#16463: HP Envy x360 2020 AMD Ryzen R4 4700 support
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Reporter: yangh | Owner: axeld
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: Servers/app_server | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Platform: All |
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Comment (by yangh):
I've dumped modes returned from fHWInterface->GetModeList(&modes, &count),
status_t
Screen::SetBestMode(uint16 width, uint16 height, uint32 colorSpace,
float frequency, bool strict)
{
// search for a matching mode
display_mode* modes = NULL;
uint32 count;
status_t status = fHWInterface->GetModeList(&modes, &count);
Please refer to the haiku-envy-x360-modes-dump.jpeg, the output shows
that there are two mode available, both are 1920x1080, so could not
matches 1024x768 or 800x600 from:
VirtualScreen::AddScreen(Screen* screen, ScreenConfigurations&
configurations)
{
screen_item* item = new(std::nothrow) screen_item;
if (item == NULL)
return B_NO_MEMORY;
item->screen = screen;
status_t status = B_ERROR;
...
if (status != B_OK) {
status_t status = screen->SetPreferredMode();
if (status != B_OK)
status = screen->SetBestMode(1024, 768, B_RGB32,
60.f);
if (status != B_OK)
status = screen->SetBestMode(800, 600, B_RGB32,
60.f, false);
if (status != B_OK) {
debug_printf("app_server: Failed to set mode:
%s\n",
strerror(status));
}
Then, I added a new mode before 1024x768:
if (status != B_OK)
status = screen->SetBestMode(1920, 1080, B_RGB32,
60.f);
Then it matched, but I still can't see the desktop, and the boot process
stopped at the red rocket which is the same as before, the on-screen debug
message stopped after the new mode matched.
Why haiku_loader could display normally and also the splash screen? Any
suggestions for the next step?
Since this is a brand new CPU and GPU (embedded in the SoC), should I try
to hack the Radeon driver?
Thanks
Walter
--
Ticket URL: <https://dev.haiku-os.org/ticket/16463#comment:10>
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