[RADEON:KMS:DDX] KDE editor sluggish from f8fb9312 (font rendering related)
Submitted by Damien Mir
Assigned to xf86-video-ati maintainers
Description
Commit :
RADEONPrepareAccess_CS: fallback to DFS when pixmap is in VRAM
f8fb9312
introduces serious sluggishness with KDE4 editor components / apps.
For instance with Kate, switching opened files or scrolling file content is extremely sluggish and makes Xorg eat 80-90% CPU
Same behavior with Kwrite.
No other slowdowns noticed apart from the KDE editor component.