Regarding our likelihood to address this I couldn't say, sorry - out of my pay
grade :-)
From a technical perspective it would be extremely difficult if not impossible
to provide equivalent performance for rotated displays.
-Bob
On 05/12/11 09:06 PM, Jonathan C. Bailey wrote:
(oops - meant to go to the list - also sorry about the multiple copies, Bob)
That's too bad. Are there plans to eventually have this work the way I'm
wanting?
Would I be correct that if I open a support case, it will just be counted as an
RFE rather than actual bug?
-Jon
----- Original Message -----
From: "Bob Doolittle"<[email protected]>
To: "SunRay-Users mailing list"<[email protected]>
Cc: "Jonathan C. Bailey"<[email protected]>
Sent: Thursday, May 12, 2011 3:18:11 PM
Subject: Re: [SunRay-Users] Xrandr rotation - slowness
Rotation was originally done to satisfy customers doing signage who didn't care
about high performance.
Here's a response from the engineer who worked on this:
I'm not on the list, I'll let you respond. Yes, it is
expected behavior. Anything other than normal,
side by side, non-rotated Outputs will result in
a shadow framebuffer being used, and all rendering
optimizations disabled. Even on the non-rotated
Output, as dual-monitor DTU's look like a single
framebuffer to Xnewt.
-Bob
On 05/12/11 12:55 PM, Jonathan C. Bailey wrote:
Hello,
I'm currently playing with the Xrandr rotation features in SRS 5.2 and have run
into a performance issue. Here's my configuration:
Sun Ray 2FS
DVI1 = 1680x1050 LCD
DVI2 = 1680x1050 LCD
What I'm trying to do is rotate the LCD on DVI2 to the left and keep DVI1
normal. I issue:
/opt/SUNWut/bin/xrandr --output DVI2 --rotate left
..and the monitor rotates. Only issue is that performance on both monitors is
SLOW (choppy, etc). Rotating DVI2 back to normal results in good performance.
Anyone have an idea what is going on? Is this something that should be working
the way I expect?
-Jon
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