<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#c128">Comment # 128</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:0xe2.0x9a.0x9b@gmail.com" title="Jan Ziak <0xe2.0x9a.0x9b@gmail.com>"> Jan Ziak</a> <pre>(In reply to Chris Waters from <a href="show_bug.cgi?id=91880#c127">comment #127</a>) > Second question, is there any way to just force the memory clock to stay at > 1500MHz? If the bug is caused by memory switching (and not the memory being > clocked way too high), then forcing the memory to stay at the max standard > clock should give us the stability of 150MHz. Some months ago, I thought it was just mclk switching. But today I am not so sure about it. Executing the following steps on my machine with an R9 390: - lock mclk to 1500MHz - start playing Mad Max via Steam - switch to the game map via gamepad or keyboard (<a href="https://www.google.sk/search?q=mad+max+game+map&tbm=isch">https://www.google.sk/search?q=mad+max+game+map&tbm=isch</a>) results in noticeable screen image flickering. If I disable the lowest 300 MHz shader clock, so that the minimum shader clock is 500 MHz and maximum is 1000 MHz, the flickering disappears.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>