diff options
Diffstat (limited to 'tools/display_driver_helper')
| -rw-r--r-- | tools/display_driver_helper | 53 |
1 files changed, 48 insertions, 5 deletions
diff --git a/tools/display_driver_helper b/tools/display_driver_helper index 1ef1dac..5fb6c74 100644 --- a/tools/display_driver_helper +++ b/tools/display_driver_helper @@ -2,7 +2,7 @@ # # Display driver helper # -# Copyright (c) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi> +# Copyright (c) 2010, 2011, 2012 Anssi Hannula <anssi.hannula@iki.fi> # # - Load drivers for specified modaliases, skipping disabled display drivers # that would cause conflicts (KMS vs. vesa, KMS vs. proprietary). @@ -47,6 +47,12 @@ CONFLICTS_radeon="fglrx" # See end of script for descriptions of global variables. check_driver() { local name="$1" + # modalias is optional, only needed to set MODOPTIONS for radeon + # this should not be set when not intending to load the module + local modalias="$2" + + MODOPTIONS= + case "$name" in i915) # implicitely loaded by X.org @@ -61,9 +67,42 @@ check_driver() { # TODO: this check could be omitted if radeon was explicitely # specified in xorg.conf - but that is only known by check_xorg. check_gl /etc/fglrx/pxpress-free.ld.so.conf && return 1 + IS_KMS=1 - # radeon needs to be loaded before X server + # radeon KMS needs to be loaded before X server NEEDS_LOAD_NOW=1 + + # check if firmware is needed and present (random fw checked) + if [ -n "$modalias" ] && [ ! -e "/lib/firmware/radeon/R700_rlc.bin" ]; then + # no firmware, lets check if it is needed + pciid="${modalias#pci:v00001002d0000}" + pciid="${pciid%sv*}" + case "$pciid" in + # All Radeons up to PALM (see radeon_probe.c) + 31??|3E??|4???|5???|7???|68??|94??|95??|961?|971?|98??) + # The radeon driver reportedly has some issues + # when loaded without firmware - it doesn't fallback to noaccel + # nicely as it should, instead the framebuffer gets messed up. + # However, these cards are still supported by usermode modesetting, + # so just disable KMS. (Mageia bug #3466) + # TODO: actually fix the driver to not mess up framebuffer when no firmware + # is present and disable accel cleanly so that this workaround + # wouldn't be needed -Anssi + MODOPTIONS="$MODOPTIONS modeset=0" + IS_KMS= + # needs to be loaded now in order to set the module option + NEEDS_LOAD_NOW=1 + ;; + ????) + # Cards newer than PALM don't support UMS, so don't load the driver + # at all (it might still get done by X server, though). + return 1 + ;; + *) + # Modalias parse error, strange. Load normally... + ;; + esac + fi ;; nouveau) # implicitely loaded by X.org @@ -256,7 +295,7 @@ load_driver() { local load_default=1 for modulename in $(/sbin/modprobe -Rq "$modalias"); do - check_driver "$modulename" + check_driver "$modulename" "$modalias" case $? in 1) # a driver which needs handling by this script matches # the modalias, but was not configured - do not run @@ -278,7 +317,7 @@ load_driver() { [ -z "$NEEDS_LOAD_NOW" ] && /bin/plymouth --ping 2>/dev/null && return 0 /bin/plymouth quit 2>/dev/null fi - /sbin/modprobe -b "$modulename" && return 0 + /sbin/modprobe -b "$modulename" $MODOPTIONS && return 0 done # no specially handled modules were loaded, so load all modules normally @@ -310,7 +349,7 @@ get_active_kms_drivers() { modalias="$(cat "$device/modalias")" for modulename in $(/sbin/modprobe -Rq "$modalias"); do IS_KMS= - check_driver "$modulename" || continue + check_driver "$modulename" "$modalias" || continue [ -n "$IS_KMS" ] && echo $modulename done done @@ -402,6 +441,10 @@ DKMS_AUTOLOAD_MODULE= # "nvidia" in loaded modules list). UNSURE= +# Extra module options - used to disable radeon modesetting when no firmware +# is present and it is needed. +MODOPTIONS= + case "$1" in --load) load_driver "$2" |