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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 101837] libdrm fails to get bus id
Date: Thu, 20 Jul 2017 11:16:37 +0000	[thread overview]
Message-ID: <bug-101837-502-IFser4xDUB@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-101837-502@http.bugs.freedesktop.org/>


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https://bugs.freedesktop.org/show_bug.cgi?id=101837

--- Comment #3 from Emil Velikov <emil.l.velikov@gmail.com> ---
DanielP an orthogonal solution is to simply not use drmOpen. While it works,
sometimes, there's a lot of hidden gotchas.

Simply replace the pciaccess + drmOpen with drmDevice2 - see
libdrm/tests/drmdevice.c.

Notes:
* radeon-top does _not_ need to open the card node, hence no need for auth -
directly or via xcb
* using pciaccess, or drmDevice2 with DRM_DEVICE_GET_PCI_REVISION will wake up
your discrete GPU, even if you're looking for the stats of you APU - you want
to avoid that if possible.
* do not forget to close the fd - currently it's leaked.

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  parent reply	other threads:[~2017-07-20 11:16 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-19  7:57 [Bug 101837] libdrm fails to get bus id bugzilla-daemon
2017-07-19 11:01 ` bugzilla-daemon
2017-07-20  2:46 ` bugzilla-daemon
2017-07-20 11:16 ` bugzilla-daemon [this message]
2017-07-21  6:30 ` bugzilla-daemon
2017-07-21 12:32 ` bugzilla-daemon
2017-07-21 13:10 ` bugzilla-daemon
2017-07-21 14:56 ` bugzilla-daemon
2017-07-22  6:34 ` bugzilla-daemon
2019-09-24 17:09 ` bugzilla-daemon

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