diff options
| author | Alex Deucher <alex@botch2.com> | 2008-06-24 19:53:28 -0400 |
|---|---|---|
| committer | Alex Deucher <alex@botch2.com> | 2008-06-24 19:53:28 -0400 |
| commit | e78e8a21b4040cd7f1983c241c860d9209398396 (patch) | |
| tree | da850f104799845b0ae75722b60bd94cd98f0a5e | |
| parent | faa4b4b8dbe9b8a452cfa60d53874350bb04e0cb (diff) | |
IGP: attempt to fix VGA on IGP chips
VGA has never worked on some IGP chips. While the chip only has
one DAC, it appears to use a mix of Primary DAC and TVDAC controls.
See bug 15708
| -rw-r--r-- | src/legacy_output.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/legacy_output.c b/src/legacy_output.c index 4df81abd..9c9ebb9f 100644 --- a/src/legacy_output.c +++ b/src/legacy_output.c @@ -727,6 +727,14 @@ RADEONEnableDisplay(xf86OutputPtr output, BOOL bEnable) save->crtc2_gen_cntl |= RADEON_CRTC2_CRT2_ON; } tv_dac_change = 1; + /* IGP chips seem to use a mix of Primary and TVDAC controls */ + if (info->IsIGP) { + tmp = INREG(RADEON_CRTC_EXT_CNTL); + tmp |= RADEON_CRTC_CRT_ON; + OUTREG(RADEON_CRTC_EXT_CNTL, tmp); + save->crtc_ext_cntl |= RADEON_CRTC_CRT_ON; + RADEONDacPowerSet(pScrn, bEnable, TRUE); + } } } else if (radeon_output->MonType == MT_DFP) { if (radeon_output->TMDSType == TMDS_INT) { @@ -807,6 +815,14 @@ RADEONEnableDisplay(xf86OutputPtr output, BOOL bEnable) save->crtc2_gen_cntl &= ~RADEON_CRTC2_CRT2_ON; } } + /* IGP chips seem to use a mix of Primary and TVDAC controls */ + if (info->IsIGP) { + tmp = INREG(RADEON_CRTC_EXT_CNTL); + tmp &= ~RADEON_CRTC_CRT_ON; + OUTREG(RADEON_CRTC_EXT_CNTL, tmp); + save->crtc_ext_cntl &= ~RADEON_CRTC_CRT_ON; + RADEONDacPowerSet(pScrn, bEnable, TRUE); + } } } else if (radeon_output->MonType == MT_DFP) { if (radeon_output->TMDSType == TMDS_INT) { @@ -1367,6 +1383,7 @@ RADEONInitOutputRegisters(ScrnInfoPtr pScrn, RADEONSavePtr save, { Bool IsPrimary = crtc_num == 0 ? TRUE : FALSE; RADEONOutputPrivatePtr radeon_output = output->driver_private; + RADEONInfoPtr info = RADEONPTR(pScrn); if (crtc_num == 0) RADEONInitRMXRegisters(output, save, mode); @@ -1376,6 +1393,9 @@ RADEONInitOutputRegisters(ScrnInfoPtr pScrn, RADEONSavePtr save, RADEONInitDACRegisters(output, save, mode, IsPrimary); } else { RADEONInitDAC2Registers(output, save, mode, IsPrimary); + /* IGP chips seem to use a mix of primary and TVDAC controls */ + if (info->IsIGP) + RADEONInitDACRegisters(output, save, mode, IsPrimary); } } else if (radeon_output->MonType == MT_LCD) { RADEONInitLVDSRegisters(output, save, mode, IsPrimary); |