<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Short desktop freezes with Radeon 7850" href="https://bugs.freedesktop.org/show_bug.cgi?id=97940#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Short desktop freezes with Radeon 7850" href="https://bugs.freedesktop.org/show_bug.cgi?id=97940">bug 97940</a> from <a class="email" href="mailto:cpaul@redhat.com" title="Lyude Paul <cpaul@redhat.com>"> Lyude Paul</a> <pre>Hi. The reason we do so many retries in the aux handler is because monitors are notoriously bad at handling aux transactions and a lot of times just retrying until we get what we want is the only way to make things work. This being said though the radeon driver did have issues around 4.7.x with retrying aux transactions far more often then it needed to be (over 100+ times in many cases), in 4.8+ it's been fixed so that we only retry 32 times, which shows a pretty significant difference in how long reprobes take. So, I'd say try a 4.8 kernel and see if the behavior improves. If it does it'll probably be a good idea to send those patches to stable so they get merged in 4.7.y. If that doesn't work, then the next thing to check would be why your card seems to be so generous about consistently reprobing the connectors. Reprobes generally shouldn't be happening often enough for you to even notice the time required for them. To help us out with this, boot your machine with drm.debug=0x6 Added to the kernel command line, and use your computer normally until you manage to freeze it up for a second. Once you do that, just upload the full kernel log (dmesg) to here. That might give some insight onto what your card is up to.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>