From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 75761] weston-launch no output - black screen Date: Sat, 31 May 2014 08:32:23 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2074194472==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============2074194472== Content-Type: multipart/alternative; boundary="1401525143.166F4.23869"; charset="us-ascii" --1401525143.166F4.23869 Date: Sat, 31 May 2014 08:32:23 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=75761 --- Comment #29 from Pekka Paalanen --- Hmm, a third remote possibility came to mind. If the timestamp delivered with the DRM pageflip event does not advance, I suppose Weston's fade-in animation might not advance either and therefore it never fades in. However this is hard for me to believe, as I think it would have caused problems with Xorg, too... wouldn't it? Or maybe Xorg is only looking at the vblank counters, and you'd actually need a program using GLX_OML_sync_control to even see the timestamps? One could check the timestamps by: weston_log("%s: time %u.%06u frame %u\n", __func__, sec, usec, frame); in compositor-drm.c page_flip_handler() function. Mm, I'd like to see a weston log with that when you have the black screen problem. -- You are receiving this mail because: You are the assignee for the bug. --1401525143.166F4.23869 Date: Sat, 31 May 2014 08:32:23 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 29 on bug 75761 from 
Hmm, a third remote possibility came to mind. If the timestamp delivered with
the DRM pageflip event does not advance, I suppose Weston's fade-in animation
might not advance either and therefore it never fades in. However this is hard
for me to believe, as I think it would have caused problems with Xorg, too...
wouldn't it?

Or maybe Xorg is only looking at the vblank counters, and you'd actually need a
program using GLX_OML_sync_control to even see the timestamps?

One could check the timestamps by:
weston_log("%s: time %u.%06u frame %u\n", __func__, sec, usec, frame);
in compositor-drm.c page_flip_handler() function.

Mm, I'd like to see a weston log with that when you have the black screen
problem.

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