<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [bisected] kernel 3.7.0-rc1 breaks 6950 (boot/grub2 and suspend/resume) (CAYMAN)" href="https://bugs.freedesktop.org/show_bug.cgi?id=56139#c37">Comment # 37</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [bisected] kernel 3.7.0-rc1 breaks 6950 (boot/grub2 and suspend/resume) (CAYMAN)" href="https://bugs.freedesktop.org/show_bug.cgi?id=56139">bug 56139</a> from <a class="email" href="mailto:alexandre.f.demers@gmail.com" title="Alexandre Demers <alexandre.f.demers@gmail.com>"> Alexandre Demers</a> <pre>(In reply to <a href="show_bug.cgi?id=56139#c36">comment #36</a>) > (In reply to <a href="show_bug.cgi?id=56139#c33">comment #33</a>) > > > Here is a partial kernel.log tracking what is going on at boot with some > > > debug printk in evergreen_mc_stop() and evergreen_mc_resume(). Strangely, > > > only one crtc is saved as enabled in the _stop function, but four are > > > restored in the _resume function. Pretty sure it's not the problem we are > > > looking for, but it is abnormal since only one crtc should be restored on > > > resume. This is a bug by itself showing a problem in the > > > save(stop)/restore(resume) mechanism. > > > > I should have said "... but six are restored..." instead of "... but four > > are restored..." I also made a small error in a debug string, but it doesn't > > change the read value. If you have any question on my patch, let me know. > > That issue is fixed in <a href="attachment.cgi?id=69573" name="attach_69573" title="possible fix">attachment 69573</a> <a href="attachment.cgi?id=69573&action=edit" title="possible fix">[details]</a> <a href='page.cgi?id=splinter.html&bug=56139&attachment=69573'>[review]</a> [review] which is already > upstream. I know it should have been fixed and that's why I added a printk(KERN_INFO "Restoring crtc[%d] since it was enabled.\n", i) just after it to check it. For some reason it seems to not be working properly. Have a look at my patch (<a href="attachment.cgi?id=70233" name="attach_70233" title="patch applied on 3.7.0-rc6 for debug output">attachment 70233</a> <a href="attachment.cgi?id=70233&action=edit" title="patch applied on 3.7.0-rc6 for debug output">[details]</a>) which was written on a 3.7.0-rc6 kernel. I'll add some other printk when I'll get home (like a printk just before this check to output its value).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>