https://bugs.freedesktop.org/show_bug.cgi?id=33738
Summary: PageFlip urxvt/xterm screen corruptions
Product: xorg
Version: git
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Created an attachment (id=42732)
--> (https://bugs.freedesktop.org/attachment.cgi?id=42732)
Screenshot of xterm corruption after running quake3
I get urxvt/xterm after several runnings of fullscreen GL apps when PageFlip is
enabled. I am testing it usually using quake3, but it was very annoying when
appeared after some xscreensavers and I had to run xfce Terminal or restart
Xorg(killing many apps/webbrowser).
This bug probably appeared after adding real PageFlip to xf86-video-ati. Using
system xorg-driver-video-ati-6.13.2-3.x86_64 resolves the problem(but probably
its not real PageFlip, but buffer-copying). Disabling ColorTiling reduces bug
appearance(probably), but the only solution with xf86-video-ati from master, is
to explicitly disable PageFlip, or use UMS. Using system/gallium/mesa libGL
doesnt change anything, only ddx/PageFlip matters.
ArtiFacts appears mostly in and around xterm/urxvt(text is totally
smashed/unreadable), but other apps like gnome/xfce Terminals, WebKit/Gecko and
others webbrowsers are very little affected and still fully usable.
I am using PLD Th (2.99/3.0) with 64bit kernel/userspace(multilib) on 15" IBM
ThinkPad T60p UXGA(1600x1200) FlexView with FireGL 5200(r500/Radeon X1600),
core2duo T7200 and 4GB RAM, nearly identical to airlied one(except he's not
64bit capable), and I didnt tested 32bit. But maybe somebody else got 64bit
system and r500.
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