Changes between Initial Version and Version 1 of Ticket #18432, comment 2


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Timestamp:
08/19/2023 08:50:47 PM (20 months ago)
Author:
Douglas R. Reno

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  • TabularUnified Ticket #18432, comment 2

    initial v1  
    22
    33{{{
    4 This only happens in GTK4 because the
    5 views opened in new tabs stay
    6 unrealized until they are shown. With
    7 the DMA-BUF rendered enabled we keep
    8 processing frames while the view is
    9 unrealized, just pretending they have
    10 been rendered on screen. This causes
    11 the page to be throttled, because it's
    12 visually idle, which changes the
    13 preferred frame rate from 60 to 30.
    14 This new condition makes
    15 DisplayUpdate::relevantForUpdateFrequen
    16 cy() always return false, leaving the
    17 last frame scheduled forever, because
    18 DisplayRefreshMonitorClient::fireDispla
    19 yRefreshIfNeeded() doesn't update the
     4This only happens in GTK4 because the views opened in new tabs stay
     5unrealized until they are shown. With the DMA-BUF rendered enabled we keep
     6processing frames while the view is unrealized, just pretending they have
     7been rendered on screen. This causes the page to be throttled, because it's
     8visually idle, which changes the preferred frame rate from 60 to 30.
     9This new condition makes DisplayUpdate::relevantForUpdateFrequen
     10cy() always return false, leaving the last frame scheduled forever, because
     11DisplayRefreshMonitorClient::fireDisplayRefreshIfNeeded() doesn't update the
    2012m_scheduled in that particular case.
    2113}}}