<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7654.12"> <TITLE>The RandR-"unable to set rotation" issue in AMD Geode LX platform</TITLE> </HEAD> <BODY>  Hi, Tim & Frank,         From the Ubuntu BTS: <A HREF="https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-geode">https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-geode</A>, I sum up two unsolved issue.         The first issue is about the geode driver do not display 1024x600 screen in some 16:9 netbook, because the Geode LX driver does not support the 16:9 screen, in common situation, the default is setup to 4:3 screen (1024x768), so some guys want to set 1024x600, the only method is add a common line in xorg.conf file, see following: in Section "Monitor" Add: Modeline "1024x600" 48.96 1024 1064 1168 1312 600 601 604 622 -Hsync +Vsync         After that, the Geode-driver may run on a unstable environment, but I suggest some guys use this method test the machine on a long run time. Once occur the unstable instance, through BTS to tell me. I'll follow it.         The second issue is the RandR-"unable to set rotation" issue, now I have been established three Xorg environments, only use the XRandR client program (it can download from <A HREF="http://cgit.freedesktop.org/xorg/">http://cgit.freedesktop.org/xorg/</A> ). The phenomenon, see below: 1).Xserver-1.6.4/Geode driver-2.11.7         Run: xrandr --output default --rotate left         Phenomenon: The screen properly rotate         Run: xrandr --output default --rotate normal --auto         Phenomenon: The screen return to normal state 2).Xserver-1.7.1/Geode driver-2.11.7         Run: xrandr --output default --rotate left         Phenomenon: The screen turn to black         Run: xrandr --output default --rotate normal --auto         Phenomenon: The screen return to normal state 3).Xserver-1.8.99/Geode driver-2.11.8         Run: xrandr --output default --rotate left         Phenomenon: The screen turn to black         Run: xrandr --output default --rotate normal --auto         Phenomenon: The screen does not return to normal state, still black         Now the problem become more and more urgent, I use ddd tools to trace the part of Xserver-ProcRRDispatch, Alex Deucher (from xorg-devel) suggest focus on the randr crtc hooks for allocating the shadow pixmap used for rotation (shadow_create, shadow_allocate, shadow_destroy). I'll follow this issue. Thanks, Hunk Cui   -----Original Message----- From: Cui, Hunk Sent: Thursday, May 27, 2010 10:36 AM To: Writer, Tim Cc: Huang, FrankR; Torres, Rigo Subject: RE: About "unable to set rotation" issue Hi, Tim,         I gave a try with 1.7.1 server on rotation following your suggestion. Geode driver 2.11.7, In our platform, the <OUTPUT> name is "default", (BTW: In general use $ xrandr -q to discover the appropriate output names for your configuration, the reference link: <A HREF="http://www.thinkwiki.org/wiki/Xorg_RandR_1.2">http://www.thinkwiki.org/wiki/Xorg_RandR_1.2</A>) When I tried: "xrandr --output default --rotate left". The screen turn to black. Then tried: "xrandr --output default --rotate normal --auto". The screen return to normal. Now we doubt it is a bug, because from 1.6.4 server to 1.7.1 server, the part of RandR have been updated and changed from source code. Tim, Are there any other ideas? Thanks, Hunk Cui -----Original Message----- From: Huang, FrankR Sent: Thursday, May 27, 2010 9:30 AM To: Torres, Rigo Cc: Writer, Tim; Cui, Hunk Subject: RE: About "unable to set rotation" issue Rigo,         Ok. Hunk will give a try with 1.7.1 server on rotation following Tim's suggestion.         If you have any question on build.sh method, please feel free to mail me. Thanks, Frank -----Original Message----- From: Torres, Rigo Sent: 2010年5月27日 1:00 To: Huang, FrankR Cc: Writer, Tim; Cui, Hunk Subject: RE: About "unable to set rotation" issue Hi Frank, I have not upgraded to Xserver 1.7.1, so I have not tested rotation with Xserver 1.7.1. I am still having trouble with jhbuild even after Tim's suggestions. If I can't get it to build this week. I will just try your long build method. Let us know if Tim's suggestions for ration work with Xserver 1.7.1. Rigo -----Original Message----- From: Writer, Tim [<A HREF="mailto:Tim.Writer@amd.com">mailto:Tim.Writer@amd.com</A>] Sent: Wednesday, May 26, 2010 8:14 AM To: Cui, Hunk Cc: Torres, Rigo; Huang, FrankR Subject: Re: About "unable to set rotation" issue On Wed, May 26 2010, "Cui, Hunk" <Hunk.Cui@amd.com> wrote: > Hi, Rigo, >  >         As you said on Ubuntu BTS, > <A HREF="https://bugs.launchpad.net/ubuntu/+source/">https://bugs.launchpad.net/ubuntu/+source/</A> > xserver-xorg-video-geode/+bug/377929 > About “unable to set rotation on AMD Geode LX800”, you used Ubuntu > 9.10 which comes with generic kernel 2.6.31-17 and Xserver 1.6.4, > geode-driver 2.11.6, I also able to rotate the screen just fine with > the default geode driver that comes with this distribution using > Xrandr. Rotation is working just fine with 'xrandr'. I used command such as: >> xrandr -o left >> xrandr -o right >> xrandr -o inverted >> xrandr -o normal >  > When I use Xserver 1.7.1, geode-driver 2.11.7, >> xrandr -o left >> xrandr -o right >> xrandr -o inverted > The screen are black and unable to return. Have you tried:     xrandr --output OUTPUT --rotate left where OUTPUT would be replaced by one of the outputs shown when you run `xrandr' without any options. The `-o' options is a RandR 1.0/1.1 command and may exercise a different driver code path from the RandR 1.2 `--rotate' option. RandR 1.2 introduced per-output rotation which wasn't available in earlier versions. Consequently, `xrandr -o' is equivalent to rotating the entire desktop (composed of all the outputs) rather than just a specific output. Depeding on the Geode driver's support for multiple outputs and which outputs are connected, using `xrandr -o' could confuse the driver. If the screen still goes black, it would be interesting to see what this script does:     #!/bin/sh     OUTPUT=<insert output name>     xrandr --output $OUTPUT --rotate left     sleep 15     xrandr --output $OUTPUT --rotate normal --auto Tim </BODY> </HTML>