[Bug 112018] New: I7-8700 onboard HDMI port does not support 4K resolution
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Oct 16 08:05:00 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=112018
Bug ID: 112018
Summary: I7-8700 onboard HDMI port does not support 4K
resolution
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: major
Priority: not set
Component: DRM/Intel
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: jian-hong at endlessm.com
QA Contact: intel-gfx-bugs at lists.freedesktop.org
CC: intel-gfx-bugs at lists.freedesktop.org
Created attachment 145751
--> https://bugs.freedesktop.org/attachment.cgi?id=145751&action=edit
xrandr shows available resolustions
We have a desktop equipped with i7-8700. Its onboard HDMI port cannot support
up to resolution 3840*2160 on Linux (mainline kernel 5.4-rc3+). But Windows
supports (must do Windows update to latest which includes the graphic driver).
The graphic information
00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 630
(Desktop) [8086:3e92] (prog-if 00 [VGA controller])
Subsystem: Acer Incorporated [ALI] UHD Graphics 630 (Desktop)
[1025:124e]
Flags: bus master, fast devsel, latency 0, IRQ 138
Memory at a1000000 (64-bit, non-prefetchable) [size=16M]
Memory at 90000000 (64-bit, prefetchable) [size=256M]
I/O ports at 5000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [40] Vendor Specific Information: Len=0c <?>
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [100] Process Address Space ID (PASID)
Capabilities: [200] Address Translation Service (ATS)
Capabilities: [300] Page Request Interface (PRI)
Kernel driver in use: i915
Kernel modules: i915
We also check the onboard display port. Display port can support up to
resolution 3840*2160 on Linux.
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