diff options
Diffstat (limited to 'src/radeon_dri.c')
| -rw-r--r-- | src/radeon_dri.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/radeon_dri.c b/src/radeon_dri.c index 2c533b1f..ed418b8c 100644 --- a/src/radeon_dri.c +++ b/src/radeon_dri.c @@ -722,7 +722,9 @@ static Bool RADEONSetAgpMode(RADEONInfoPtr info, ScreenPtr pScreen) unsigned long mode = drmAgpGetMode(info->drmFD); /* Default mode */ unsigned int vendor = drmAgpVendorId(info->drmFD); unsigned int device = drmAgpDeviceId(info->drmFD); - CARD32 agp_status = INREG(RADEON_AGP_STATUS) & mode; + /* ignore agp 3.0 mode bit from the chip as it's buggy on some cards with + pcie-agp rialto bridge chip - use the one from bridge which must match */ + CARD32 agp_status = (INREG(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode; Bool is_v3 = (agp_status & RADEON_AGPv3_MODE); unsigned int defaultMode; MessageType from; |