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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Discrete card seems to be powered on even if reported as Off"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86503">86503</a>
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<th>Summary</th>
<td>Discrete card seems to be powered on even if reported as Off
</td>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Driver/nouveau
</td>
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<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
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<th>Reporter</th>
<td>mszpak@wp.pl
</td>
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
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<pre>Following up <a class="bz_bug_link
bz_status_NEW "
title="NEW - BUG: soft lockup - CPU#0 stuck for 22s! [Xorg:1292] after disable descrete card with switcheroo"
href="show_bug.cgi?id=70895">Bug 70895</a>.
On Fedora 21 with 3.17.3-300.fc21.x86_64 when booting with nouveau.runpm=0 I
have both cards on:
$ $ sudo cat /sys/kernel/debug/vgaswitcheroo/switch
0:IGD:+:Pwr:0000:00:02.0
1:DIS: :Pwr:0000:01:00.0
and after:
# echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
I have:
0:IGD:+:Pwr:0000:00:02.0
1:DIS: :Off:0000:01:00.0
Looks ok, but I still see 3 providers:
$ xrandr --listproviders
Providers: number : 3
Provider 0: id: 0x90 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs:
3 outputs: 5 associated providers: 2 name:Intel
Provider 1: id: 0x63 cap: 0x7, Source Output, Sink Output, Source Offload
crtcs: 2 outputs: 2 associated providers: 2 name:nouveau
Provider 2: id: 0x63 cap: 0x7, Source Output, Sink Output, Source Offload
crtcs: 2 outputs: 2 associated providers: 2 name:nouveau
and system temperature could suggest that the card is still on.
When I use (on the second kernel) bbswitch with bumblebee I see only one
provider and the temperature is a few (~6) degrees lower.
I see no messages from VGA switcheroo in the system log (as there were in
3.11.6). Can I make output more verbose or do something else to provide more
details about the situation?
System specification:
Asus N43SN
GeForce GT 550M + integrated Intel card using i915 driver (NVidia Optimus)
kernel-3.17.3-300.fc21.x86_64
xorg-x11-drv-nouveau-1.0.11-1.fc21.x86_64
xorg-x11-server-Xorg-1.16.1-1.fc21.x86_64
Btw, on that system there is also problem with auto-suspending (with not
disabled nouveau.runpm) - a card is always in DynPwr - <a class="bz_bug_link
bz_status_NEW "
title="NEW - [NVC1] runtime pm not auto-suspending card"
href="show_bug.cgi?id=70875">Bug 70875</a>.</pre>
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