#!/bin/bash # Joshua V. Dillon # jvdillon (a) gmail (.) com # Tue Sep 6 19:04:58 EDT 2011 - initial version # Wed Sep 7 09:10:35 EDT 2011 - supported 11" because kujuntuluntufurtu is mad # Sat Sep 10 10:21:45 EDT 2011 - minor tweaks; fixed install path issue # Mon Sep 12 11:15:18 EDT 2011 - pointless minor tweaks # Fri Sep 16 08:02:18 EDT 2011 - uncommented 'extra' cp # Sun Sep 18 00:55:17 EDT 2011 - MBA4,1 (LG & Samsung) modeline # Fri Sep 23 08:46:45 EDT 2011 - MBA4,2 (Samsung) modeline (chinasailor) # Sun Dec 4 12:14:39 PST 2011 - 01_remove-unnecesary-xorg-edgers-recommendation.patch (poliva) # Sun Dec 4 13:28:42 PST 2011 - new modeline (khilman), cleaned code # # Forces the i915 driver to use the correct modeline for either # MBA4,1 or MBA4,2. This script is not suitable for any other # machine nor is it even ideal for MBA4. # # Implements hack anonymously submitted at: # https://bugs.freedesktop.org/show_bug.cgi?id=39533 # by following kernel build recipe from: # https://wiki.ubuntu.com/KernelCustomBuild # # Copyright (c) 2011 Joshua V Dillon # All rights reserved. See end-of-file for license. # ---------------------------------------------------------------- # to get modeline info: # # 1) boot with "drm.debug=0x14" and without: "nomodeset" and "i915.modeset=0" # 2) dmesg|grep -i modeline # 3) For example, for the 'MacBookAir4,2/LP133WP1-TJA3': # [drm:drm_mode_debug_printmodeline], Modeline 24:"1440x900" 60 91540 1440 1504 1546 1652 900 903 909 926 0x48 0xa # --------------------------------------------------------------- [ $(lsb_release -sir 2>/dev/null|tr -d [:space:]) != 'Ubuntu11.10' ] && \ { echo >&2 "ERROR: Must be running Ubuntu 11.10.";exit 1; } [ ${BASH_VERSION%%\.*} -lt 4 ] && \ { echo >&2 "ERROR: Must have bash version >=4.";exit 2; } # --- Modeline Information -------------------------------------- declare -A modeline # patch confirmed at: https://bugs.freedesktop.org/show_bug.cgi?id=39533#c61 modeline['MacBookAir4,1/LTH116AT01A04']='72500 1366 1398 1566 1734 768 772 776 792 0x48 0xa' # patch confirmed at: https://bugs.freedesktop.org/show_bug.cgi?id=39533#c29 modeline['MacBookAir4,1/LP116WH4-TJA3']='91540 1366 1380 1436 1500 768 769 772 800 0x48 0xa' # patch confirmed by: khilman (personal email) modeline['MacBookAir4,1/B116XW05V6']='72000 1366 1380 1436 1500 768 769 772 800 0x48 0xa' # patch confirmed by: chinasailor modeline['MacBookAir4,2/LTH133BT01A03']='88890 1440 1488 1520 1600 900 903 909 926 0x48 0xa' # patch confirmed by: author modeline['MacBookAir4,2/LP133WP1-TJA3']='91540 1440 1504 1546 1652 900 903 909 926 0x48 0xa' # --- Verify Hardware ------------------------------------------- # get aptitude because its better [ -z "$(which aptitude)" ] && sudo apt-get install aptitude # sometimes saw trailing non-printables which confuse strcmp; echo cleans-up #SysPrdNam=$(echo $(sudo dmidecode -s system-product-name)) SysPrdNam=$(cat /sys/class/dmi/id/product_name) # --- identify panel type [ -z "$(which get-edid)" ] && sudo aptitude install read-edid PanelType=$(sudo get-edid 2>/dev/null|strings -5|head -1|tr -d ' ') # sometimes get-edid doesn't work. [ -z "${PanelType}" ] && \ PanelType=$(grep -B2 "EDID (in hex)" /var/log/Xorg.0.log|head -1|tr -d '[:blank:]'|cut -d: -f2) mymodeline=(${modeline["${SysPrdNam}/${PanelType}"]}) [ -z "${mymodeline[*]}" ] && \ { echo >&2 "ERROR: '${SysPrdNam}/${PanelType}' not recognized";exit 3; } echo >&2 -e "\nSUCCESS: detected '${SysPrdNam}' with panel '${PanelType}'\n" # --- Perform Updates ------------------------------------------- if false; then tee 1>&2 <<-EOF ATTENTION: It is recommended that you use experimental drivers provided by xorg-edgers, in addition to the patch applied by this script. To install drivers from "ppa:xorg-edgers/ppa" press Y. To skip this step, press any other key. EOF read -n 1 -r choice [ ${choice,,} = 'y' ] && sudo add-apt-repository ppa:xorg-edgers/ppa fi echo >&2 "WARNING: Updating system before applying patch." sudo aptitude update -q2 sudo aptitude safe-upgrade [ -f /var/run/reboot-required ] && \ tee 1>&2 <<-EOF WARNING: Reboot required for update to complete. Proceeding anyway. You may need to re-run this script after reboot. EOF # --- Patch Driver ---------------------------------------------- # get kernel sudo aptitude install build-essential sudo apt-get build-dep --no-install-recommends linux-image-$(uname -r) apt-get source linux-image-$(uname -r) # patch cd linux-$(uname -r|cut -d- -f1)/drivers/gpu/drm/i915/ unset i patch<lfp_lvds_vbt_mode = panel_fixed_mode; DRM_DEBUG_KMS("Found panel mode in BIOS VBT tables:\n"); + panel_fixed_mode->hdisplay = ${mymodeline[++i]}; + panel_fixed_mode->hsync_start = ${mymodeline[++i]}; + panel_fixed_mode->hsync_end = ${mymodeline[++i]}; + panel_fixed_mode->htotal = ${mymodeline[++i]}; + panel_fixed_mode->vdisplay = ${mymodeline[++i]}; + panel_fixed_mode->vsync_start = ${mymodeline[++i]}; + panel_fixed_mode->vsync_end = ${mymodeline[++i]}; + panel_fixed_mode->vtotal = ${mymodeline[++i]}; + panel_fixed_mode->clock = ${mymodeline[0]}; + panel_fixed_mode->type = ${mymodeline[++i]}; + panel_fixed_mode->flags = ${mymodeline[++i]}; + drm_mode_set_name(panel_fixed_mode); drm_mode_debug_printmodeline(panel_fixed_mode); temp_mode = kzalloc(sizeof(*temp_mode), GFP_KERNEL); EOF # --- Install Driver -------------------------------------------- # build make -C /lib/modules/$(uname -r)/build M=$(pwd) modules # install sudo make -C /lib/modules/$(uname -r)/build M=$(pwd) modules_install # I have no idea why the following command seems to be necessary for some # people. For some reason the kernel prefers the drivers/gpu/drm over extra, # which to my view defeats the point of having extra (a place to shadow things) # this is a hack (on top of a hack!): # make (one-time) backup [ -e /lib/modules/$(uname -r)/kernel/drivers/gpu/drm/i915/i915.ko.bak ] || \ sudo cp /lib/modules/$(uname -r)/kernel/drivers/gpu/drm/i915/i915.ko \ /lib/modules/$(uname -r)/kernel/drivers/gpu/drm/i915/i915.ko.bak # overwrite sudo cp /lib/modules/$(uname -r)/extra/i915.ko \ /lib/modules/$(uname -r)/kernel/drivers/gpu/drm/i915/i915.ko # depmod,update-initramfs are necessary? sudo depmod -a sudo update-initramfs -u # check install locations if [ ! -e "/lib/modules/$(uname -r)/extra/i915.ko" ]; then echo >&2 "WARNING: The i915 module did not install to the expected location." fi echo >&2 -e "ATTENTION: The following i915 driver will be used after reboot:" \ "\n " $(modinfo i915|head -1|cut -b17-) exit 0 # --- Miscellaneous Documentation ------------------------------- # you may also find this useful: # sudo aptitude install intel-gpu-tools # sudo intel_backlight 50 # git clone git://kernel.ubuntu.com/ubuntu/ubuntu-oneiric.git # https://spreadsheets.google.com/spreadsheet/viewform?formkey=dHFhcmFieEZzMmtSZjdwWDNhNVlPOFE6MQ # https://spreadsheets.google.com/spreadsheet/ccc?key=0Aq4LUv8YJH25dHFhcmFieEZzMmtSZjdwWDNhNVlPOFE&hl=en_US#gid=0 # MacBookAir4,1 # 38 LP116WH4-TJA3 # 51 LTH116AT01A04 # MacBookAir4,2 # 190 LP133WP1-TJA3 # 150 LTH133BT01A03 # 3 MBA11 - i5, # 18 MBA11 - i5,LP116WH4-TJA3 # 32 MBA11 - i5,LTH116AT01A04 # 3 MBA11 - i5,LTH133BT01A03 # 6 MBA11 - i7, # 18 MBA11 - i7,LP116WH4-TJA3 # 1 MBA11 - i7,LP133WP1-TJA3 # 17 MBA11 - i7,LTH116AT01A04 # 1 MBA11 - i7,LTH133BT01A03 # # 4 MBA13 - i5, # 1 MBA13 - i5,? # 1 MBA13 - i5,IDK. I have an LP # 2 MBA13 - i5,LP116WH4-TJA3 #114 MBA13 - i5,LP133WP1-TJA3 # 2 MBA13 - i5,LTH116AT01A04 # 99 MBA13 - i5,LTH133BT01A03 # 1 MBA13 - i7, # 75 MBA13 - i7,LP133WP1-TJA3 # 47 MBA13 - i7,LTH133BT01A03 # Redistribution and use in source and binary forms, with or # without modification, are permitted provided that the # following conditions are met: # * Redistributions of source code must retain the above # copyright notice, this list of conditions and the # following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the # following disclaimer in the documentation and/or other # materials provided with the distribution. # * Neither the name of the author nor the names of its # contributors may be used to endorse or promote products # derived from this software without specific prior written # permission. # # THIS SOFTWARE IS PROVIDED BY JOSHUA V DILLON ''AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JOSHUA # V DILLON BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.