<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <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="https://bugs.freedesktop.org/show_bug.cgi?id=70895#c3">Comment # 3</a> on <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="https://bugs.freedesktop.org/show_bug.cgi?id=70895">bug 70895</a> from <a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> Ilia Mirkin</a> <pre>(In reply to Marcin Zajaczkowski from <a href="show_bug.cgi?id=70895#c2">comment #2</a>) > Hello again. I upgraded my system to Fedora 21 and with > 3.17.3-300.fc21.x86_64 I cannot reproduce mentioned issue (with "CPU#0 stuck > for 22s"). > > Unfortunately I have problem with switching a discrete card. By default: > # echo OFF > /sys/kernel/debug/vgaswitcheroo/switch > does nothing - a discrete card is still in DynPwr state: That's expected. What's unexpected is that something is keeping a reference to your GPU which isn't letting it power off. Similar to <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>. > 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. I see no > messages from VGA switcheroo in the system log (as there were in 3.11.6). That is odd... not sure what that situation is. > Should I close that issue and report another issue? Yes, don't confuse multiple issues into one, it gets unwieldy.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>