From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.sourceforge.net
Subject: [Bug 34252] New: Unexpected behaviour when switching video cards with vga_switcheroo
Date: Mon, 2 May 2011 22:39:20 GMT [thread overview]
Message-ID: <bug-34252-2300@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=34252
Summary: Unexpected behaviour when switching video cards with
vga_switcheroo
Product: Drivers
Version: 2.5
Kernel Version: 2.6.39-rc5+ (1be6a1f89f131e9c3d22f819ec542be9cda8c9e3)
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
ReportedBy: e-mail@date.by
CC: alexdeucher@gmail.com
Regression: Yes
Created an attachment (id=56262)
--> (https://bugzilla.kernel.org/attachment.cgi?id=56262)
Kernel config
Trying to setup script, that switches video cards, I ran into the situation
when I left with a black screen not possible to do anything with the system.
Here is an example:
# cat /sys/kernel/debug/vgaswitcheroo/switch
0:IGD:+:Pwr:0000:01:05.0
1:DIS: :Pwr:0000:02:00.0
# echo IGD > /sys/kernel/debug/vgaswitcheroo/switch
# cat /sys/kernel/debug/vgaswitcheroo/switch
0:IGD:+:Off:0000:01:05.0
1:DIS: :Pwr:0000:02:00.0
I think that this behaviour is buggy and this should not happen.
Environment:
# lspci | grep -i vga
01:05.0 VGA compatible controller: ATI Technologies Inc RS780M/RS780MN [Radeon
HD 3200 Graphics]
02:00.0 VGA compatible controller: ATI Technologies Inc M93 [Mobility Radeon HD
4500 Series]
# uname -a
Linux garik-laptop 2.6.39-rc5+ #8 SMP Sat Apr 30 18:36:12 MSD 2011 x86_64 AMD
Athlon(tm) Neo Processor MV-40 AuthenticAMD GNU/Linux
--
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.
------------------------------------------------------------------------------
WhatsUp Gold - Download Free Network Management Software
The most intuitive, comprehensive, and cost-effective network
management toolset available today. Delivers lowest initial
acquisition cost and overall TCO of any competing solution.
http://p.sf.net/sfu/whatsupgold-sd
--
next reply other threads:[~2011-05-02 22:39 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-02 22:39 bugzilla-daemon [this message]
2011-05-02 22:45 ` [Bug 34252] Unexpected behaviour when switching video cards with vga_switcheroo bugzilla-daemon
2011-05-02 22:48 ` bugzilla-daemon
2011-05-02 22:51 ` bugzilla-daemon
2011-05-03 10:18 ` bugzilla-daemon
2011-05-09 19:18 ` bugzilla-daemon
2011-05-09 21:53 ` bugzilla-daemon
2011-05-09 21:56 ` bugzilla-daemon
2011-05-10 13:17 ` bugzilla-daemon
2011-05-10 18:08 ` bugzilla-daemon
2011-05-11 6:18 ` bugzilla-daemon
2011-05-11 22:49 ` bugzilla-daemon
2011-05-12 14:04 ` bugzilla-daemon
2011-05-12 23:01 ` bugzilla-daemon
2011-05-14 22:19 ` bugzilla-daemon
2011-05-19 7:21 ` bugzilla-daemon
2011-05-19 7:27 ` bugzilla-daemon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bug-34252-2300@https.bugzilla.kernel.org/ \
--to=bugzilla-daemon@bugzilla.kernel.org \
--cc=dri-devel@lists.sourceforge.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).