| Summary: | Corrupt secondary display with xrandr dual screen (Radeon Xpress 200M) | ||||||||||||||||||
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| Product: | xorg | Reporter: | Lann Martin <templ> | ||||||||||||||||
| Component: | Driver/Radeon | Assignee: | xf86-video-ati maintainers <xorg-driver-ati> | ||||||||||||||||
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> | ||||||||||||||||
| Severity: | normal | ||||||||||||||||||
| Priority: | medium | ||||||||||||||||||
| Version: | 7.3 (2007.09) | ||||||||||||||||||
| Hardware: | x86 (IA32) | ||||||||||||||||||
| OS: | Linux (All) | ||||||||||||||||||
| Whiteboard: | |||||||||||||||||||
| i915 platform: | i915 features: | ||||||||||||||||||
| Attachments: |
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Description
Lann Martin
2008-03-05 08:19:24 UTC
Created attachment 14860 [details]
xrandr --prop --verbose
Created attachment 14861 [details]
Xorg log
Created attachment 14862 [details]
xorg.conf
Can you try again with 6.8.0 or preferably ati git master? If it doesn't work there it's probably a display fifo issue. I'll see what I can find out. 6.8.0 gave the same effect, although the cursor now shows up as a vertical white line. If the line is supposed to be one pixel wide, then from the width of it the display looks to be set at 640x480, despite xrandr claiming 1024x768. I just discovered that rebooting fixes the problem until I close X. The second time X starts the problem reappears. Can you provide register dumps with radeontool for the first time you start X and the second time? Please use the version available here (http://gitweb.freedesktop.org/?p=users/airlied/radeontool.git;a=summary). (as root) ./radeontool regmatch '*' Created attachment 15297 [details]
radeontool: Before first X session
Created attachment 15298 [details]
radeontool: During first X session
Created attachment 15299 [details]
radeontool: After first X session
Created attachment 15300 [details]
radeontool: During second X session
Just as I suspected, it looks like the fifo regs: -RS480_UNK_e38 (0e38) 0x8000021b -RS480_UNK_e3c (0e3c) 0x000004d2 +RS480_UNK_e38 (0e38) 0x800001b0 +RS480_UNK_e3c (0e3c) 0x0000295c does the following help (when the screen is corrupt): radeontool regset RS480_UNK_e38 0x8000021b radeontool regset RS480_UNK_e3c 0x000004d2 you may want to do a dpms cycle after you change them (xset dpms force off). No effect. I tried it from both an xterm in the corrupt X session and from the console before running X.
> does the following help (when the screen is corrupt):
> radeontool regset RS480_UNK_e38 0x8000021b
> radeontool regset RS480_UNK_e3c 0x000004d2
>
> you may want to do a dpms cycle after you change them (xset dpms force off).
I've just committed some changes that may fix this. Can you please test ati git master? closing due to lack of feedback. |
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