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https://bugs.freedesktop.org/show_bug.cgi?id=3834
Summary: Only first X server can do DRI in fast user switching
mode
Product: DRI
Version: XOrg CVS
Platform: PC
OS/Version: Linux
Status: NEW
Severity: enhancement
Priority: P5
Component: General
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
I run Xorg 6.8.99.15, and I've just started using KDE's fast user switching,
which fires up a new X server instance for each user. I've noticed that the
second user get a very slow X server compared to the first user, and upon
looking in Xorg.0.log and Xorg.1.log, noticed that Xorg.1.log contains the
following:
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 6, (OK)
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 6, (OK)
drmOpenByBusid: Searching for BusID pci:0000:01:00.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 6, (OK)
drmOpenByBusid: drmOpenMinor returns 6
drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
(II) RADEON(0): [drm] DRM interface version 1.2
(II) RADEON(0): [drm] created "radeon" driver at busid "pci:0000:01:00.0"
(II) RADEON(0): [drm] drmAddMap failed
(EE) RADEON(0): [dri] DRIScreenInit failed. Disabling DRI.
Xorg.0.log contains the following in the same place:
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (No such device or address)
drmOpenDevice: open result is -1, (No such device or address)
drmOpenDevice: Open failed
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (No such device or address)
drmOpenDevice: open result is -1, (No such device or address)
drmOpenDevice: Open failed
drmOpenByBusid: Searching for BusID pci:0000:01:00.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 6, (OK)
drmOpenByBusid: drmOpenMinor returns 6
drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
(II) RADEON(0): [drm] loaded kernel module for "radeon" driver
(II) RADEON(0): [drm] DRM interface version 1.2
(II) RADEON(0): [drm] created "radeon" driver at busid "pci:0000:01:00.0"
(II) RADEON(0): [drm] added 8192 byte SAREA at 0xf91d1000
(II) RADEON(0): [drm] mapped SAREA 0xf91d1000 to 0xafa8e000
If I'm understanding correctly, this means that the accelerator on my Radeon
9200SE card is only used in DMA mode (for Render and XV acceleration) on the
first instance, and not the second. Since both instances are exclusive
(different virtual terminals on the same console), it would be nice to have
acceleration available on both heads.
I've marked this as low priority, and severity enhancement, since it's just a
nicety at the moment, but if someone has time and energy available, I'd
appreciate it being looked into.
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