Bug 91229

Summary:	[NVA8] VDPAU only works when debug is on
Product:	Mesa	Reporter:	zippy <gohabsgo60>
Component:	Drivers/DRI/nouveau	Assignee:	Nouveau Project <nouveau>
Status:	RESOLVED MOVED	QA Contact:	Nouveau Project <nouveau>
Severity:	normal
Priority:	medium
Version:	10.5
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	dmesg output (no debug parameter)

Description zippy 2015-07-05 01:18:02 UTC

if i boot with 'nouveau.debug=debug', VDPAU works flawlessly for all supported codecs. however, if i boot without it and try to play any video with VDPAU, my system slows down to a crawl. if i take too long to stop playback or to kill the offending program, i lose control of the system and i am forced to reboot.

i haven't experimented with other kernel parameters yet. any suggestions ?

GeForce 210
mesa 10.5.7
kernel 4.0.5

Comment 1 Ilia Mirkin 2015-07-05 03:08:42 UTC

Is this a recent regression, or is this the first time you're trying it?

Comment 2 zippy 2015-07-05 04:49:12 UTC

the ctime on my firmware files is January 11, 2015, so it was around that time that i first got VDPAU to "work". nothing has changed since then, the behaviour is exactly the same.

Comment 3 zippy 2015-07-05 20:06:12 UTC

Created attachment 116965 [details]
dmesg output (no debug parameter)

Comment 4 zippy 2015-07-05 20:17:13 UTC

i don't know if this is useful, but here is the difference in run times for debug on vs off, for a short mpeg2 video:

off (many dropped frames):
> time mplayer grb_2.mpg
real    0m40.529s
user    0m8.172s
sys     0m2.507s

on:
> time mplayer grb_2.mpg
real    0m32.866s
user    0m1.031s
sys     0m0.374s

i managed to play the full video with debug off without causing the system to become unresponsive.

Comment 5 GitLab Migration User 2019-09-18 20:40:15 UTC

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

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