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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 73530] Asus U38N: Black screen with Radeon driver in Linux
Date: Fri, 08 May 2015 07:36:31 +0000	[thread overview]
Message-ID: <bug-73530-502-yhoJ6DHyVI@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-73530-502@http.bugs.freedesktop.org/>


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https://bugs.freedesktop.org/show_bug.cgi?id=73530

N.Leiten <nickleiten@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nickleiten@gmail.com

--- Comment #77 from N.Leiten <nickleiten@gmail.com> ---
Created attachment 115629
  --> https://bugs.freedesktop.org/attachment.cgi?id=115629&action=edit
Panel datasheet

At this time I managed to get working video-stream to panel, but the timings is
obviously wrong. The main problem is Spread Spectrum somehow get disabled in
reinit cycle, and not enabled, so I just removed SS management and got blinking
noise on the screen.
Also I added some delays that necessary for this panel (maybe all another needs
it too). Due to attached datasheet on page 15 we got sequence of power-on and
power-off for this panel. Interesting this is Reset interval of 500ms which is
mandatory between power-off panel and powering it back on.

Now I'm trying to figure initial PLL setings that BIOS set before OS starts,
after that I'll try to fix this behaviour. I don't fully know vesa framebuffer
initialization, but as I understand, it get values from VBIOS/default BIOS
address space for VGA and trying to apply them. Moreover, when radeon KMS is
off I got fully different values of Modeline comparing to EDID.

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  parent reply	other threads:[~2015-05-08  7:36 UTC|newest]

Thread overview: 120+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-13  0:01 [Bug 73530] New: Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12 bugzilla-daemon
2014-01-13  0:02 ` [Bug 73530] " bugzilla-daemon
2014-01-13  0:08 ` bugzilla-daemon
2014-01-13  0:09 ` bugzilla-daemon
2014-01-14 15:04 ` bugzilla-daemon
2014-01-14 15:11 ` bugzilla-daemon
2014-01-14 15:12 ` bugzilla-daemon
2014-01-14 15:19 ` bugzilla-daemon
2014-01-15  0:06 ` bugzilla-daemon
2014-01-15  9:04 ` bugzilla-daemon
2014-01-15  9:28 ` bugzilla-daemon
2014-01-15  9:31 ` bugzilla-daemon
2014-01-15 13:50 ` bugzilla-daemon
2014-01-15 13:51 ` bugzilla-daemon
2014-01-15 14:09 ` bugzilla-daemon
2014-01-15 14:15 ` bugzilla-daemon
2014-01-15 15:59 ` bugzilla-daemon
2014-01-15 16:05 ` bugzilla-daemon
2014-01-15 19:05 ` bugzilla-daemon
2014-01-15 19:06 ` bugzilla-daemon
2014-01-15 20:57 ` bugzilla-daemon
2014-01-15 21:03 ` bugzilla-daemon
2014-01-15 21:05 ` bugzilla-daemon
2014-01-15 21:06 ` bugzilla-daemon
2014-01-15 21:08 ` bugzilla-daemon
2014-01-15 21:11 ` bugzilla-daemon
2014-01-15 21:16 ` bugzilla-daemon
2014-01-15 22:10 ` bugzilla-daemon
2014-01-15 22:18 ` bugzilla-daemon
2014-01-15 23:27 ` bugzilla-daemon
2014-01-16  3:14 ` bugzilla-daemon
2014-01-16  8:19 ` bugzilla-daemon
2014-01-16  9:05 ` bugzilla-daemon
2014-01-16  9:33 ` bugzilla-daemon
2014-01-16  9:37 ` bugzilla-daemon
2014-01-16 15:01 ` bugzilla-daemon
2014-01-16 23:02 ` bugzilla-daemon
2014-01-17  0:34 ` bugzilla-daemon
2014-01-17  0:35 ` bugzilla-daemon
2014-01-17  0:35 ` bugzilla-daemon
2014-01-17  8:35 ` bugzilla-daemon
2014-01-17  8:38 ` bugzilla-daemon
2014-01-17 14:41 ` bugzilla-daemon
2014-01-17 16:03 ` bugzilla-daemon
2014-01-17 16:05 ` bugzilla-daemon
2014-01-17 17:41 ` bugzilla-daemon
2014-01-17 22:03 ` bugzilla-daemon
2014-01-22 15:24 ` bugzilla-daemon
2014-01-22 16:15 ` bugzilla-daemon
2014-01-22 16:21 ` bugzilla-daemon
2014-01-25  9:27 ` bugzilla-daemon
2014-01-25 13:25 ` bugzilla-daemon
2014-01-29 22:25 ` bugzilla-daemon
2014-01-30  8:54 ` bugzilla-daemon
2014-01-30 11:44 ` [Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11, 3.12, 3.13 bugzilla-daemon
2014-01-30 11:48 ` bugzilla-daemon
2014-01-30 14:47 ` bugzilla-daemon
2014-02-01 11:50 ` bugzilla-daemon
2014-02-01 11:57 ` bugzilla-daemon
2014-02-01 12:00 ` bugzilla-daemon
2014-02-01 12:02 ` bugzilla-daemon
2014-02-03  9:49 ` bugzilla-daemon
2014-02-06  9:43 ` bugzilla-daemon
2014-02-06 10:12 ` [Bug 73530] Asus U38N: Black screen with Radeon driver in Linux bugzilla-daemon
2014-02-17 13:08 ` bugzilla-daemon
2014-02-17 13:09 ` bugzilla-daemon
2014-10-21 15:03 ` bugzilla-daemon
2014-10-22 20:42 ` bugzilla-daemon
2014-10-22 21:14 ` bugzilla-daemon
2014-10-22 21:29 ` bugzilla-daemon
2014-10-22 21:34 ` bugzilla-daemon
2014-11-06 22:20 ` bugzilla-daemon
2014-11-16 12:14 ` bugzilla-daemon
2014-11-17 16:02 ` bugzilla-daemon
2014-11-17 19:03 ` bugzilla-daemon
2014-11-28  1:28 ` bugzilla-daemon
2014-12-01  2:10 ` bugzilla-daemon
2015-01-13 23:16 ` bugzilla-daemon
2015-05-04  8:44 ` bugzilla-daemon
2015-05-08  0:01 ` bugzilla-daemon
2015-05-08  7:36 ` bugzilla-daemon [this message]
2015-05-08 13:47 ` bugzilla-daemon
2015-05-08 14:03 ` bugzilla-daemon
2015-05-10 17:26 ` bugzilla-daemon
2015-05-11 16:09 ` bugzilla-daemon
2015-05-11 17:10 ` bugzilla-daemon
2015-05-11 17:29 ` bugzilla-daemon
2015-05-11 17:44 ` bugzilla-daemon
2015-05-11 17:59 ` bugzilla-daemon
2015-05-11 18:03 ` bugzilla-daemon
2015-05-12 17:17 ` bugzilla-daemon
2015-05-14 13:33 ` bugzilla-daemon
2015-05-14 15:37 ` bugzilla-daemon
2015-05-14 15:59 ` bugzilla-daemon
2015-05-14 16:15 ` bugzilla-daemon
2015-05-14 16:22 ` bugzilla-daemon
2015-05-14 17:36 ` bugzilla-daemon
2015-05-14 18:34 ` bugzilla-daemon
2015-05-14 19:10 ` bugzilla-daemon
2015-05-14 19:45 ` bugzilla-daemon
2015-05-14 20:01 ` bugzilla-daemon
2015-05-14 20:40 ` bugzilla-daemon
2015-05-14 23:50 ` bugzilla-daemon
2015-05-15  1:04 ` bugzilla-daemon
2015-05-15 14:16 ` bugzilla-daemon
2015-05-15 14:28 ` bugzilla-daemon
2015-05-15 20:16 ` bugzilla-daemon
2015-05-15 20:22 ` bugzilla-daemon
2015-05-16 15:40 ` bugzilla-daemon
2015-05-16 15:48 ` bugzilla-daemon
2015-05-18 21:44 ` bugzilla-daemon
2015-05-19 18:45 ` bugzilla-daemon
2015-05-19 19:05 ` bugzilla-daemon
2015-07-15  8:02 ` bugzilla-daemon
2015-08-06  9:24 ` bugzilla-daemon
2015-08-09  6:15 ` bugzilla-daemon
2015-08-10  2:41 ` bugzilla-daemon
2015-08-10 13:47 ` bugzilla-daemon
2015-08-12  1:53 ` bugzilla-daemon
2015-08-12 13:17 ` bugzilla-daemon

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