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[PATCH] Enable backlight toggling for Dell Inspiron 8200 GeForce2 Go

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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 <giuseppe.bilotta@gmail.com>
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
This commit is contained in:
Giuseppe Bilotta
2007-09-27 00:22:04 +02:00
committed by Aaron Plattner
parent 02e431eb09
commit e844f10c7b
1 changed files with 11 additions and 2 deletions
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13
src/nv_driver.c
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@@ -2184,8 +2184,17 @@ static void NVBacklightEnable(NVPtr pNv, Bool on)
#endif
if(pNv->LVDS) {
if(pNv->twoHeads && ((pNv->Chipset & 0x0ff0) != 0x0110)) {
pNv->PMC[0x130C/4] = on ? 3 : 7;
if(pNv->twoHeads) {
if((pNv->Chipset & 0x0ff0) != 0x0110) {
pNv->PMC[0x130C/4] = on ? 3 : 7;
} else if(SUBVENDOR_ID(pNv->PciInfo) == 0x1028 &&
SUBDEVICE_ID(pNv->PciInfo) == 0xd4) {
// Dell Inspiron 8200, GeForce2 Go
CARD32 tmp_pcrt = pNv->PCRTC0[0x081C/4] & 0xFFFFFFFC;
if(on)
tmp_pcrt |= 0x1;
pNv->PCRTC0[0x081C/4] = tmp_pcrt;
}
}
} else {
CARD32 fpcontrol;