http://bugs.freedesktop.org/show_bug.cgi?id=15583
Summary: Panel bloom on X startup with iBook and Radeon M7
Product: xorg
Version: unspecified
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
QAContact: [EMAIL PROTECTED]
Created an attachment (id=16017)
--> (http://bugs.freedesktop.org/attachment.cgi?id=16017)
Xorg log with prints of LVDS and PIXCLK reads & writes
PowerMac4,3
White iBook G3 800MHz 32MB VRAM with Radeon Mobility 7500.
Xorg logs which print out LVDS and PIXCLK info here:
http://bigw.org/~dan/x-debug.log
I've narrowed down the issue to legacy_output.c, RADEONEnableDisplay(), around
line 865 where it does:
862 tmp |= RADEON_LVDS_DISPLAY_DIS;
863 tmp &= ~(RADEON_LVDS_ON | RADEON_LVDS_BLON |
RADEON_LVDS_EN);
864 ErrorF("%s (#%d): WRITE 0x%lX -> RADEON_LVDS_GEN_CNTL\n", __func__,
__LINE__, tmp);
865 OUTREG(RADEON_LVDS_GEN_CNTL, tmp);
the problem write is 0x52622 -> LVDS_GEN_CNTRL. At this point the panel bloom
starts. Switching VTs after X has started also corrupts the font (looks like
every other vertical pixel column is not displayed or something), not sure if
that's related at all.
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