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On Saturday, 10 August 2019 17:18:27 BST Peter Humphrey wrote: |
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> Hello list, |
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> |
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> I have a small box with a quad 64-bit Celeron and integrated graphics During |
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> boot, the UEFI screen is fine, but as soon as the kernel starts, it |
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> switches the background to a dark grey; I can't tell whether the white is |
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> properly white because of the grey background. I don't see anything wrong |
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> with the VT colours, and X11 seems unaffected too with XFCE. I assume the |
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> problem lies in the kernel. |
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> |
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> Can anyone suggest what is wrong with my setup? Google doesn't help me. |
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> |
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> $ sudo lspci -v -s 00:02.0 |
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> 00:02.0 VGA compatible controller: Intel Corporation Atom/Celeron/Pentium |
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> Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller (rev 21) |
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> (prog- if 00 [VGA controller]) |
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> Subsystem: Gigabyte Technology Co., Ltd Atom/Celeron/Pentium |
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> Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller |
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> Flags: bus master, fast devsel, latency 0, IRQ 120 |
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> Memory at 80000000 (64-bit, non-prefetchable) [size=16M] |
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> Memory at 90000000 (64-bit, prefetchable) [size=256M] |
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> I/O ports at f000 [size=64] |
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> [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] |
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> Capabilities: [d0] Power Management version 2 |
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> Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- |
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> Capabilities: [b0] Vendor Specific Information: Len=07 <?> |
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> Kernel driver in use: i915 |
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> |
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> $ ls /lib/firmware/i915 |
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> bxt_dmc_ver1_07.bin kbl_dmc_ver1_01.bin skl_dmc_ver1.bin |
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> bxt_dmc_ver1.bin kbl_dmc_ver1_04.bin skl_guc_ver1.bin |
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> bxt_guc_ver8_7.bin kbl_dmc_ver1.bin skl_guc_ver4.bin |
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> bxt_guc_ver9_29.bin kbl_guc_ver9_14.bin skl_guc_ver6_1.bin |
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> bxt_huc_ver01_07_1398.bin kbl_guc_ver9_39.bin skl_guc_ver6.bin |
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> cnl_dmc_ver1_06.bin kbl_huc_ver02_00_1810.bin skl_guc_ver9_33.bin |
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> cnl_dmc_ver1_07.bin skl_dmc_ver1_23.bin |
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> skl_huc_ver01_07_1398.bin |
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> glk_dmc_ver1_04.bin skl_dmc_ver1_26.bin |
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> icl_dmc_ver1_07.bin skl_dmc_ver1_27.bin |
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> |
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> [ebuild R ] sys-kernel/gentoo-sources-4.19.57:4.19.57::gentoo |
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> USE="symlink -build -experimental" |
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> |
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> I have what I think are the right kernel settings for th I915 driver. For |
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> instance, from kernel help: |
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> CONFIG_AGP_INTEL: |
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> This option gives you AGP support for the GLX component of X |
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> on Intel [...] and I915 integrated graphics chipsets. |
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I assume you have no errors reported in dmesg/syslog? |
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Have you included the firmware blobs in the kernel, or are you loading i915 as |
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a module? |
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|
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Also, I don't know if it applies to this processor, but have you enabled |
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i915.fastboot=1 in the kernel in case it fixes this problem? |
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PS. I'm seeing similar artifacts recently trying to boot various *buntu |
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flavours in QEMU on different radeon host APU/GPUs. I don't know why hardware |
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acceleration stopped working ... I was also considering some kernel setting as |
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being responsible, but haven't been able to find a solution yet. |
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|
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-- |
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Regards, |
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|
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Mick |
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