<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing" href="https://bugs.freedesktop.org/show_bug.cgi?id=91880#c137">Comment # 137</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing" href="https://bugs.freedesktop.org/show_bug.cgi?id=91880">bug 91880</a> from <a class="email" href="mailto:dev@illwieckz.net" title="Thomas DEBESSE <dev@illwieckz.net>"> Thomas DEBESSE</a> <pre>(In reply to Chris Waters from <a href="show_bug.cgi?id=91880#c136">comment #136</a>) > Can this be done without rebooting? I'd like to test this on a liveCD > since, as I've said, I'm currently stuck on Windows. The idea of needing to > install a distro just to test this is a bit unappealing to me. It's not only it can, it must be done without rebooting, stuff in /sys are live settings, even on installed distro, you must expect to lose them on reboot, it's a fake file system, writing there does not write something on your hard disk, reading and writing there is just reading and writing bits in memory with a file system view for convenience. Beware, there is a little mistake in Jan Ziak's directives (missing a leading slash before “sys”), this is ok: $ echo manual > /sys/class/drm/card1/device/power_dpm_force_performance_level $ echo 1234567 > /sys/class/drm/card1/device/pp_dpm_sclk Do that *and do not reboot* or you'll lose the changes so you will never test them. The way to test them is to apply these changes at runtime and doing stuff without rebooting. If you reboot you'll lose the change.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>