMS inits that things go bad, >> >> > >> > > and its not till after X is up for a few seconds that >> >> > >> > > something displays on my screen. >> >> > >> > > >> >> > >> > > -- >> >> > >> > > Thomas Fjellstrom >> >> > >> > > thomas@fjellstrom.ca >> >> > >> > >> >> > >> > Please boot with drm.debug=4 and attach dmesg it should be more >> >> > >> > verbose. You might also want to try booting with radeon.audio=0 >> >> > >> >> >> > >> Hi, attached both one with just drm.debug=4, and one with that and >> >> > >> radeon.audio=0. >> >> > >> >> >> > >> Now, I'm guessing its a bug in my monitor claiming it can do HDMI >> >> > >> audio? As setting radeon.audio=0 seems to have fixed the blanking >> >> > >> problem. And the dmesg logs seem to claim that radeon thinks it can >> >> > >> do HDMI audio. >> >> > >> >> > Most likely the driver is sending the wrong packets for hdmi audio. >> >> > Until that gets fixed up, it's probably best to disable hdmi audio if >> >> > it's not working for you. >> >> >> >> Ok. I'll do that for now, since I have no need for HDMI audio atm. My >> >> receiver is only capable of Dolby Pro Logic input, so eh. >> >> >> >> Would be nice to fix the xorg pauses. And whatever is causing the >> >> massive amounts of drm log spam (yes, I could disable drm.debug, but >> >> that would just hide the issue, as whatever it is, will keep doing >> >> whatever it is doing regardless). >> > >> > Any hints on where to look to fix the stalls when the xorg radeon driver >> > starts up? >> >> Is the Xserver block or is it just that there is no picture ? ie when >> you see somethings on the screen is it directly the gnome login screen >> or what ever should come first ? or do you then see gnome loading ? >> >> If it's just black and then you directly got gnome-shell it's likely >> that your tv doesn't live hdmi mode change and take time before >> showing the picture. > > I can see X start up, the cursor shows up, but it just pauses for a few > seconds, then once the wm is up, it pauses for a bit again. > Are you sure it's X/ddx and not kde or some desktop daemon loading/polling things? Does it pause the same way if you start plain X with twm or an xterm? Alex > Here's some log info from Xorg that I think might be relevant: > > 7 second wait: > [ ? ?16.161] (II) No input driver/identifier specified (ignoring) > [ ? ?23.725] (II) RADEON(0): EDID vendor "BNQ", prod id 30990 > > 1 second: > [ ? ?23.726] (II) RADEON(0): Modeline "1920x1080"x0.0 ? 74.25 ?1920 2558 2602 > 2750 ?1080 1084 1089 1125 +hsync +vsync (27.0 kHz) > [ ? ?24.620] (II) RADEON(0): EDID vendor "BNQ", prod id 30990 > > 6 seconds: > [ ? ?24.631] (II) RADEON(0): Modeline "1920x1080"x0.0 ? 74.25 ?1920 2558 2602 > 2750 ?1080 1084 1089 1125 +hsync +vsync (27.0 kHz) > [ ? ?30.206] (II) RADEON(0): EDID vendor "BNQ", prod id 30990 > > > It actually prints out the EDID information 5 times. Once at the beginning, > and theres no discernible pause, then later on at the end, it prints out the > EDID/DDC information 4 more times, with 3 pauses, once before the second print > out, once between the second and third, and once between the fourth and the > fifth. > > [ ? ?15.849] (II) RADEON(0): EDID for output HDMI-0 > [ ? ?15.849] (II) RADEON(0): Manufacturer: BNQ ?Model: 790e ?Serial#: 21573 > [ ? ?15.849] (II) RADEON(0): Year: 2009 ?Week: 6 > [ ? ?15.849] (II) RADEON(0): EDID Version: 1.3 > > This is what led me to believe it might be related to EDID. Thought maybe > there was some glitch causing kms+xorg to not like my monitor's EDID info, but > it seems it likes it just fine, so much it asks for it 4+ times (kms looks, > then x prints it out 5 times, possibly actually fetching it 3+ times). > > Also, I have it setup to auto boot into KDE without compositing enabled, using > startx in an init script. I'm thinking of switching to icewm or something > equally light weight, to see if maybe its KDE causing one of the pauses (it > didn't used to pause like this, before I updated to 2.6.38). > > Last bit of info, my "TV" is actually a 24" 1080p LCD monitor. > >> Cheers, >> Jerome > > > -- > Thomas Fjellstrom > thomas@fjellstrom.ca > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/