<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - gbm creates BO with wrong pitch when dri3_get_modifiers returns modifiers, causing drmModeAddFB2WithModifiers to fail" href="https://bugs.freedesktop.org/show_bug.cgi?id=111306#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - gbm creates BO with wrong pitch when dri3_get_modifiers returns modifiers, causing drmModeAddFB2WithModifiers to fail" href="https://bugs.freedesktop.org/show_bug.cgi?id=111306">bug 111306</a> from <a class="email" href="mailto:lionel.g.landwerlin@linux.intel.com" title="Lionel Landwerlin <lionel.g.landwerlin@linux.intel.com>"> Lionel Landwerlin</a> <pre>Meeeeh... Looking at this I wonder how anything actually works. The first issue is that i965 doesn't appear to look at the GBM_BO_USE_SCANOUT flag in usage to compute the alignment restrictions of its surface. So if I get this right you should get the same issue without using modifiers. And we just happen to have things working by chance... Second I see a fundamental issue with the GBM api. The API doesn't let you specify a usage together with modifiers, but these are 2 sets of restrictions. It's perfectly legal to create compressed surfaces which alignment's properties don't match display requirements. Fixing the first issue is trivial. Not that easy with the second one.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>