<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Vsync does not work in portrait mode"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=93494">93494</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Vsync does not work in portrait mode
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Driver/Radeon
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>xorg-driver-ati@lists.x.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>jmoroney@hawaii.edu
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=120680" name="attach_120680" title="dmesg output">attachment 120680</a> <a href="attachment.cgi?id=120680&action=edit" title="dmesg output">[details]</a></span>
dmesg output

Using a dual monitor setup I get a really annoying tearing effect on my
portrait oriented monitor. Card is a 260x, using current radeonsi driver
(current everything) as of dec 24th 2015 on fedora 23.

dmesg output is attached. Xorg doesn't seem to have a log (maybe I'm missing
it). Output of
journalctl | grep -i xorg
is as follows

jon@localhost ~> journalctl | grep -i xorg
Dec 22 17:16:48 localhost.localdomain systemd[1]: Started ABRT Xorg log
watcher.
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: Select
the "xorg" product for bugs you find in this release.
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: Build
ID: xorg-x11-server 1.18.0-0.4.20150907.fc23
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (==)
Log file: "/home/jon/.local/share/xorg/Xorg.0.log", Time: Tue Dec 22 22:17:18
2015
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (==)
Using config directory: "/etc/X11/xorg.conf.d"
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (==)
Using system config directory "/usr/share/X11/xorg.conf.d"
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (==)
ModulePath set to "/usr/lib64/xorg/modules"
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/extensions/libglx.so
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/drivers/ati_drv.so
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/drivers/radeon_drv.so
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/drivers/intel_drv.so
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/drivers/fbdev_drv.so
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/drivers/vesa_drv.so
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/libfbdevhw.so
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/libglamoregl.so
Dec 22 17:17:18 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/libfb.so
Dec 22 17:17:19 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (II)
Loading /usr/lib64/xorg/modules/input/libinput_drv.so
Dec 22 12:21:32 localhost.localdomain /usr/libexec/gdm-x-session[2016]: (EE)
Please also check the log file at "/home/jon/.local/share/xorg/Xorg.0.log" for
additional information.
Dec 22 12:21:32 localhost.localdomain audit[2022]: ANOM_ABEND auid=1000
uid=1000 gid=1000 ses=1 subj=unconfined_u:unconfined_r:xserver_t:s0-s0:c0.c1023
pid=2022 comm="Xorg" exe="/usr/libexec/Xorg" sig=6
Dec 22 12:21:40 localhost.localdomain systemd-coredump[3364]: Process 2022
(Xorg) of user 1000 dumped core.
                                                              #2 
0x000000000059d48e OsAbort (Xorg)
                                                              #3 
0x00000000005a3e77 FatalError (Xorg)
                                                              #4 
0x000000000049d721 switch_to (Xorg)
                                                              #5 
0x000000000049e103 xf86CloseConsole (Xorg)
                                                              #6 
0x0000000000479305 ddxGiveUp (Xorg)
                                                              #7 
0x00000000005a3072 AbortServer (Xorg)
                                                              #8 
0x00000000005a3ead FatalError (Xorg)
                                                              #9 
0x000000000049d721 switch_to (Xorg)
                                                              #10
0x000000000049e103 xf86CloseConsole (Xorg)
                                                              #11
0x0000000000479305 ddxGiveUp (Xorg)
                                                              #12
0x000000000043aab9 dix_main (Xorg)
                                                              #14
0x0000000000424b79 _start (Xorg)
Dec 22 12:21:59 localhost.localdomain systemd[1]: Started ABRT Xorg log
watcher.
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: Select
the "xorg" product for bugs you find in this release.
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: Build
ID: xorg-x11-server 1.18.0-0.4.20150907.fc23
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (==)
Log file: "/home/jon/.local/share/xorg/Xorg.0.log", Time: Tue Dec 22 17:23:28
2015
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (==)
Using config directory: "/etc/X11/xorg.conf.d"
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (==)
Using system config directory "/usr/share/X11/xorg.conf.d"
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (==)
ModulePath set to "/usr/lib64/xorg/modules"
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/extensions/libglx.so
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/drivers/ati_drv.so
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/drivers/radeon_drv.so
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/drivers/intel_drv.so
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/drivers/fbdev_drv.so
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/drivers/vesa_drv.so
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/libfbdevhw.so
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/libglamoregl.so
Dec 22 12:23:28 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/libfb.so
Dec 22 12:23:29 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (II)
Loading /usr/lib64/xorg/modules/input/libinput_drv.so
Dec 22 20:36:46 localhost.localdomain /usr/libexec/gdm-x-session[1996]: (EE)
Please also check the log file at "/home/jon/.local/share/xorg/Xorg.0.log" for
additional information.
Dec 22 20:36:46 localhost.localdomain audit[2002]: ANOM_ABEND auid=1000
uid=1000 gid=1000 ses=1 subj=unconfined_u:unconfined_r:xserver_t:s0-s0:c0.c1023
pid=2002 comm="Xorg" exe=2F7573722F6C6962657865632F586F7267202864656C6574656429
sig=6
Dec 22 20:36:56 localhost.localdomain systemd-coredump[26127]: Process 2002
(Xorg) of user 1000 dumped core.
Dec 23 10:07:55 localhost.localdomain systemd[1]: Started ABRT Xorg log
watcher.
Dec 23 10:07:55 localhost.localdomain systemd[1]: Starting ABRT Xorg log
watcher...
Dec 23 10:07:55 localhost.localdomain audit[1]: SERVICE_START pid=1 uid=0
auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0
msg='unit=abrt-xorg comm="systemd" exe="/usr/lib/systemd/systemd" hostname=?
addr=? terminal=? res=success'
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: Build
ID: xorg-x11-server 1.18.0-2.fc23
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (==)
Log file: "/home/jon/.local/share/xorg/Xorg.0.log", Time: Wed Dec 23 10:08:22
2015
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (==)
Using config directory: "/etc/X11/xorg.conf.d"
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (==)
Using system config directory "/usr/share/X11/xorg.conf.d"
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (==)
ModulePath set to "/usr/lib64/xorg/modules"
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/extensions/libglx.so
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/drivers/ati_drv.so
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/drivers/radeon_drv.so
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/drivers/intel_drv.so
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/drivers/fbdev_drv.so
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/drivers/vesa_drv.so
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/libfbdevhw.so
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/libglamoregl.so
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/libfb.so
Dec 23 10:08:22 localhost.localdomain /usr/libexec/gdm-x-session[2044]: (II)
Loading /usr/lib64/xorg/modules/input/libinput_drv.so
Dec 23 10:48:58 localhost.localdomain sudo[4831]:      jon : TTY=pts/0 ;
PWD=/home/jon ; USER=root ; COMMAND=/bin/gedit
/etc/X11/xorg.conf.d/20-radeon.conf
Dec 23 21:59:59 localhost.localdomain systemd[1]: Stopping ABRT Xorg log
watcher...
Dec 23 21:59:59 localhost.localdomain systemd[1]: Stopped ABRT Xorg log
watcher.
Dec 23 21:59:59 localhost.localdomain audit[1]: SERVICE_STOP pid=1 uid=0
auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0
msg='unit=abrt-xorg comm="systemd" exe="/usr/lib/systemd/systemd" hostname=?
addr=? terminal=? res=success'
Dec 24 16:09:30 localhost.localdomain systemd[1]: Started ABRT Xorg log
watcher.
Dec 24 16:09:30 localhost.localdomain systemd[1]: Starting ABRT Xorg log
watcher...
Dec 24 16:09:30 localhost.localdomain audit[1]: SERVICE_START pid=1 uid=0
auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0
msg='unit=abrt-xorg comm="systemd" exe="/usr/lib/systemd/systemd" hostname=?
addr=? terminal=? res=success'
Dec 24 16:10:00 localhost.localdomain /usr/libexec/gdm-x-session[2029]: Build
ID: xorg-x11-server 1.18.0-2.fc23
Dec 24 16:10:00 localhost.localdomain /usr/libexec/gdm-x-session[2029]: (==)
Log file: "/home/jon/.local/share/xorg/Xorg.0.log", Time: Thu Dec 24 16:10:00
2015
Dec 24 16:10:00 localhost.localdomain /usr/libexec/gdm-x-session[2029]: (==)
Using config directory: "/etc/X11/xorg.conf.d"
Dec 24 16:10:00 localhost.localdomain /usr/libexec/gdm-x-session[2029]: (==)
Using system config directory "/usr/share/X11/xorg.conf.d"
Dec 24 16:10:00 localhost.localdomain /usr/libexec/gdm-x-session[2029]: (==)
ModulePath set to "/usr/lib64/xorg/modules"
Dec 24 16:10:00 localhost.localdomain /usr/libexec/gdm-x-session[2029]: (II)
Loading /usr/lib64/xorg/modules/extensions/libglx.so
Dec 24 16:10:00 localhost.localdomain /usr/libexec/gdm-x-session[2029]: (II)
Loading /usr/lib64/xorg/modules/drivers/radeon_drv.so
Dec 24 16:10:00 localhost.localdomain /usr/libexec/gdm-x-session[2029]: (II)
Loading /usr/lib64/xorg/modules/libglamoregl.so
Dec 24 16:10:00 localhost.localdomain /usr/libexec/gdm-x-session[2029]: (II)
Loading /usr/lib64/xorg/modules/libfb.so
Dec 24 16:10:01 localhost.localdomain /usr/libexec/gdm-x-session[2029]: (II)
Loading /usr/lib64/xorg/modules/input/libinput_drv.so</pre>
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