<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - pwm1 value not restored during hibernate/restore cycle in the event of manual fan management mode" href="https://bugs.freedesktop.org/show_bug.cgi?id=66177#c8">Comment # 8</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - pwm1 value not restored during hibernate/restore cycle in the event of manual fan management mode" href="https://bugs.freedesktop.org/show_bug.cgi?id=66177">bug 66177</a> from <a class="email" href="mailto:martin.peres@ensi-bourges.fr" title="Martin Peres <martin.peres@ensi-bourges.fr>"> Martin Peres</a> <pre>(In reply to <a href="show_bug.cgi?id=66177#c6">comment #6</a>) > (In reply to <a href="show_bug.cgi?id=66177#c5">comment #5</a>) > > Well, I agree that it is my fault that I may not have thought about the > > suspend/resume cycle. Thanks for reporting that. However, I'm afraid you are > > hit by another bug, a bug in the ALARM mechanism, which explains why > > sometimes, the fan speed isn't updated anymore. This is very worrying and > > may force us to move to using Linux's periodic tasks instead. > It is indeed a serious bug as the average user may not be as careful as I > was or may not necessarily pay attention to the card temperature after > hibernate/restore, particularly if the "auto" fan management was working > prior to that. If that happens, the video card is almost certain to burn out! Well, luckily, this isn't true :) PTHERM sends the kernel some IRQs whenever temperature reaches some threshold. The first one is fan-boost which puts the fan to 100%. The last one turns off the computer. This feature shouldn't be affected by resume/suspend. > > > Thanks for this review. I'll work on fixing this ASAP. I can work on the > > sysfs restoration but I have no card with a PWM fan with me here. I may then > > require you to test some stuff. > Have I ever let you down? (; > > When you've made your first call for testing of the therm features over 18 > months ago, I responded and did quite a lot of some testing (you can't deny > that, can you?), while also benefiting from the "auto" fan management which > was, at the time, working perfectly. It was simply sublime and was a great > pity that it didn't make it into the main nouveau repository at the end (I > used your git thermal fork for absolute ages). Hey hey, thanks for being supportive. I indeed recognized your nick straight away. The new model is nicer than it used to be from a dev point of view. As a user, I agree the previous system was better. I'll try to improve on that as time permits :) > > So, I'll be able to help you here with the testing as well, as long as there > is willingness on your and Ben's part to fix these, in my view, very serious > bugs. I agree. I am away from France for a few more months, but I can use my laptop and fake a fan to check everything is right. I'll see what I can do in a timely fashion.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>