https://bugs.freedesktop.org/show_bug.cgi?id=30620
Summary: KMS on RS100: no display on VGA Product: DRI Version: unspecified Platform: Other OS/Version: All Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: zajec5@gmail.com
I've bug report from user with old notebook with ATI 320M (RS100). She installed openSUSE 11.3 which comes with 2.6.34 and can not get driver display anything.
The important part is that notebook's PANEL is broken and she uses VGA for external monitor.
There are two KMS cases I got tested by her: 1) "vga=0x31a" ─ black VGA screen right after booting start 2) "" (no vga) ─ black VGA screen right after booting start
So I asked to experiment with UMS a little: 3) "vga=0x31a radeon.modeset=0 3" ─ radeonfb loads, VGA works! 4) "vga=0x31a radeon.modeset=0" ─ radeonfb works, black VGA screen on X start
Without radeonfb: 5) "radeon.modeset=0 3" ─ pure console works on VGA, no radeonfb 6) "radeon.modeset=0" ─ pure console works on VGA, black VGA on X start
My conclusions: 1) KMS can not initialize VGA 2) UMS can not initialize VGA 3) radeonfb *can* initialize VGA 4) There is no conflict with radeonfb, as dropping "vga=0x31a" does not help
What else can I ask for to make it debuggable?
I thought of Xorg.0.log but it may be hard to get for her as she had to mount some USB storage in console and copy file to it. Taking "dmesg | grep drm" could be easier. Would it be useful?