[PLUG] sandybridge video
Carlos Konstanski
ckonstanski at pippiandcarlos.com
Sun Aug 28 03:21:12 UTC 2011
Just got a Thinkpad with a Core 15 and a Sandybridge video card. The video
is acting odd in certain X windows but not others. So far I see xterm,
emacs, a qemu guest VM and the Android emulator affected.
The video will freeze until a newline is printed. It's acting like there
isn't enough buffer flushing going on. The blinking cursor will disappear in
xterm and emacs. Focusing another window and then coming back causes a
refresh, followed by another freezing fit that can only be alleviated by
another focus switch.
I wonder if there's an Xorg driver option that might cause less buffer
"smarts" and better flushing. Here's the list produced by Xorg -configure:
#Option "DRI" # [<bool>]
#Option "ColorKey" # <i>
#Option "VideoKey" # <i>
#Option "FallbackDebug" # [<bool>]
#Option "Tiling" # [<bool>]
#Option "LinearFramebuffer" # [<bool>]
#Option "Shadow" # [<bool>]
#Option "SwapbuffersWait" # [<bool>]
#Option "TripleBuffer" # [<bool>]
#Option "XvMC" # [<bool>]
#Option "XvPreferOverlay" # [<bool>]
#Option "DebugFlushBatches" # [<bool>]
#Option "DebugFlushCaches" # [<bool>]
#Option "DebugWait" # [<bool>]
#Option "HotPlug" # [<bool>]
#Option "RelaxedFencing" # [<bool>]
Thanks,
Carlos
More information about the PLUG
mailing list