FYI - the General Dynamics Pulsar and Meteor range of Sun Ray thin clients
fully support rotation on the device with no loss of performance.
Andy
Bob Doolittle wrote:
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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