From 53dd03d038a306604364609da4fbff1f77cdcfa0 Mon Sep 17 00:00:00 2001 From: Giuseppe Bilotta Date: Thu, 27 Sep 2007 01:27:20 +0200 Subject: [PATCH] xf86-video-nouveau: enable backlight toggling for Dell Inspiron 8200 GeForce2 Go GeForce2 Go and similar cards are explicitly excluded from the NVBacklightEnable() code (purposedly, as the code used for the other chipsets on x86 has no effect.) This causes the backlight to remain active on laptops equipped with such a card, even when DPMS modes were active. Fix the issue for Dell Inspiron 8200 by introducing the proper registry writes to toggle the backlight. Signed-off-by: Giuseppe Bilotta --- src/nv_driver.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/src/nv_driver.c b/src/nv_driver.c index a169e46..782624e 100644 --- a/src/nv_driver.c +++ b/src/nv_driver.c @@ -1843,8 +1843,16 @@ static void NVBacklightEnable(NVPtr pNv, Bool on) #endif if(pNv->LVDS) { - if(pNv->twoHeads && ((pNv->Chipset & 0x0ff0) != CHIPSET_NV11)) { - nvWriteMC(pNv, 0x130C, on ? 3 : 7); + if(pNv->twoHeads) { + if ((pNv->Chipset & 0x0ff0) != CHIPSET_NV11) { + nvWriteMC(pNv, 0x130C, on ? 3 : 7); + } else if((PCI_DEV_SUBVENDOR_ID(pNv->PciInfo) == 0x1028) && (PCI_DEV_SUBDEVICE_ID(pNv->PciInfo) == 0xd4)) { + // Dell Inspiron 8200, GeForce2 Go + CARD32 tmp_pcrt; + tmp_pcrt = nvReadCRTC0(pNv, NV_PCRTC_GPIO_EXT) & 0xFFFFFFFC; + if(on) tmp_pcrt |= 0x1; + nvWriteCRTC0(pNv, NV_PCRTC_GPIO_EXT, tmp_pcrt); + } } } else { CARD32 fpcontrol; -- 2.32.0.93.g670b81a890