| Summary: | radeon drm (linux 2.6.3x) loaded with modeset=1 + 2x ATI 4850 (RV770) in CrossfireX=> crash and blank screen | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | 404 Error <404errorqc> | ||||||
| Component: | DRM/Radeon | Assignee: | Default DRI bug account <dri-devel> | ||||||
| Status: | RESOLVED FIXED | QA Contact: | |||||||
| Severity: | critical | ||||||||
| Priority: | medium | ||||||||
| Version: | unspecified | ||||||||
| Hardware: | x86-64 (AMD64) | ||||||||
| OS: | Linux (All) | ||||||||
| Whiteboard: | |||||||||
| i915 platform: | i915 features: | ||||||||
| Attachments: |
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Tested again with the 2.6.33-rc4 : this time the screen becomes blank and the LED on the front panel blinks indicating no valid signal. See attached log.
lspci:
======
03:00.0 VGA compatible controller: ATI Technologies Inc RV770 [Radeon HD 4850]
03:00.1 Audio device: ATI Technologies Inc HD48x0 audio
04:00.0 VGA compatible controller: ATI Technologies Inc RV770 [Radeon HD 4850]
04:00.1 Audio device: ATI Technologies Inc HD48x0 audio
xorg.conf:
==========
Section "Device"
Identifier "ATI4850-card0"
BusID "PCI:3:0:0"
...
EndSection
Section "Device"
Identifier "ATI4850-card1"
BusID "PCI:4:0:0"
...
EndSection
Section "Screen"
Identifier "Screen0"
Device "ATI4850-card0"
...
EndSection
Created attachment 32660 [details]
/var/log/messages (2.6.33-rc4)
FYI, the first bug description and the "Log of crash" attachment were made for linux 2.6.32. I renamed the bug description as it happens under Linux 2.6.33 too. Same troubles noted under 2.6.33 and 2.6.34. Trouble gone away in 2.6.35 ! Unfortunately I face to some other issues... |
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Created attachment 32136 [details] Log of the crash From the console of a machine equipped of two ATI 4850 (RV770) linked in CrossfireX loading the radeon kernel module with modeset=1 results in a crash (see attached log) and a black screen. Disabling KMS makes the the radeon kernel module being loaded without any issues. When the screen turns black, the LED of my monitor does not blink so a signal seems to be detected by the monitor (digital connection). If I can be of any help, please just mention what I should do to provide more details/traces/etc.