http://bugs.freedesktop.org/show_bug.cgi?id=22608
Summary: Screen does not update when using DRI/DRM if non-root
Product: DRI
Version: DRI CVS
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: major
Priority: medium
Component: DRM/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
When bringing up an X11 desktop using latest (as of July 2 2009) kernel DRM,
radeon DRM, xf86-video-ati (master), mesa (master), and libdrm (with
libdrm_radeon built), the screen does not update in either of the two desktops
I tested (KDE 4.3, Fluxbox 1.1.1).
You can move the mouse cursor around just fine and click on things, but you
can't see what you're clicking on. (You can tell if you're on a window edge
since the mouse cursor changes).
With fluxbox, the stoppage of screen updates is immediate, no desktop ever
shows up.
With KDE 4.3, the stoppage seems to happen after the desktop is shown at around
the same time.
If I run as root I have no issues whatsoever (I've only tested fluxbox however,
not KDE).
I have the DRM module debug enabled, so I will attach dmesg output from my user
account and root account runs.
Versions:
Linux: 2.6.31-rc1, at git commit ac2a921 (x86_64, SMP kernel, Linus's tree)
Mesa: git master branch 060c7f2321f72503c14f9f3f7bb27d59d8a90224
xf86-video-ati: git master branch 8d2f712eaf1e569fd92bbe2db5aceb43b7b367d1
libdrm: git master branch 72a29340ea3225550db6b009f4e50c77c7b1f394
xorg-xserver: git master branch 3525d140567e0ad5f0184e4b37893c47239e1628
DRM and DRM-Radeon modules are compiled directly into the kernel.
One last data point -- this bug was not present for me about a week or so ago
(when I had kms-support instead of master).
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