Hi,
I would like to use QHD resolution (2560x1440) with my shiny new
computer and display. That resolution works if I boot Windows 10
(cough).
What do I need to do to use that resolution in Linux?
I first tried openSUSE 15.3 (kernel 5.3.18-59.19-default)
then I build a v5.14 kernel and tried that.
Both of them max out at FHD (1920x1080).
I am booting with "i915.force_probe=4c8a" on the kernel command line.
My desktop is XFCE4.
CPU is:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 167
model name : 11th Gen Intel(R) Core(TM) i9-11900 @ 2.50GHz
stepping : 1
microcode : 0x40
cpu MHz : 1021.742
cache size : 16384 KB
physical id : 0
siblings : 16
with an H470 chipset. (ASRock DeskMini H470)
00:02.0 VGA compatible controller: Intel Corporation RocketLake-S GT1 [UHD
Graphics 750] (rev 04)
or verbose:
00:02.0 VGA compatible controller: Intel Corporation RocketLake-S GT1 [UHD
Graphics 750] (rev 04) (prog-if 00 [VGA controller])
Subsystem: ASRock Incorporation Device 4c8a
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 153
Region 0: Memory at b0000000 (64-bit, non-prefetchable) [size=16M]
Region 2: Memory at a0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 3000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [40] Vendor Specific Information: Len=0c <?>
Capabilities: [70] Express (v2) Root Complex Integrated Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-, O
BFF Not Supported
AtomicOpsCap: 32bit- 64bit- 128bitCAS-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
AtomicOpsCtl: ReqEn-
Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable+ 64bit-
Address: fee00018 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot
-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [100 v1] Process Address Space ID (PASID)
PASIDCap: Exec- Priv-, Max PASID Width: 14
PASIDCtl: Enable- Exec- Priv-
Capabilities: [200 v1] Address Translation Service (ATS)
ATSCap: Invalidate Queue Depth: 00
ATSCtl: Enable-, Smallest Translation Unit: 00
Capabilities: [300 v1] Page Request Interface (PRI)
PRICtl: Enable- Reset-
PRISta: RF- UPRGI- Stopped+
Page Request Capacity: 00008000, Page Request Allocation:
00000000
Kernel driver in use: i915
Kernel modules: i915
thanks.
--
~Randy
