diff options
| author | Leah Rowe <leah@libreboot.org> | 2024-11-01 15:59:30 +0000 |
|---|---|---|
| committer | Leah Rowe <leah@libreboot.org> | 2024-11-01 15:59:30 +0000 |
| commit | 14b4838d49556eb544c0f6a96d72128c3480ec2c (patch) | |
| tree | 71cc7fb04cd7871ddfc4377b9653990a3d712578 /config/coreboot/default/patches/0022-dell-optiplex_9020-Disable-IOMMU-by-default.patch | |
| parent | 67c92889a866d67132bcc37de6444e0bc56f548c (diff) | |
There were a lot of unnecessary patches, such as the VRAM
patches; as Nicholas Chin has explained to me, the drivers
for these machines will just allocate what RAM they want
anyway, so in a lot of cases the extra allocated Video RAM
simply reduces the total amount of memory for other uses.
In general, we have a lot of patches that have existed for
years. A much more aggressive sweep will be done in the next
major audit, especially when the revisions are updated again.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Diffstat (limited to 'config/coreboot/default/patches/0022-dell-optiplex_9020-Disable-IOMMU-by-default.patch')
| -rw-r--r-- | config/coreboot/default/patches/0022-dell-optiplex_9020-Disable-IOMMU-by-default.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/config/coreboot/default/patches/0022-dell-optiplex_9020-Disable-IOMMU-by-default.patch b/config/coreboot/default/patches/0022-dell-optiplex_9020-Disable-IOMMU-by-default.patch new file mode 100644 index 00000000..f18f119e --- /dev/null +++ b/config/coreboot/default/patches/0022-dell-optiplex_9020-Disable-IOMMU-by-default.patch @@ -0,0 +1,29 @@ +From b5695d0f0dc44ed1eb1feac008e601040feda55d Mon Sep 17 00:00:00 2001 +From: Leah Rowe <info@minifree.org> +Date: Sat, 2 Mar 2024 23:00:09 +0000 +Subject: [PATCH 22/51] dell/optiplex_9020: Disable IOMMU by default + +Needed to make graphics cards work. Turning it on is +recommended if only using iGPU, otherwise leave it off +by default. The IOMMU is extremely buggy when a graphics +card is used. Leaving it off by default will ensure that +the default ROM images in Libreboot will work on any setup. + +Signed-off-by: Leah Rowe <info@minifree.org> +--- + src/mainboard/dell/optiplex_9020/cmos.default | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/mainboard/dell/optiplex_9020/cmos.default b/src/mainboard/dell/optiplex_9020/cmos.default +index 8000eea8c0..0700f971ee 100644 +--- a/src/mainboard/dell/optiplex_9020/cmos.default ++++ b/src/mainboard/dell/optiplex_9020/cmos.default +@@ -4,4 +4,4 @@ debug_level=Debug + nmi=Disable + power_on_after_fail=Disable + fan_full_speed=Disable +-iommu=Enable ++iommu=Disable +-- +2.39.5 + |