> Hi guys,
>
> I just came across thinkpad forum thread where people are discuss
about
> hardware mods for getting FHD screen on lenovo x220/x230 laptops.
> http://forum.thinkpads.com/viewtopic.php?f=43&t=106919&start=90
>
> What do you guys think, will this affect coreboot at all? Are there
any
> necessary steps before playing with the screen?
>
Hi all,
I was wondering whether there was any progress on this. I have a modded
X230 and managed to patch the i915 kernel driver to disable LVDS and
get my screen correctly detected as eDP using the stock uefi bios. The
patch is attached. Now I am thinking of flashing coreboot, mainly to
get rid of the dreadful wlan whitelist, but I am afraid of losing the
functionality...
Basically the mod consists of an interface board that rewires the dock
DP port (DP-3, PORT_D) to the fhd panel. It would be great if we could
patch coreboot to natively support the eDP FHD screen. I am not really
an expert, all I could come up with was to change
register "gpu_panel_port_select" = "0" with "3" (that should be DP_D)
in mainboard/lenovo/x230/devicetree.cb but I don't think this will
suffice at all...
Here is my intel-gfx post for reference
http://lists.freedesktop.org/archives/intel-gfx/2015-July/072787.html
Best regards
diff -uNr linux-4.1.3-vanilla/drivers/gpu/drm/i915/intel_dp.c linux-4.1.3/drivers/gpu/drm/i915/intel_dp.c
--- linux-4.1.3-vanilla/drivers/gpu/drm/i915/intel_dp.c 2015-07-21 18:10:33.000000000 +0100
+++ linux-4.1.3/drivers/gpu/drm/i915/intel_dp.c 2015-08-02 11:11:37.305576415 +0100
@@ -102,8 +102,7 @@
static bool is_edp(struct intel_dp *intel_dp)
{
struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
-
- return intel_dig_port->base.type == INTEL_OUTPUT_EDP;
+ return intel_dig_port->base.type == INTEL_OUTPUT_EDP || strncmp(intel_dp->attached_connector->base.name, "DP-3", 4) == 0;
}
static struct drm_device *intel_dp_to_dev(struct intel_dp *intel_dp)
@@ -4743,7 +4742,7 @@
[PORT_D] = PORT_IDPD,
};
- if (port == PORT_A)
+ if (port == PORT_D)
return true;
if (!dev_priv->vbt.child_dev_num)
diff -uNr linux-4.1.3-vanilla/drivers/gpu/drm/i915/intel_lvds.c linux-4.1.3/drivers/gpu/drm/i915/intel_lvds.c
--- linux-4.1.3-vanilla/drivers/gpu/drm/i915/intel_lvds.c 2015-07-21 18:10:33.000000000 +0100
+++ linux-4.1.3/drivers/gpu/drm/i915/intel_lvds.c 2015-07-31 09:44:22.756192751 +0100
@@ -552,201 +552,10 @@
static const struct dmi_system_id intel_no_lvds[] = {
{
.callback = intel_no_lvds_dmi_callback,
- .ident = "Apple Mac Mini (Core series)",
+ .ident = "modded Thinkpad X230",
.matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Apple Mac Mini (Core 2 series)",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Macmini2,1"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "MSI IM-945GSE-A",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "MSI"),
- DMI_MATCH(DMI_PRODUCT_NAME, "A9830IMS"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Dell Studio Hybrid",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Studio Hybrid 140g"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Dell OptiPlex FX170",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex FX170"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "AOpen Mini PC",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "AOpen"),
- DMI_MATCH(DMI_PRODUCT_NAME, "i965GMx-IF"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "AOpen Mini PC MP915",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
- DMI_MATCH(DMI_BOARD_NAME, "i915GMx-F"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "AOpen i915GMm-HFS",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
- DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "AOpen i45GMx-I",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
- DMI_MATCH(DMI_BOARD_NAME, "i45GMx-I"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Aopen i945GTt-VFA",
- .matches = {
- DMI_MATCH(DMI_PRODUCT_VERSION, "AO00001JW"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Clientron U800",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
- DMI_MATCH(DMI_PRODUCT_NAME, "U800"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Clientron E830",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
- DMI_MATCH(DMI_PRODUCT_NAME, "E830"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Asus EeeBox PC EB1007",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "EB1007"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Asus AT5NM10T-I",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
- DMI_MATCH(DMI_BOARD_NAME, "AT5NM10T-I"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Hewlett-Packard HP t5740",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, " t5740"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Hewlett-Packard t5745",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "hp t5745"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Hewlett-Packard st5747",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "hp st5747"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "MSI Wind Box DC500",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
- DMI_MATCH(DMI_BOARD_NAME, "MS-7469"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Gigabyte GA-D525TUD",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."),
- DMI_MATCH(DMI_BOARD_NAME, "D525TUD"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Supermicro X7SPA-H",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
- DMI_MATCH(DMI_PRODUCT_NAME, "X7SPA-H"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Fujitsu Esprimo Q900",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Q900"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Intel D410PT",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),
- DMI_MATCH(DMI_BOARD_NAME, "D410PT"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Intel D425KT",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),
- DMI_EXACT_MATCH(DMI_BOARD_NAME, "D425KT"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Intel D510MO",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),
- DMI_EXACT_MATCH(DMI_BOARD_NAME, "D510MO"),
- },
- },
- {
- .callback = intel_no_lvds_dmi_callback,
- .ident = "Intel D525MW",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Intel"),
- DMI_EXACT_MATCH(DMI_BOARD_NAME, "D525MW"),
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "2324B14"),
},
},
--
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