diff options
Diffstat (limited to 'drivers/acpi/video_detect.c')
| -rw-r--r-- | drivers/acpi/video_detect.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index bcc25d457581..18cc08c858cf 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -471,6 +471,22 @@ static const struct dmi_system_id video_detect_dmi_table[] = { }, }, { + .callback = video_detect_force_native, + /* Lenovo ThinkPad X131e (3371 AMD version) */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "3371"), + }, + }, + { + .callback = video_detect_force_native, + /* Apple iMac11,3 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "iMac11,3"), + }, + }, + { /* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */ .callback = video_detect_force_native, /* Apple MacBook Pro 12,1 */ @@ -514,6 +530,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = { }, { .callback = video_detect_force_native, + /* Dell Studio 1569 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Studio 1569"), + }, + }, + { + .callback = video_detect_force_native, /* Acer Aspire 3830TG */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Acer"), @@ -828,6 +852,27 @@ enum acpi_backlight_type __acpi_video_get_backlight_type(bool native, bool *auto if (native_available) return acpi_backlight_native; + /* + * The vendor specific BIOS interfaces are only necessary for + * laptops from before ~2008. + * + * For laptops from ~2008 till ~2023 this point is never reached + * because on those (video_caps & ACPI_VIDEO_BACKLIGHT) above is true. + * + * Laptops from after ~2023 no longer support ACPI_VIDEO_BACKLIGHT, + * if this point is reached on those, this likely means that + * the GPU kms driver which sets native_available has not loaded yet. + * + * Returning acpi_backlight_vendor in this case is known to sometimes + * cause a non working vendor specific /sys/class/backlight device to + * get registered. + * + * Return acpi_backlight_none on laptops with ACPI tables written + * for Windows 8 (laptops from after ~2012) to avoid this problem. + */ + if (acpi_osi_is_win8()) + return acpi_backlight_none; + /* No ACPI video/native (old hw), use vendor specific fw methods. */ return acpi_backlight_vendor; } |