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[0/5,SRU,U/J/OEM-5.14] Fix ADL, WD22TB4, Dual monitors display resolution can't reach 4K 60hz

Message ID 20220406080355.3466-1-koba.ko@canonical.com
Headers show
Series Fix ADL, WD22TB4, Dual monitors display resolution can't reach 4K 60hz | expand

Message

Koba Ko April 6, 2022, 8:03 a.m. UTC 
BugLink: https://bugs.launchpad.net/bugs/1967986

[Impact]
SUT attach WD22TB4 dock, plug in two 4K monitor, the monitor resolution can't reach 4K 60Hz

[Fix]
Fix maximum DP source rate.

this patch should be taken first,
73867c8709) drm/i915/display: Remove check for low voltage sku for max dp source rate

Then, on U/J/OEM-5.14, apply 3fd6afb623ba) drm/i915/intel_combo_phy: Print I/O voltage info,

[Test Case]
1. Connect two 4K external monitor to WD22TB4
2. the monitor resolution can reach 4K 60Hz

[Where problems could occur]
Low

Comments

Tim Gardner April 6, 2022, 12:49 p.m. UTC | #1 
Acked-by: Tim Gardner <tim.gardner@canonical.com>

On 4/6/22 02:03, Koba Ko wrote:
> BugLink: https://bugs.launchpad.net/bugs/1967986
> 
> [Impact]
> SUT attach WD22TB4 dock, plug in two 4K monitor, the monitor resolution can't reach 4K 60Hz
> 
> [Fix]
> Fix maximum DP source rate.
> 
> this patch should be taken first,
> 73867c8709) drm/i915/display: Remove check for low voltage sku for max dp source rate
> 
> Then, on U/J/OEM-5.14, apply 3fd6afb623ba) drm/i915/intel_combo_phy: Print I/O voltage info,
> 
> [Test Case]
> 1. Connect two 4K external monitor to WD22TB4
> 2. the monitor resolution can reach 4K 60Hz
> 
> [Where problems could occur]
> Low
Paolo Pisati April 14, 2022, 1:54 p.m. UTC | #2 
On Wed, Apr 06, 2022 at 04:03:50PM +0800, Koba Ko wrote:
> BugLink: https://bugs.launchpad.net/bugs/1967986

Applied patch 3 and patch 5.
Timo Aaltonen April 22, 2022, 7:09 a.m. UTC | #3 
Koba Ko kirjoitti 6.4.2022 klo 11.03:
> BugLink: https://bugs.launchpad.net/bugs/1967986
> 
> [Impact]
> SUT attach WD22TB4 dock, plug in two 4K monitor, the monitor resolution can't reach 4K 60Hz
> 
> [Fix]
> Fix maximum DP source rate.
> 
> this patch should be taken first,
> 73867c8709) drm/i915/display: Remove check for low voltage sku for max dp source rate
> 
> Then, on U/J/OEM-5.14, apply 3fd6afb623ba) drm/i915/intel_combo_phy: Print I/O voltage info,
> 
> [Test Case]
> 1. Connect two 4K external monitor to WD22TB4
> 2. the monitor resolution can reach 4K 60Hz
> 
> [Where problems could occur]
> Low

applied to oem-5.14, thanks
Andrea Righi July 19, 2022, 5:30 a.m. UTC | #4 
On Wed, Apr 06, 2022 at 04:03:50PM +0800, Koba Ko wrote:
> BugLink: https://bugs.launchpad.net/bugs/1967986
> 
> [Impact]
> SUT attach WD22TB4 dock, plug in two 4K monitor, the monitor resolution can't reach 4K 60Hz
> 
> [Fix]
> Fix maximum DP source rate.
> 
> this patch should be taken first,
> 73867c8709) drm/i915/display: Remove check for low voltage sku for max dp source rate
> 
> Then, on U/J/OEM-5.14, apply 3fd6afb623ba) drm/i915/intel_combo_phy: Print I/O voltage info,
> 
> [Test Case]
> 1. Connect two 4K external monitor to WD22TB4
> 2. the monitor resolution can reach 4K 60Hz
> 
> [Where problems could occur]
> Low

Already applied via upstream updates.

Thanks,
-Andrea