| Summary: | Radeon HD 4650 black screen at 2560x1600 | ||||||||||||||||||
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| Product: | xorg | Reporter: | Friedrich Göpel <shado23> | ||||||||||||||||
| Component: | Driver/Radeon | Assignee: | xf86-video-ati maintainers <xorg-driver-ati> | ||||||||||||||||
| Status: | RESOLVED DUPLICATE | QA Contact: | Xorg Project Team <xorg-team> | ||||||||||||||||
| Severity: | normal | ||||||||||||||||||
| Priority: | medium | CC: | gtdev | ||||||||||||||||
| Version: | git | ||||||||||||||||||
| Hardware: | x86-64 (AMD64) | ||||||||||||||||||
| OS: | Linux (All) | ||||||||||||||||||
| Whiteboard: | |||||||||||||||||||
| i915 platform: | i915 features: | ||||||||||||||||||
| Attachments: |
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Description
Friedrich Göpel
2010-02-27 04:52:26 UTC
Created attachment 33617 [details] [review] Xorg log Created attachment 33618 [details] [review] dmesg Created attachment 33619 [details]
Xorg log using nouveau
Since you are using kms, you should try a newer kernel (2.6.33 or drm-radeon-testing). If you want to try ums, boot with radeon.modeset=0 and try xf86-video-ati from git master. I just tried it with a merge of 2.6.33 and drm-radeon-testing, the driver was already a git snapshot. This didn't behave any differently though. Then I tried it with UMS, which works fine. I'm attaching new logs for both cases. Hopefully this will narrow this down enough to get this fixed. If there is anything else I should test or provide, do ask. Created attachment 33626 [details]
dmesg 2.6.33+radeon-testing kms
Created attachment 33627 [details]
Xorg.0.log 2.6.33+radeon-testing kms
Created attachment 33628 [details]
dmesg 2.6.33+radeon-testing ums
Created attachment 33629 [details]
Xorg.0.log 2.6.33+radeon-testing ums
(In reply to comment #0) > Using a Radeon HD 4650 with a LG W3000H screen, with either git drivers or the > ones that come with the ubuntu lucid beta, results in a black screen on boot. I'm getting something similar, and I have something for you to try: Start the system with UMS (i.e., the radeon.modeset=0 kernel parameter). When you are on the login screen, switch to a console, kill the desktop manager, and unload the "radeon" module. Once you unloaded it successfully, try manually loading it with the "modeset=1" parameter. If you get a high-res console then, start the desktop manager, and you should be fine. Fun thing is, that usually works for me, I get working KMS even on a dual-monitor setup on a Radeon HD4350 and an HD4870 that way, on the 4350 it will run stable for several weeks with an OpenGL accelerated KDE desktop without even showing graphical glitches. However, if I start without the modeset=0 parameter, my system will come up with a black screen once the module is (auto)loaded, and eventually freeze. I tried debugging via serial console, but nothing unusual came up. Running a 2.6.33 kernel from Debian experimental repository, as well as radeon X drivers from there (currently 6.13.0). (In reply to comment #10) > Start the system with UMS (i.e., the radeon.modeset=0 kernel parameter). When > you are on the login screen, switch to a console, kill the desktop manager, and > unload the "radeon" module. Once you unloaded it successfully, try manually > loading it with the "modeset=1" parameter. If you get a high-res console then, > start the desktop manager, and you should be fine. I'll give that a try, if true this would mean that KMS is initializing something wrong and that the rest of the modesetting code isn't the problem here. Otherwise it should fail as well. I've tried a fresh radeon-testing checkout plus newest git drivers though, hoping that it might have 'accidentally' been fixed, but sadly it's still the same. *** This bug has been marked as a duplicate of bug 27001 *** |
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