diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.c b/hw/xfree86/drivers/modesetting/drmmode_display.c index 4ad6170ca..1dd6ee9ef 100644 --- a/hw/xfree86/drivers/modesetting/drmmode_display.c +++ b/hw/xfree86/drivers/modesetting/drmmode_display.c @@ -2406,21 +2406,7 @@ drmmode_crtc_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, drmModeResPtr mode_res drmmode_crtc->use_gamma_lut = drmmode_crtc->props[DRMMODE_CRTC_GAMMA_LUT_SIZE].prop_id && - /* Only use GAMMA_LUT if the size is 1024. - * - * Currently, the modesetting driver always passes a sigRGBbits value of - * 10 to xf86HandleColormaps. This causes it to create a RRCrtc gamma - * ramp of 1024 elements. If DRMMODE_CRTC_GAMMA_LUT_SIZE is larger than - * 1024 (for example on Intel GEN11, where it has a value of 262145) - * then xf86RandR12CrtcSetGamma will read past the end of the RRCrtc's - * gamma ramp when trying to copy it into the larger xf86Crtc gamma - * ramp. - * - * Since the larger GEN11 gamma ramp size hasn't been tested, just - * disable it for now. This will cause the modesetting driver to disable - * the CTM property and use the legacy DRM gamma ramp rather than the - * GAMMA_LUT property. */ - drmmode_crtc->props[DRMMODE_CRTC_GAMMA_LUT_SIZE].value == 1024 && + drmmode_crtc->props[DRMMODE_CRTC_GAMMA_LUT_SIZE].value && xf86ReturnOptValBool(drmmode->Options, OPTION_USE_GAMMA_LUT, TRUE); if (drmmode_crtc->use_gamma_lut &&